the wall journaltm
TRANSCRIPT
The Wall JournalTMTHE INTERNATIONAL JOURNAL OF TRANSPORTATION RELATED ENVIRONMENTAL ISSUES
Issue No.
42January to May
2001
Cover Photo
Location: Interstates 76 and 295Camden/Cherry Hill areas, New Jersey
Owner: State of New jersey, Departmentof Transportation
Architect: Gannet-Fleming, Inc., CampHill, Pennsylvania
DesignEngineers:Buchart-Horn,Inc. &BASCO Associates York, Pennsylvania
Material Supplier: Concrete SafetySystems Bethel, Pennsylvania
GeneralContractor: DriscollConstruction Company SpringHouse,Pennsylvania
COLOR PkoDucr APPLIcA11ON:Building Material: Concrete panels and
posts with integral colorColor Specification: To specify
Bayferrox ® see Sweets, Architects’First Source, andwww.BayerUS.com/pigments
FULL STORYIN OUR NEXTISSUE
Dear Soren,
You may or may not remember me,but I’ve represented Bayer Corporationat your various meetings. Because oforganizational changes, I’ll no longerbe able to continue my membershipand the ‘friends” status on the TRBCommittee. I’m now selling BayScapecolorant to the wood and rubbermulch industry. BayScape is madefrom the same Bayferrox Bayer makesfor the construction industry that usesthis pigment to color concrete noisebarriers - among other things. Here’sthe web site:www.BayScapeColors.com Bayer, Ibelieve, is also represented by PaulCroushore.
Soren, I want you to know it’s beena great personal and professional satis-faction to work with you and the TRB.I’ve learned a lot, and enjoyed the
company of the other members.Please extend my good-byes to every-one.
I wish you health, happiness, andconti nued success.
Kriem MichelBayer Corporation5 N Jasper AvenueMargate NJ 08402Tel:609-823-1010Fax:609-823-8802
Mr. Soren Pedersen:
A copy of your Nov/Dec issue waspassed around our office, and I readthe article on Page 9 about how thegauge of railroad track came about.
• SeniorAirport NoiseConsultant• SeniorVibration Specialist• SeniorArchitecturalAcousticsConsultant• Video, SoundandAudiovisualSystemConsultants
AcentechIncorporated33 Moulton Street • Cambridge, MA 02138
1429E. ThousandOaksBlvd. • ThousandOaks,CA 91362Phone:617.499.8000• Fax: 617.499.8074
LETTERS TO THE EDITOR
Consultants in:
Continued on page5
• Noise and Vibration Control• Environmental andIndustrialAcoustics• ArchitecturalAcoustics• AudiovisualandSoundSystemDesign• Building Dynamics
EmploymentOpportunities:
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We arean equalopportunityemployer
Acentech
2 The Wall journal January to May 2001 Issue No. 42
The Wall Journal1l~InternationalIonmala lisra9)ortalionRelatuJEnvimnrne,1a1~um
Volume Xli 2001Issue No. 42
The Wall Journal is published up tosix times a year. Issues are mailed bi-monthly on or about the middle of thefirst month in the designated two-month issue date~
The Wall Journal is a publication ofThe Wall Journal. Editorial, subscrip-tion and advertising offices are locatedat 26 Warrender Ave., Etobicoke,Ontario, Canada, M9B 5Z2.Telephone us at (416) 231-4514 or fax(416) 231-4564. Email us at info@the~walljournal.cont Submissions ofpapers, articles, stories, events,announcements, letters, and photo-graphs for publication should beaddressed to TheWall Journal, and for-warded to the above address.
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Published articles, comments, let-ters, papers and advertisements do notnecessarily represent the views and/orendorsements of The Wall Journal. Theauthors of submitted material are sole-ly responsible for the truth and accura-cy of their submissions, and The WallJournal cannot be held liable for anydamages suffered by our readers as aresult of their use of published materi-al.
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Printed in canada by AcMlnc.copyright 2001The Wall journal
For subscription and advertisinginforamation, see Page 16.
n more thanne occation,
I have beenreminded that I neg-lected to note in thelast issue, the effortsofone of the organizersof the 2000 TRBAl F04 Summer meet-ing in New York City. That person wasMatt Murrillo, of Lewis Goodfriend andAssociates. His selfless efforts to ensuretop-notch, quality presentations werequit evident during the sessions and werewell appreciated and recognized by all.
More good news, Mart has volun-teered to organize the presentation ses-sions again for this years summer meetingin New Orleans. Thank you Mart for allyour efforts. They will not go unnoticed.
For more details on the meeting, seetheTRB Al F04 News item on page 22 orvisit The Wall Journal website at:www.thewalljournal.com for completeprogram details and registration forms.
Progress on expanding the information
Lewis S. Goodfriend & AssociatesA ~ CONSULTINGENGINEERSIN ACOUSTICSV ~V’ www.lsga.com
760ROUTElOWESTWHIPPANY,NJ07981
voice: 973-560-0090fax: 973-560-1270
e-mail:[email protected]
on The Wall Journal website has takenmajor leaps in the last few weeks. The listof back issues and articles has beenupdated with, at least one article fromeach issue available for downloading. Inaddition more details are available onupcoming events.
Make sure you visit the site on a regu-lar basis to catch all the new develop-ments. Also, to participate in theTransportation Noise Forum which canbe accessed through the “link” page.Also included in the links is FHWA TrafficNoise Barrier Design Handbook.
Unfortunately, we are running latewith the issues this year. As a result, thisissue combines what should have beenthe Januray/February 2001 theMarch/April 2001 and part of theMay/June 2001 issues. This does notaffect your subscriptions nor any advertis-ing agreements. Both are based on issuenumbers rather than length of time.Barring any unforseen problems, weshould be back on track by theJuly/August Issue (Issue 44)
THE EDITOR’S I~0 RN ER by Soren Pedersen
Matt Murillo, VP of Lewis S.GoodfriendandAssociateshasvolun-teeredto organizethe presentationsfor the2001 TRB A1FO4 SummerMeeting to be held in New Orleans
Experts?Noneof our menare “experts.”We havemostunfortunatelyfound it necessary to get rid of aman as soonas hethinks himselfan expertbecauseno oneever
considershimselfexpertif hereal-ly knows hisjob. A manwho
knows a job seessomuchmoretobe donethanhe hasdone,that he
is alwayspressingforwardandnevergives up aninstantof
thoughtto how goodandhowefficient he is. Thinking always
ahead,thinking alwaysof tiying
to do more,brings a stateofmindin which nothingis impossible.
The momentonegets into the
“expert” stateof mindagreatnumberof thingsbecomeimpos-
sible.
-HenryFord Sr.
The Wall Journal January to May 2001 Issue No. 42 3
A couple of things you may findinteresting:
First, the Solid Rocket Boosters onthe Space Shuttle are a bit over 10 feetin diameter, not “just a little wider”than railroad track gauge, althoughclearances through tunnels probably
does have an impact on how big theyare. Clearance from the centerline istypically 8-1/2 feet, although mostrolling stock is around 10 feet wide.
Which brings us to the second thing:Why are they balancing a machineweighing 420,000 pounds and 10 feetwide on a platform only 5 feet wide?Actually, many different gauges havebeen tried: 2 foot, 2-1/2 foot, threefoot, meter, 3-1/2 foot, and 6 foot cometo mm. The American South had a dif-ferent gauge than the North during theCivil War -- they changed over on one
weekend. A bad train wreck tookplace because one railroad had a trackgauge 1/2 inch different from the carthat was using it.
Turns out the five foot center-to-cen-ter of the rails is the best compromisebetween cheap construction (narrowertrack, cheaper to build) and carryingcapacity of the trains. “If it’s stupid butworks, it isn’t stupid”
Oh -- and the reason that they usedthe same distance between the wheelsof the old English wagons was not, I’veheard, because they were using thesame jigs. I understand that they wereusing the wagons themselves as thefirst rolling stock.
Really enjoyed the magazine. Keepup the fine work.
Chas. H. Hague, PE, SERailroad Structural EngineerAlfred Beseech & Co.
LETTERS TO THE
EDITORConrinued from page 2
Visit us on-line at
Join in the Noise biscussionForumAccess the FHWA Highway Noise Barrier DesignHandbook
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4 The Wall Journal January to May 2001 Issue No. 42
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LewisS. Goodfriend & AssociatesCONSULTING ENGINEERS IN
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The Wall Journal January to May 2001 Issue No. 42 5
A Surveyof StateDOTsViews RegardingPavement/TireNoise
by: Roger L. Wayson,Associate Professor;
Universityof Central Florida,Civil& EnvironmentalEngineerin,g,
P0. Box 162450;Orlando, Florida 32816-2450;
tel: 407 823-2480;fax: 407 823-3315;
email: wayson~pegasus.cc.uct:edu
Abstract.
N oise caused by the interactionof the pavement surface andmotor vehicle tires is an area
that has seen recent increased interestin the United States. There is substan-tial proof in the literature that changesin pavement type and surface texturecan reduce sound levels for highwayneighbors., In general, reported reduc-tions in sound levels in Europe seem tobe greater than those achieved in theUnited States for certain pavementconditions. This conflict in results hassparked many state departments oftransportation (DOTs) to investresearch dollars to further quantifyboth the benefits and deficits of usingalternative pavement types or texturesfor noise reduction. However, eventhough the state DOTs represent one ifnot the major stakeholders of this noiseabatement technique, coordination inresearch efforts between the states hasbeen lacking.
SoundZero~barriers are light-weight, S pounds per square foot,making them the perfect solutionfor installations on existing struc-tures not designed to support con—ventional barriers. Integral safetyrigging can be engineered into thepanels for an extra measure ofsafety where impact considerationsmust be taken into account.Unlimited color, texture and designflexibility assures architecturalintegrity with any community. Thebarriers are custom made for-~“-nryir5tallation, with full wall
~ thic~iess
This same conclusion was reachedat a special session on pavement’tirenoise organized by the Committee onTransportation Noise and Vibration(Al F04) at the Transportation ResearchBoard Annual Meeting in January,1999. At that time, a working groupwas formed to investigate research onpavement/tire noise. Table 1 lists themembers of that working group. Thefirst task of the working group was tosurvey the state DOTs in an effort todetermine the relative importance ofseveral key parameters dealing withsuch research. This paper analyzesthese replies and reports on the results.The opinions stated in this work arethose of the author and should not beconsidered the formal stance of theTransportation Research Board (TRB).Implications of these results are alsodiscussed in light of a recent synthesislon the topic completed by the author.
Methodology
In an effort to determine the overallconsensus of the state DOTs a blindsurvey was mailed to each noise abate-ment officer of each state and PuertoRico. After the listed deadline, usingthe postmarks on the envelopes todetermine which states that hadresponded, telephone calls were madeto all remaining states to try andencourage more participation. Thirty-six states, or approximately 70% of thestates, replied. While the authorwould have preferred even morereplies, a seventy percent sample rateof the entire population is still thoughtto indicate the overall trends quitewell.
The survey consisted of eight ques-tions. A complete copy of the survey isshown as Figure 1. It was intended tokeep the survey short, simple and con-centrate only on major issues.However, to avoid possible skewing of
Continued onpage 7
6 The Wall Journal January to May 2001 Issue No. 42
to t~e~e e~ ~
or co~l~
The ~ght,r &terr,ati~,e~rth~g~way
Pavement/Tm~NoiseContinued from page 6
the results multiple opportunities werealso included for the respondents towrite in comments.
Each response was tabulated andformatted in a commercially availablespreadsheet. Care was taken to avoidinput that would have skewed results.For example, if a question response didnot comply with the requested formatthe replies were carefully reviewedand only entered if it increased thedata base without skewing the results.In Question 4, if the categories werenot properly ranked, the results couldnot be included in the final analysiswithout skewing the results.Fortunately, this occurred very infre-quently. Due to omission or changingof data, not all categories always addto the number of respondents.
After all data was included and ver-ified, overall analyses were performedand results plotted. In some cases theanalysis was simply adding upresponses in a category. In others,such as Question 4, trends were evalu-ated. The results of this analysis arepresented in the next section of thisreport.
Results
The results of each question are firstexplored and then conclusions basedon overall trends are presented.
Question 1.Should pavement type be consid-
ered during noise abatement analysisfor highway projects?
The respondent was asked to answer
simply YES or NO to this question.Twenty-three (23) respondents said yeswhile thirteen (13) replied no. Thiswould tend to indicate by the marginof responses (72 % for) that the gener-al consensus is that pavement typeshould be considered. Many com-ments were also submitted with theanswer to this question. Many echoedthe same ideas. Four major ideasgroups were submitted and are: 1) asimilar question on pavement textureshould have also been included in thesurvey since this is also very important;2) pavement changes should only beconsidered for noise abatement if reli-able data is available; 3) the decreasein abatement effectiveness or changesof the acoustic generation mechanismwith time must also be considered;and, 4) other mitigation methodsshould work with pavement selection.
Question 2.How much sound level reduction,
in dB(A), would warrant changingpavement types?
The requested response to this ques-tion was a number value. Suppliedvalues ranged from 1 to 6 dB(A) ofabatement or noise reduction required
to warrant changing pavement types.The average was 3.9 dB(A). Figure 2shows the frequency distribution. Onerespondent did list 20 dB(A) but statedthe high value was given because inthe respondent’s opinion, use of pave-ment for noise reduction is never war-ranted. This extreme value was notused in the overall analysis.
Question 3.What is the greatest impediment in
your state to using alternate pavementtypes for noise abatement?
Respondents were asked to selectfrom the following choices: Federalconcurrence; State policy (written orunwritten); Cost; Maintenance;Reliable data on noise reduction;Safety concerns; or, Other. Figure 3shows the frequency distribution ofresponses. While it would be risky toassume an exact ranking of all the cat-egories some trends are apparent.Most apparent is that the lack of reli-able data for noise reduction frompavement surfaces is the greatestimpediment. The second tier ofresponses includes cost and mainte-nance with all other categories in athird tier when ranked in groups.
Reduction Req’d to Change Pavement
20 ______________
~ 15 -C0Q.U,a) __________________~~100I-
.0 ____________Ez
0I
dB(A)2 3 4 6
Figure2. Numberof Responses
Continued onpage 8
The Wall Journal January to May 2001 Issue No. 42 7
Pavement1Tu~eNoise Continued from page 7 HighwayNoise causedby Pavement/TireInteractionA Surveyfrom Trb CommitteeA1fI~4
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Figure3. The Greatest Impediment to Implementation
and/or standards.9. Impacts on soundlevels caused by
various tire types (e.g., studdedtires).
10. Impacts on sound levels comparedby vehicle types (e.g., automobilevs. heavy truck).
1 1.Safety considerations of alternatepavement types.
12.Maintenance and pavement serv-ice life ofalternatepavement types.
13. Other: please specify
It should be noted that the providedcategories were not numbered asshown here to avoid potential bias inresponses. However, numbers havebeen given to the responses in this
Question 4.What is the greatest research need
in your State regarding pavement/tfrenoise?
For this question, the respondentswere asked to rank the relative impor-tance of twelve different categories ofresearch needs with the number one(1) given to the greatest research need.An opportunity was also provided forcomments on topics that may not havebeen included but important to a state.The list of provided categories includ-ed:
1. Comparison of sound levels fromcommon pavement surfaces.
2. Results of less common pavementsurfaces (e.g., exposed aggregate).
3. Impacts due to tining.4. Development of new pavement
types (e.g., rubberizedasphalt).5. Comparison of trailer (close-prox-
imity) andpass-by measurements.6. Establishment of measurement
method criteria.7. Impacts on vehicle interior levels.8. Development of Federal criteria
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‘iJuiiisoisound experience
www.dur~soLcom
Continued on page 9
8 The Wall Journal January to May 2001 Issue No. 42
Pavement/Tnt~NoiseContinued from page 8
paper to allow understanding of Figure4. Figure 4 shows each listed categoryreferenced by the corresponding num-ber on the abscissa. Allowing thenumber 1 to be used as the best rank-ing allows individuals to understandthe ranking process more easily.However, it does not assist in graphicalrepresentation. Accordingly, data for-mailing was used to better present theresults. The ordinate of Figure 4 is apoint score that was derived by addingall the scores by category to determinethe maximum point total in each cate-gory. Adding one to this sum for eachcategory so that no values of zerowould occur, the actual values in eachcategory were then subtracted from themaximum value. This left the numberone need with the highest numericvalue, etc., and allowed for a morerepresentative presentation of theresu Its.
A review of Figure 4 shows that ingeneral, four categories of responsescould be determined. Using thisapproach, in the first tier of researchneeds would be: comparisons of soundlevels from common pavement sur-faces, safety considerationsof alternatepavement types, and maintenance andpavement service life of alternate pave-ment types (categories 1, 11 and 12,respectively). The second tier wouldconsist of: establishment of measure-ment method criteria, development ofFederal criteria and/or standards, andimpacts on sound levels compared by
Figure4. ResearchAreaNeeds
vehicle types (e.g., automobile vs.heavy truck) (categories 6, 8 and 10respectively). The third tier wouldinclude: results of less common pave-ment surfaces (e.g., exposed aggre-gate), impacts due to tining, develop-ment of new pavement types (e.g., rub-berized asphalt) and impacts on soundlevels caused by various tire types(e.g., studded tires) (categories 2, 3, 4and 9, respectively). Finally the fourthtier would include: comparison of trail-er (close-proximity) and pass-by meas-urements and impacts on vehicle inte-rior levels (categories 5 and 7).
In reviewing these tiers of responses,it can be seen that the first tier rein-forces the answers provided inQuestion 3 (first and second tierresponses). As such, impediments toimplementation and research needsmirror each other. It is also apparent
Figure 5. RelativeRankingofPavement/TireNoiseResearch
that the lowest ranked need, as couldbe expected, was the sound inside thevehicle. Of interest were two repeatedcategories supplied in the “other’selection: cost and longevity.
Question 5.In terms of other noise abatement
research for highways, pavement/tirenoise research is: The most important;Extremely important; Moderatelyimportant; Not very important; or, Laston the list.
A selection of one of the providedcategory was requested on the survey.It can be seen from Figure 5 that aboutone-half of the state DOTs thought theresearch need for pavement/tire noisewas moderate (the center category).All responses when ‘averaged” showthis central tendency. It could be con-cluded then that on a national level theresearch is needed, but not consideredthe most important noise researchneed.
Question 6.How should U.S. research efforts on
pavement/tfre noise be coordinated?The respondents were asked to
select one from the following cate-gories: through TRB, Al F04; throughFHWA; through University Centers;
Continued on page 13
Test drive theFHWA Highway Nol~ ~arrl~r D~lgriH~ndb~k
US Depanteeoot(C~version) on the web ot: of
www.Thewolljournol.com Mmiein*rattao
Lewis S. Goodfriend & AssociatesA ~ CONSULTING ENGINEERSIN ACOUSTICS
V V’~°~°~ www.lsga.com
OTtansportation noiseanalysis
• Environmental& industrialnoise~inalysss& control
Licensed Engineers
760 ROUTE lOWESTWHIPPANY,NJ07981
voice:973-560-0090fax: 973-560-1270
e-mail: info®lsga.com
Research Needs
200
150
~1 2 3 4 5 6 7 8 9 10 11 12
Category
Relative Importance
(2 22t/,) ~~2%~) (1389%)
The Wall Journal January to May 2001 Issue No. 42 9
Th~No~ ~rr~r Con~tru~t~nF~r~c~tAn updated look at potential noise barrier projects in the making. Thissurvey was provided by LEAP Assoc. International of
Florida, consultants to the precast concrete industry for projects in the transportation construction field.
For further infomation, contact Cindy Thomas, LE,4PAssociates International 11602 N 51st St, Suite 100, Tempkr Terrance, FL 33617, Tel. 813 988-6870*Parv 3 willbepublishedin thenextissue. Past1 waspublishedin the Nov/Dec2000issue (SW). The entiresurteyis availableon The wail Journalwebsfteat www.thewalljournal.com
2000 Soundwall Activity Survey (PART 2 of 3*)
StateDistrict!Region Location
BidDate Cycle Materils H X L Project Contact Info
IA -235 DesMoinesIA
-235 DesMoinesIA
-235 DesMoinesIA
-235DesMoines IA
235 DesMoinesIA
2001
2001
2003
2004
2005
Des.
Des.
Des.
Des.
Des.
PrecastConcret 4.5mx 1.33kmPanels
PrecastConcret 4.5mx 333mPanels
PrecastConcret 4.5m x 3.333kmPanels
PrecastConcret 4.5m x 2.00kmPanels
PrecastConcret 4.5m x 1.33kmPanels
Tony Gustafson,800 Lincoln Way,Ames, IA 50010,P:515-239-1430
Tony Gustafson,800 Lincoln Way, Ames, IA 50010,P:515-239-1430
Tony Gustafson,800 Lincoln Way,Ames, IA 50010,P:515-239-1430
Tony Gustafson,800 LincolnWay,Ames, IA 50010,P:515-239-1430
TonyGustafson,800 LincolnWay, Ames, IA 50010,P:515-239-1430
KS Des. No projectsto bid, in Des.orPD&E
KY 9-121.00KY 11 (Bath/Montgomery) 11-00
10-00
10-00
Unknown
Bid
Bid
Bid
Design
PrecastConcret 2 walls 6’ x 20’Panels each
PrecastConcret 12’ x 3,108’Panels
PrecastConcret 12’ x 4,135’Panels
Unknown Unknown
Mr. Omohundro,P0 Box 347, Flemingsburg,KY41041 P:606-845-2551
David Kratt, P0Box 37090,Louisville, KY 40233P:502-367-6411
David Kratt, P0 Box 37090, Louisville, KY 40233P:502-367-6411
Bill Gulick, Div. Of Des.,StateOffice Bldg. Frankfort,KY 40622P:502-564-3280
LA Des
Des
Des
Des
1-10 in New Orleans
1-10 & 1-12 BatonRouge
EssenLaneInterchange
Old HammondHwy, Baton RougePhase1
12-00
10-00
10-02
10-01
Bid
Des.
Des
Des.
Concrete 22’ x 2.2 miles
Concrete 24’- 26’ x 10miles
Concrete Unknown
Concrete 12’ - 14’ x 5milestotal forproject
JeffBurst,P0 Box 94245, BatonRouge,LA 70804-9245 P: 225-379-1356,F: 504-379-1351orReneChopinat BurkeKleinpeterInc. 504-486-5901
Jeff Burst,POBox 94245,Baton Rouge,LA 70804-9245 P: 504-379-1356,F: 504-379-1351or PhilipMeyersat GEC P: 225-612-3106
Philip Meyersat GECP: 225-612-3106or DebbieGuestat LA DOT P: 775-379-1534
JeffBurst,POBox 94245,Baton Rouge,LA 70804-9245 P:504-379-1356,F:504-379-1351 or JeromeLohmannat PECP: 225-612-3106
ME Hwy Des.
Turnpike
No projectsto bid, in Des.or PD&E
No projectsto bid, in Des.or PD&E
MD Env. Des.
Env. Des.
Env. Des.
Env. Des.
Env. Des.
Env. Des.
Env, Des.
Env. Des.
Env. Des.
Env. Des.
Env. Des.
US-29 HowardCountyColumbiaHills
1-495 PrinceGeorge’sCountyAuthVillage, Princeton/AndrewsManor
1-495 MontgomeryCountyWildwoodManor
1-495 MontgomeryCountyLongwood,
Bradley Manor, BarnettRd.
1-495 MontgomeryCountyForestGlen
1-495 MontgomeryCountyParkViewEstates
1-495 MontgomeryCountyBurningTreeEstates
US5O AnneArundelCountyRiverview/Lindamoor
1-83 Baltimore CountyLongford North
US5O PrinceGeorge’sCountyPrincetonSq. Ardmore
MD 695, Anne ArundelCountyHarrisHeightsMorris Hill
12-00
9-00
10-00
10-00
11-00
11-00
1-01
4-01
04-01
05-01
09-00
Des.
Des.
Des.
Des.
Des.
Des.
Des.
Des.
Des.
Des.
Des.
Concrete 2,000LF
Concrete 4,000LF
Concrete 4,000LF
Concrete 8,000LF
Concrete 1,000 LF
Concrete 1,000LF
Concrete 6,000LF
Concrete 6,000LF
Concrete 3,000LF
Concrete 4,000 LF
Concrete 3,000LF
FredEisen,ProjectManager,707N. CalvertSt.,Baltimore,MD 21202P: 410-545-8598
FredEisen,ProjectManager,707 N. CalvertSt.,Baltimore,MD 21202P:410-545-8598
FredEisen,ProjectManager,707 N. CalvertSt.,Baltimore,MD 21202P: 410-545-8598
FredEisen,ProjectManager,707 N. CalvertSt.,
Baltimore,MD 21202 P:410-545-8598
FredEisen,ProjectManager,707 N. CalvertSt.,Baltimore,MD 21202 P:410-545-8598
FredEisen,ProjectManager,707 N. CalvertSt.,Baltimore,MD 21202P: 410-545-8598
FredEisen,ProjectManager,707 N. CalvertSt.,Baltimore,MD 21202 P:410-545-8598
FredEisen,ProjectManager,707 N. CalvertSt.,Baltimore,MD 21202P: 410-545-8598
FredEisen,ProjectManager,707 N. CalvertSt.,Baltimore,MD 21202P: 410-545-8598
FredFisen,ProjectManager,707 N. CalvertSt.,Baltimore,MD 21202P: 410-545-8598
FredEisen,ProjectManager,707 N. CalvertSt.,Baltimore,MD 21202P: 410-545-8598
~10 The Wall Journal January to May 2001 Issue No. 42
District!Region Location
BidDate Cycle Materils H X L Project Contact Info
Env.Division
Env.Division
Env.Division
Wakefield/Quincy
Boston(Dorchester)
Weymouth-Dukbury Rte. 3
Unknown
2001
2005-10
Bid
PD&E
PD&E
Concrete
ConcreteorWood
Concrete
14’ x 6000’
18’ x 1000’
UnderStudy
Michael Paienwonsky,10 ParkPlaza,Room 4260,
Boston,MA 02116,P: 617-973-8245
Michael Paienwonsky,10 ParkPlaza,Room 4260,Boston,MA 02116,P: 617-973-8245
Michael Paienwonsky,10 ParkPlaza,Room 4260,Boston,MA 02116,P: 617-973-8245
Univ.
North
North
Grand
SW
No projectsto bid, in Des.or PD&E
M-6/U5131 Interchange
M24
No projectsto bid, in Des.orPD&E
1-94 in City of Kalamazoo
Jan-OS
Jan-03
Jan-10
Des.
PD&E
PD&E
Unknown
Unknown
Unknown
2m- 6mx5184m
3m - 4.5mx205m
Unknown
MohamadAlghurabi P: 517-373-7674
GeralynAyersP: 517-335-2635
JohnPolasek,1501 E. Kilgore Rd., Kalamazoo,MI
49001
Metro
Metro
Metro
Metro
Metro
Metro
Stage1 TH100GoldenValley Glenwoodto Duluth
StageII Crystal TH100Duluthto 40thAve.
Mississippi Ridge
1-35 W
StageIll & IVTH 100 40th to Franceandthento Robbinstate
TH61/1494Wakota Bridge
3-00
3-00
11-00
3-00
Ill - 2001IV -2002
2003
Bid
Bid
Bid
Bid
Des.
PD&E
BlueWoodLaminate
Blue WoodLaminate
BlueWoodLaminate
BlueWoodLaminate
BlueWoodLaminate
Unknown
6m x 4068m
6m x 3646m
10’- 15’ x 2500’
10’- 20’ x10,000’
Unknown
Unknown
JamesHansen,1500W.Co Rd. B-2, Roseville,MN55113P:651-582-1392 F: 651-582-1368
JamesHansen,1500W.Co Rd. 8-2, Roseville,MN55113P:651-582-1392F: 651-582-1368
JamesHansen,1500 W. Co Rd. B-2, Roseville, MN55113P:651-582-1392 F: 651-582-1368
JamesHansen,1500W.Co Rd. B-2, Roseville,MN55113P:651-582-1392F: 651-582-1368
JamesHansen,1500 W. Co Rd. B-2, Roseville,MN55113P:651-582-1392F: 651-582-1368
JamesHansen,1500W.Co Rd. B-2, Roseville,MN55113P:651-582-1392 F: 651-582-1368
6
6
1-435 & Rte 350 Interchange
1-43S- 1-470 - Rte 71 Interchange
1-70 @ Rte 94.
Route364
2002-03
2003-04
2004
02/01
PD&E
PD&E
PD&E
Bid
Unknown
Unknown
Concrete
Concrete
Unknown
Unknown
8’-l 0’ x 1,500’
2.4m - 5.5m x6,000m
SteveHamadi P:816-622-0474
SteveHamadi P:816-622-0474
BarryBergman,1590 WoodlakeDr. Chesterfield,MO63017 P: 314-340-4390
BarryBergman,1590 WoodlakeDr. Chesterfield,MO63017P: 314-340-4390
No projectsto bid, in Des.orPD&E
GreatFalls
Env. Svcs.
No projectsto bid, in Des.orPD&E
No projectsto bid, in Des.orPD&E
City ofSalisbury
Rdwy Des.
Rdwy Des.
Rdwy Des.
Rdwy Des.
Rdwy Des.
Rdwy Des.
Rdwy Des.
Rdwy Des.
Rdwy Des.
Rdwy Des.
Rdwy Des.
Rdwy Des.
Rdwy Des.
Rdwy Des.
Rdwy Des.
1-85, SalisburyNC 1-2511 CA
1-360DB DurhamCounty
l-2511CA RowanCounty
R-2633CANewHanoverCounty
R-2547CWake County
R-2246BCabarrusCounty
l-306C DurhamCounty
R-20809AWake County
R-20809AWake County
U-2524AB Guilford County
U-2524ACGuilford County
R-2248D
R-513CRobesonCounty
U-2524BAGuilford County
U-2519DA CumberlandCounty
U-3101CWakeCounty
11-00
11-00
11-00
09-00
06-03
After 2006Plans-i2/03
05-02
After 2006
After 2006
11-04
11-04
01-02
01-02
05-02
05-02
10-02
Des.
Bid
Bid
Bid
Des.
Des.
Des.
Des.
Des.
Des.
Des.
Des.
Des.
Des.
Des.
PD&E
Unknown
Brick
Pile Panelw/StoneFinish
Pile Panel
Pile Panel
Pile Panel
Brick
Concrete
Earth
Unknown
Unknown
Pile Panel
Pile Panel
Pile Panel
Pile Panel
Pile Panel
Unknown
19.4’ x 7,193’
16’ x 5,250’
16’ x 2,150’
? x 630m
? x 1,500’
15.9’ x 5,095’
3.4m x 1 20m
3.6m x 660m
8mx 3,950m
6m x 3,940m
1 2’-l 4’ x 4,130’
10’ x 425’
6m x 1,640m
6mx 1 ,920m
4m-6.5mx3,992m
Dan Mikkelson,City Engineer,P0 Box479, Salisbury,NC 28146P: 704-638-5200
Ron Allen, 1000 Birch RidgeDr., Raleigh,NC 27610
RogerThomas,1000 Birch RidgeDr., Raleigh,NC 27610
CathyHouser,1000 Birch RidgeDr., Raleigh,NC 27610
Kathy Lassiter,1000 Birch RidgeDr., Raleigh,NC 27610
GregBrew, 1000 Birch RidgeDr., Raleigh, NC 27610
RonAllen, 1000 Birch Ridge Dr., Raleigh,NC 27610
RonAllen, 1000 Birch RidgeDr., Raleigh,NC 27610
RonAllen, 1000 Birch RidgeDr., Raleigh,NC 27610
CathyHouser,1000 Birch RidgeDr., Raleigh,NC27610
CathyHouser,1000 Birch RidgeDr., Raleigh,NC 27610
ScottBlevins, 1000 Birch RidgeDr.,Raleigh,NC 27610
CathyHouser,1000 Birch RidgeDr., Raleigh,NC27610
CathyHouser,1000 Birch RidgeDr., Raleigh,NC27610
CathyHouser,1000 Birch RidgeDr., Raleigh,NC27610
Jimmy Goodnight,1000 Birch RidgeDr., Raleigh,NC27610
No projectsto bid, in Des.Or PD&E
Dept. OfRds.
No projectsto bid, in Des. Or PD&E
Continued on page 12
The Wall Journal January to May 2001 Issue No. 42 11
Th~N~i~B~rr~rCon~tru~ii~nF~re~~t Continued from page 11
StateDistrict!Region Location
BidDate Cycle Materils H X L Project Contact Info
NH Manchester/AuburnNH Rte 101
edford NH Route101
Manchester1-293
Manchester1-293
Manchester1-293
Manchester1-293
Manchester/AuburnNH Route 101
Manchester1-293
10/01
Unknown
04/01
04/01
04/01
04/01
10/01
04/03
Des.
Des.
Des.
Des.
Des.
Des.
Des.
PD&E
Concretepostsw/ wood panels
Concretepostsw/ wood panels
Concretepostsw/ wood panels
Concretepostsw/wood panels
Concretepostsw/ wood panels
Concretepostsw/ wood panels
Concretepostsw/ wood panels
Concretepostsw/wood panels
12’- 14’ xl ,737’
5’- 16’ x 1,600’
6’ - 27’ x 1,800’
11’ - 28’ x 1,770
10’- 21’ x 2,300’
13’ - 20’ x 1,350’
12’ - 20’ x 2,022
- 18’ x 1,650’
CharlieHood, P0 Box483, Concord,NH 03302-
0483 P: 603-271-3226,F: 603-271-7199
CharlieHood, P0 Box 483, Concord,NH 03302-0483 P: 603-271-3226,F: 603-271-7199
Charlie Hood,P0 Box 483, Concord,NH 03302-
0483 P: 603-271-3226,F: 603-271-7199
Charlie Hood,P0 Box 483, Concord,NH 03302-
0483 P: 603-271-3226,F:603-271-7199
CharlieHood, P0 Box483, Concord,NH 03302-0483 P: 603-271-3226,F: 603-271-7199
CharlieHood, P0 Box483, Concord,NH 03302-0483 P: 603-271-3226,F: 603-271-7199
CharlieHood, P0 Box483, Concord,NH 03302-0483 P: 603-271-3226,F: 603-271-7199
CharlieHood, P0 Box483, Concord,NH 03302-0483 P: 603-271-3226,F: 603-271-7199
NJ
HwyAuth.
1-80 (20)
1-80 (I)
1-80/95
No projectsto bid, in Des.or PD&E
Precast
Precast
Precast
18’- 22’ x ?
18’- 22’ x?
18’- 22’x ?
BobLee P:609-530-3813
BobLee P:609-530-3813
BobLee P:609-530-3813
NM CN2860- 1-40 10-00 Precast!PrestressedBarriers
12’- 15’ x23,000’
DennisValdez,7500 E. FrontageRd., Albuquerque,NM 87109P: 505-841-2712
NY 1
2
3
6
10
10
10
10
No projectsto bid, in Des.or PD&E
JuddRd. Rte.8 - Mid Set Rd.
No projectsto bid, in Des. orPD&E
1-290 YoungmanMemorial Hwy Amherst& Tona
Horseheads
Long Island Xway - Exit 36-40
SeafordOysterBay BetweenPSP&SouthernPkwy
Long Island XwayServiceRd. Exit 63 - 66
Long Island Xway ServiceRd.Exit 66-67
Winter -
00
Unknown
Unknown
12/00
12/00
07/02
12/02
Des.
PD&E
PD&E
Des.
Des.
PD&E
PD&E
ConcreteYet ToBe Detailed
Unknown
Unknown
Precast
Concrete
PrecastConcrete
PrecastConcrete
PrecastConcrete
S.Smx 650m
Unknown
3-4mx bOOm
6.1m x 3,532m
6.1m x 2,618m
5.4m x 300m
5.4m x 1 ,275m
PatriciaBliss, Regional Des.Eng.,207 GeneseeSt.Utica NY 13501.P: 315-793-2729,F:315-793-2400
SylviaJ. Jones,125 MainSt., Buffalo, NY 14203P:716-847-3421
Paul McAnany, 107 Broadway,Hornell, NY 14843,P:607-324-8438
Darrel I. Kost, StateOffice Bldg, VeteransHwy,
Hauppage,NY 11788P:516-952-6652F: 516-952-6939
DarrelJ. Kost, StateOfficeBldg, VeteransHwy.Hauppage,NY 11788P:516-952-6652F:516-952-6939
DarrelJ. Kost, StateOfficeBldg, VeteransHwy,Hauppage,NY 11788P:516-952-6652F: 516-952-6939
DarrelJ.Kost, StateOfficeBldg, VeteransHwy,Hauppage,NY 11788P:516-952-6652F: 516-952-6939
ND No projectsto bid, in Des,orPD&E
01-1 8
8
8
2
3
1
10
11
CLE-275-5-35
CLE/Ham-275-0-98/000
Ham/But-75-22-848/600
LUE - MaaumeeRiver
1-71 MedinaCo.
No projectsto bid, in Des.or PD&E
No projectsto bid, in Des.or PD&E
No projectsto bid, in Des.or PD&E
Westlake
Mentor
02-02
Jan-02
Unknown
FY 2003
S-DO
11-00
Summer-2003
PD&E
PD&E
Des.
PD&E
Bid
Des.
PD&E
Concrete/SoundAbsorb
Concrete/SoundAbsorb
Concrete/Lanscaping
Unknown
Concrete
Concrete
Unknown
Unknown
Unknown
Unknown
Unknown
20’ x 7000’
10’ - 16’ x 3400’
Unknown
HansJindal P:513-932-3030
HansJindalP:S13-932-3030
GregWiekensonP:513-942-4700
David L. Lewis, FE.,District Env. Coordinator317 E. PoeRd.,Bowling GreenOH, 43402F: 419-353-1831,F :419-353.1468
Ken Wright, Plan. Dept., 906 N. ClarkeSt., Ashland,OH 44805 P:419-281-0513F: 419-281-0874
Mark Alan Carpenter,S500TransportationBlvd.,Garfield Heights,OH 44125P:216-S81-2333 x448F: 216-581-8
Mark Alan Carpenter,SSOOTransportationBlvd.,Garfield Heights,OH 4412SP: 216-S81-2333 x448F:216-581-8
12 The Wall Journal January to May 2001 Issue No. 42
Pavement/TueNoiseContinued from page 9
through national organizations (e.g.,ANSI); through international organiza-tions (e.g., ISO) or other.
The results here were somewhat sur-prising (See Firgure 6) with TRB Al F04be the most selected answer by far.FHWA was a distant second. Of inter-
est is that one response to other cate-gory was a combination of multipleorganizations. This is an interestingsuggestion because although coordina-tion would be difficult, a better use ofresources may occur.
Question 7.What role should A 1F04 take
regarding pavement / tire noiseresearch in the U.S.?
For this question, the individualresponding to the survey was request-ed to check all that applied for the fol-lowing choices: the lead; supportgroup; information clearinghouse; for-mal point of contact; none; and, other.
A review of Figure 7 shows that theAl F04 Committee on TransportationNoise and Vibration of TRB should bea leader, have a support group, andfunction as an information clearinghouse. No respondent thought Al F04should not have a role in the process.
Question 8.Do you have other comments or
questions that you think should be dis-cussed at the TRB, A 1F04 summermeeting regarding pavement / tirenoise?
The responses to this open endedquestion were many and varied. Themajor points made were again that reli-able numbers are needed, life cyclecosts must be considered and safety
Continued onpage 14
Coordination Lead20
ci)Q) 15(a)C0ci.(I)a)~ 100
a).0
z
0
Figure 6. Coordination Organization
PRECAST SOUNDWALL SYSTEMSWITH
FINISHES ON BOTH SIDES
ReflectiveOr Absorptive
OptimumNoiseAttenuation
Array OfColors& Textures
WithstandsThe TestOf TimeFromNaturalElementsMaintainingFinish
&StructuralIntegrity
Impressive Features,Durability & Beauty
On Both Sides
Concrete Impressions ~A t~ eeolp,,esscoee,oeToth.’wA,e, me
1-800-383-2123www.concreteimpressions.net
Make An ImpressionOn Your
Motorists & Residents
The Wall Journal January to May 2001 Issue No. 42
Pavement/TireNoise AIFO4 RoleContinued from page 13
aspects should always be considered.One interesting comment about safetyaspects was that if a quiet pavementsurface is any less safe, should it everbe built?
Conclusions from Survey
Proven survey methods were usedduring the analysis of the survey resultsto help determine the general opinionsof the state DOTs as related to pave-ment / tire noise abatement implemen-tation and research. Seventy-two (72)percent of the respondents thought thatpavement types (and surfaces) shouldbe considered for noise abatement.The needed reduction, in the opinionof the state DOTs, on how muchreduction should occur before pave-
ment surfaces are considered duringabatement was 3.9 dB(A). It should benoted that this goal is being realized inmany parts of the world as reported inthe literature. Reliable data on whichto make decisions was a key need.
Continued onpage 15
Soundsolutionsfor the transportation industry.
14 The Wall Journal January to May 2001 Issue No. 42
25
~ 20a)U)C0~.15a)
1:
0
Figure 7 — A1fi)4 Role
Visit us on-line at
LWWW.THEWALLJOLJRNAL.COM
Pavement/TireNoiseContinued from page 14
Also in this upper echelon of needswas cost data, data on the longevity ofacoustic treatments, and maintenanceinformation. The general trend is thatresearch is needed for pavement / tirenoise (moderate) but it is not the mostimportant nor the least important.Respondents generally felt that Al F04should take the lead in coordinatingthis research, supply support to theDOTs, and work as an informationclearing house.
Implications of TheseConclusions
The first implication from this workis that Al F04 needs to take a lead roleto help coordinate the research effortin the United States. This process hasbeen started but the’ level of activityshould be increased ~if this abatementtechnique is to be used.
The second implication is that stateDOTs are reluctant to explore thisabatement technique because of a lackof solid numbers. Variances in resultsfrom the same pavement treatmentsand surfaces have been documented.Europe would seem to have more suc-cess in reducing noise using pavementsurface and types than the UnitedStates. As described in the recentlycompleted NCHRP synthesisl thiscould be a result of variances in mate-rials, workmanship, and vehicle types.The solution to this problem would beto first normalize all data taken wherepossible to better explore why the suc-cesses and failures have occurred.Second, the normalized data should beput into a larger data base to providemore reliable data. The data basewould also help to point out whereresearch dollars should be spent tosupplement the available information.A data base similar for that recentlydone to determine reference energymean emission levels for the TrafficNoise Model would provide muchmore reliability. This would allow
overcoming a major impediment to theuse of this abatement measure.
An observation during the review ofthe questionnaires is that there seemsto be a lot of mis-information amongthe DOTs. This again emphasizes theneed for information distribution. Thismis-information seems to be particular-ly true regarding longevity of theacoustic surface treatment. Thelongevity and cost issues need to bebetter explored. Consider the follow-ing. Research has shown that whilesudden changes can occur, in generalopen graded asphalt surface treatmentmay act like dense graded after aboutsix yearsof service. Is the cost warrant-ed for this increased noise reductionover the short life between resurfacing?If we assume that the “old rule ofthumb” that every additional 1.5 dB ofinsertion loss requires about one addi-tional meter of wall height, and thatthe average cost of a barrier wall in theUnited States is $1 74 per square meterthen if the minimum desired abate-ment goal of 3.9 dB(A) is reached, thenover $452 per meter of roadway wouldbe available for the second overlay. Bythe time the third overlay is due itwould be time for normal resurfacingor if trends continue, major reconstruc-tion. These type of details should notbe overlooked during cost analysis andthe “whole picture” needs to beexplored.
Also, development of pavement sur-faces continue and more abatement isneeded in many areas where barriersare not reasonable or feasible. Quieterpavement may provide help and workin coordination with other abatementmeasures.
Ascanbe seenfromthisdiscussion,more work is neededon thispossibleabatementmeasureofthe future.
t’u’asoisound performance
www.durisol.com
TransportationResean~hBoardand
CanadianAcousticalAssociation
To Co-SponsorAcousticsConferencein Canada
October1,2and3,2001
The AcousticsConferenceinCanada2001 will be held at theNottawasagaInn locatedin
Alliston, Ontario, which is approximately45 minutes to an hour from the TorontoAirport. The conferencewill commenceon Monday October 1, 2001 andend onWednesdayOctober 3, 2001. Membersof theCanadian AcousticalAssociation(CAA) locatedin the Greater TorontoAreawill organizetheconferencespon-soredby the CanadianAcousticalAssociationwith the TransportationNoise sessionsCo-Sponsoredby theTransportation ResearchBoard (TRB).
The following technical areas arepro-posedto be included:
Industrial NoiseBuilding AcousticsandVibrationOutdoor SoundPropagationSpeechPerceptionOccupational Hearing LossHearing ProtectionAcoustic MaterialsUnderwaterAcousticsPhysiologicalAcousticsSoundQualityLegislation/Environmental NoiseComputerApplicationsCanadianStandards InstrumentationTransportation Related NoiseandVibriationCommunity Noise
Musical Acoustics
The emphasisfor the 2001Conferencewill beto ensurethat allareasof acousticsare represented.Thesessionswill include openingplenarylec-tures, invited andcontributed papers,panel discussionsand exhibits. In orderto ensurethat all areasof acousticsarerepresentedthe technical chairs are put-ting together a groupof highly skilled
Continuedon page 16
The Wall Journal January to May 2001 Issue No. 42
Continued from page 15
and motivated individuals to act as ses-
sion chairs. Theycan only be successfiilif the membership, including students,attend the conferenceand presentpapers.
AbstractsAbstracts of amaximumof 250 words
must be submitted by June 1, 2001.Theabstract shouldbe prepared and sent inaccordancewith the instructions appear-ing in this issueof CanadianAcoustics.
Submissionby e-mail is strongly encour-aged; files can be prepared in any wordprocessingsoftware. For thosewithoutaccessto e-mail, digital files on diskette
or papercopyshouldbemailedto theaddressgiven beiow. Notification ofacceptanceof abstractswill be sent to theauthors by June 20, 2001 along with aregistration form. Summarypapers aredue by July 31, 2001. This deadlinewillbe strictly enforced in order to meetthepublication scheduleof the proceedingsissueof Canadian Acoustics.
StudentsStudent participation at the CAA
2001 Conferenceis strongly encouraged.Awards areavailable to studentswhosepresentationsat the Conferencearejudged to be particularly noteworthy. Toqualify studentsmust apply by enclosingan Annual Student PresentationAwardform with their abstract. Students pre-sentingpapers may also apply for atravelsubsidy to attend the Conferenceif theylive at least 150 km from Alliston,Ontario. To apply for this subsidy, stu-dents must submit an Application forStudent Travel Subsidyincluded in thisissue.
AccommodationsAccommodationsand meetingspace
for the delegatesof the 2001 Conferencewill be at the NottawasagaInn(www.NottawasagaResort.com)locatedjust north of Toronto, Ontario. The
Conferencerate will be $110.00pernight. To reserveyour accommodation,pleasecontactthe Inn directly at (416)364-5068.
It is important to note that the roomsare only guaranteedfor the CAAConferenceup to July 1, 2001.After thatdate the rooms are subject to availability.This is extremelyimportant becausethere are not many alternative accommo-dations in the area.
ExhibitsA permanentexhibition showcasing
the latest technologyin acousticsandvibration equipment, instrumentation,materialsandsoftwarewill be opencon-tinuously during the Conference.
Spacewill be available for exhibits bycompaniesand organizations in the field
of acoustics.Sponsorshipof the breaksand/or lunches is also welcome.If youare interested in either of theseopportu-nities pleasecontact Dalila Giusti.
Important Dates
June1, 2001Deadlinefor submissionof abstracts
June20,2001Notification of acceptanceof abstracts
July1, 2001Deadline for guaranteedrooms
July31,2001Deadline for receipt of summary
papers& early registrationOctober1 to 3, 2001
Acoustics Conferencein Canada 2001
Conferencechair:Dalila Giusti, Jade AcousticsInc.545 North RivermedeRd. Ste203Concord, Ontario L4K 4H1(905) 660-2444,Fax: (905) 660-4110e-mail: [email protected]
Technical chairsTim Kelsall, Hatch AssociatesLtd.45 Meadowcliffe Dr.,Mississauga,Ontario,
Canada L5K 2R7(905) 403-3932,Fax: (905) 855-8270e-mail: [email protected]
andAlberto Behar,NoiseControl2800 SpeaknianDr.Scarborough, Ontario, Ml M 2X8Tel/fax: (416) 265-1816e-mail: [email protected]
Transportation Noise sessionschair
Soren Pedersen,TheWall Journal26 Warrender Aye,
Etobicoke, Ontario, CanadaM9B5Z2
Telephone (416) 231-4514,
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16 The Wall Journal January to May 2001 Issue No. 42
f TRANSPDRTA11DN RESEARCH BC3ARD CDMMrrrEE Al F04 NEwS 1Mike StaianoReceivesHarter Rupert Award for BestPaper
Special Report from the 80thAnnual Meetingof the TRB
January7-11, 2001,
Washington,DC.
M Ike Stainao was honored atthe Al F04 committee’s annu-al dinner in Washington DC,
as this year’s recipient of the HarterRupert Award for the best paper ontransportation-related noise.Congratulations Mike!!!
Entitled “Comparison of Light-Railand Bus Transit Noise ImpactEstimates per FTA and APTACriteria”, the paper examines theGeorgetown Branch Transitway! Trailwhich was proposed as a combinedtransportation facility and hiker/bikertrail using a former railroad right-of-way. The Transitway would link theBethesda and Silver Spring, Md. cen-tral business districts and be developedby the Maryland Mass
Transit Administration (MTA) togeth-er with the Montgomery Co.Department of Transportation. At thetime of this evaluation, three alterna-tives were considered:
o Railway serviced by light-rail vehi-cles.
o Busway serviced by diesel buses,or
o Busway serviced by dual-propul-sion (electric motor/diesel engine)buses,
The origin of the Transitway propos-al dates to 1985 when CSX, which hadbeen using the Georgetown Branchline for freight operations since 1910,announced the cessation of service.Montgomery Co. acquired the right-of-way in 1988. The Montgomery CountyCouncil in 1989 approved the com-bined trolley/trail use of the right-of-way. Work was begun on the projectby MTA in 1990 but was halted due to
budget constraints. In 1994, the studieswere reactivated by MTA with theintent of obtaining federal funding--necessitating the preparation of a DraftEnvironmental Impact Statement(DEIS). The initial environmental noiseevaluation was performed using theAmerican Public Transit Association(APTA) Guidelines. When workresumed, the Federal TransitAdministration (FTA) GuidanceManual was available. Consequently,noise impacts were assessed via meth-
ods from both documents to maintaincontinuity with previous work.
Continued on page 18
Mike Staiano receivingthe HarterRupert Awardfor BestPaper for 2001 during the TRB meet-ing in Washington, DC.
t)uizisoiabsorbtionwith style
(905)521-0999
The Wall Journal January to May 20&1 Issue No. 42
TRB A 1 F1J4 NEws C~nt~kvipa~e77
Rudy Hendriks Awarded Official TRB Emeritus Status
Rudy Hendriks (left) receivinga token ofappreciation from GreggFleming (right) dur-ing the award ceremony
D uring the main committee sessionon Thursday, TRB officials immor-talized long-time AlF04 committee
member Rudy Hendriks. Rudy was provid-ed official TRB emeritus status. Some ofRudy’s many accomplishments are listed inthe letter that was drafted on behalf of thecommittee by Keith Jones. This letter alongwith the committee’s unanimous vote (infavor) led to Rudy being awarded TRBemeritus status. Rudy joins GrantAnderson and Eric Stusnick as the commit-tee’s only members with emeritus status.
Anyone wishing to nominate other indi-viduals for emeritus status should contactGregg Fleming at (617) 494-2372. As a com-mittee, Gregg has established a goal ofnominating at least one member each year.
GreggFleming A 1F04 Chairman
T RB will hold a researchneeds
conferencein the fall of 2001.As you know, very few com-
mittee members have been able toattend past conferences.Consequently,I think it is importantfor us as a committee to have ourstatementsin fairly good shape prior
to the fall conferencesoattendeescanbestrepresent the committee. You will seethisreflected in the attached material. Alsoattached, you will find severalstatements
as they currently exist. Note the com-pletenessofthe attachedstatementsarebyno meansconsistent,but I have included
them to assist folks in preparing com-ments for the Summer meeting in NewOrleans. If you have any suggestionsforimprovements, pleasesubmit them to me
before July 1, 2001, if you are not attend-
ThomasL Weck August24,2000TRB Section F Chai~on
DearMr. Weck,
It is a pleasurefor theCommitteeA1FO4, Transportation-RelatedNoiseandVibration, oftheTransportationResearchBoard(TRB), tonominateMr. RudyHendrilcs for EmeritusMembership.Mr.Hendrikshasbeenanactiveparticipantfortwo decadesin TRB noisecommitteeactivities. During thisperiodhis conscientiousapproachhasnotonly resultedin numerouscontributionsto theCommitteebutalso tomanyrelatedtransportationnoiseresearchandpolicy activitiesthroughoutthe UnitedStates,particu-larly in theStateofCalifornia. It shouldbementionedthat his contributions have beenconsistentlyofhighmerit, stringentlyobservingthebasicprinciplesofscimtific investigation.
In the last 20 years, Mr. Hendriks hasbeena regularparticipant at theTRE annualmeetings,aswell asthesummer meetingsof A1FO4. Following are examplepresentations,papers and other activitieshe has par-
ticipated in orprovided under theaegisof TRB:
“Active NoiseControlTests”,73rd Annuai MeetingoftheTransportation ResearchBoard, Januai3
r
1994,1992Field Evaluation ofAcousticalPerformanceof ParallelHighway NoiseBarriers in California. It
waspublished in Transportation ResearchRecord1366,“Heavy Truck NoiseEmission Levelson Gradesin California”, 65th Annual Meetingof the
Transportation ResearchBoard, Januasy1986. It waspublished in Transportation ResearchRecord1058.“CaltransExperienceswith EarthborneVibration” (with Harano M), 64thAnnual Meetingof the
Transportation ResearchBoard, January 1985. . It waspublished in Transportation ResearchRecord
1033.“CaliforniaVehide NoiseEmissionLevels” 64thAnnualMeetingoftheTransportation ResearchBoard,January 1985. It was published in Transportation ResearchRecord10331982Evaluation ofNoiseBarriers.(with Harano M), It was publishedin Transportation Research
Record865.“Measuring ExcessAttenuation of Traffic NoiseDue toGroundEffects, or In search ofthe Elusive
Alpha”, 1993summermeetingJuly!1-14, 1993,Berkeley, California.
As anAssociateTransportation Engineer at California Departmentof Transportation(Caltrans), Mr.Hendriks, in addition to playing a key role in a number of educationalstudiesin the area oftransportation.related noise,wastheauthor ofthe TechnicalNoiseSupplementthatwas published along with TrafficNoiseAnalysisProtocol by Caltrans.
Mr. Hendeiks is regarded by his peersas a premier researcherin thefield oftransportation.relatedacoustics. He haseagerlysharedhis inexhaustivecreativity,methodsofinnovationandscientificrigorwiththeTIllS Noisecommunity. On behalfofcommitteeA1FO4, it is my truepleasureand privilege to nomi-nateMr. Rudy Hmdriks for theTRB EmeritusMembership.
If you anyquestions regardingthisnomination, pleasecontactme at thetelephonenumber listed below.
ResearchNeedsStatementsto be Readyby Fall 2001
Continuedon page 19
18 The Wall Journal January to May 2001 Issue No. 42
TRB Al F04 NEwscbnlinLdnm1pa,,~e19
ing the meeting.
A1FO4 RESEARCHNEEDS
STATEMENTS (DRAFT)I. HIGHWAYNOISEThe following presentsa compilation ofproposedresearchneedsstatementsrelat-ed to the subjectofhighwaynoise. Thiscompilation includes 1) needsalreadyidentified in the last TRBConferenceonEnvironmental Research Needs inTransportation hdd in November,1996,but not yetaddressed,and2) newlypro-
posedneedsstatements.
Carry-over Items from 1996ConferenceReport
1. Atmospheric Effects on HighwayTraffic NoisePropagation
Problem Statement: With the immi-nent release of the Federal HighwayAdministration’s Traffic Noise Model(FHWA TNM), atmospheric effectsremain the largestsourceof error in high-way noise modeling. The absence ofatmospheric effects in the TNM degradethe accuracy of predictions directly(through refraction) and indirectly, sinceatmosphericsare interrelated with groundeffects, as well as noise barrier insertionloss.
Research Objective: The objective ofthis research is to develop appropriatealgorithms that can be included in the
TNM to allow for more accuratemodel-ing of atmosphericeffects onnoisepropa-gation.2. Benefits of Reduced Vehicle Noise
(This is to be incorporated into needsstatementre: tire noise)
Problem Statement: Traffic noise isbothersome to adjoining uses and is apoint of resistancein expanding roadwaycapacity. Noisemitigation currently con-sists of noise barriers, with varying effec-tivenessand questionableaestheticconse-quences.
ResearchObjective: Identify and meas-ure the benefits of quieter vehicles.Technologyexiststhat could be employedto produce significantly quieter vehicles.
If a substantial portion of the fleet weremade quieter, traffic congestionwouldbecomelessbothersome, a broader rangeof adjacent uses would be appropriate,
and noise barriers would not be needed.Information on these and other factorswould be useful in the eventof considera-tion of a new noise standard for vehicles.3. Defining Substantial Noise Impacts(This topic has apparently beenaddressed)
Problem Statement: In addressingnoise impacts of proposed highway proj-ects, substantial increases must beaddressed. However,FFIWA has no crite-ria to define substantial increases. TheStateHighwayAgencies(SHAS) have var-ied values.
Research Objective: Assess howFHWA’s Washington, Regional, andDivision Offices define substantialincreasesin noise. Also, review the SI-IAcriteria. Make the information available,perhaps to obtain a consensuson a range
of dB increasesto causeaconsideration ofabatement.4.Measurementof the Effect of HighwayNoise Barriers on Air PollutantConcentrations
Problem Statement: Air pollution andnoisefrom highways are transported intothe adjoining neighborhoods. Barriershave been and are being installed toreduce the noise levels. These barriersalso have an effect on the transport of airpollution into the adjacent neighbor-hoods; however, the magnitude of theinfluence of thesebarriers has not, to ourknowledge, been measured.
Rrsearch Objective: Measure air pollu-t:uln concentrations (i.e., carbon monox-
ide) on both sidesof selectednoisebarri-ers and, preferably, obtain concentrationdata for thoseareas before the noisebarri-ers were installed. The CO concentrationwould be measuredvia bagsampling (i.e.later analysis by non-dispersive infrared
spectroscopy) and battery-operated sam-pling pumps. The measuredCO concen-trations could be comparedwith existing
air pollution dispersion models to deter-mine what modifications would be
required of these models to take intoaccountthe installation ofthe noise barri-ers. Also, it would be possibleto incorpo-rate the measurementof noise levelsinto
this researchproject.5. Mitigation of Nighttime Construction
Noise (Clarification of specific areasofneed is required; i.e. identification ofsources,mitigation, noiseand vibration?In addition, referencewas made to an
nchrp synthesis report as a possibleresource.)
Problem Statement: Many states per-form constructionwork at night to reducetraffic congestion.Noisefrom theseactiv-ities significantly affect nearby residentsin urban areas.
Research Objective: Determine cost-effective, temporary methods to reducenoise from construction operation andequipment-especially “impact” type con-
struction methods.6. Noiseand Vibration Monitoring Priorto, During, and After Construction (Arevised statement will be submitted byMr. WinLindemanon this topic - seeendlist.)
Problem Statement: Many times, noiseand vibration are monitored and/or pre-dicted during the E.I.S. process duringconstruction. After construction, noiseand vibration are not consideredunlessacomplaint is registered.
Research Objective: Review and cata-logue existing methodologiesfor quanti-fying and assigning values to wetlandattributes. Make field investigations,
apply the methodologies,make pre- andpost-construction evaluations, and com-
pare the methodologies.7. Physics of Noise Within the UrbanHighway Center (abridged from 1996report)
Problem Statement: The number andtypes of vehicles traveling our highwayshas created a corresponding increase ofnoise generated. Noiseabatement tech-niques have been developedto reduce theimpacts of noisegenerationwithin trans-portation corridors. The continuingincreaseof noise within the corridor hasbeen considered too complex to modeleffectively in three-dimensional space.The transportation corridor is traditional-ly treated as two-dimensional rather than
a three-dimensionalspacefor noiseabate-ment engineering. Research is neededtocharacterizethe dynamicsof highwaycor-ridor noise. This researchwould analyze
the physics of urban highway noise as toits typical specific componentsand their
frequency,intensity, pitch, andduration.Analytic characterizations of noiseshouldconsider highway corridor itself as three-dimensionalspaceoverlapping contiguousproperty. Thiswould beasimilar model-ing approach to air pollution studies
Continued onpage 20
The Wall Journal January to May 2001 Issue No. 42 19
TRB Al F1J4 NEwsci~nu~dncvnp~ge19
assessingpollution indices extendingbeyond the highway corridor.
Research Objective: The investigationof urban highway noise physics wouldinclude: 1) Empirical measurementandcharacterization of componentnoisesgen-erated within urban transportation corri-dors using selectedcorridors with a vari-ety of typical noise abatementtreatmentsin place. Measurementswould be con-ducted both at ground level and aboveground to establish the three-dimensionalphysics of the soundwaves.2) Identifying
theelementsof the noisegeneratedwhichhave greatest potential for abatementresearch, those which have the leastopportunityfor control beyond thosereg-ulations currently in force, and thosewhich havethe most enduring effectwhen
reduced. 3) Creation of a “noise sourcemodel” for the type and duration of the
noise components identified, treatingthem as sound waves spreading dynami-cally through spaceas a function of time.
4) Utilization of a spatial informationmodeling system to develop dynamicmaps of componentsound wavesmovingthrough space. Noise abatement proce-dures would be modeled as surfaces ofvaryingdegreesof “roughness” which thesoundwavesflow.8. Projected Traffic Volume andAttendance Noise Level Verification(The consensusof thegroup was to dropthis statement.)
Problem Statement: State HighwayDepartments and TransportationAuthorities are constructing increasingnumbers of noise barriers to mitigate
highway project impacts. The design isbased, in part. on traffic volumespredict-ed to 20 years beyond construction. Arethe predicted levelsaccurateand if so, are
the correspondingnoiselevelsaccurate?ResearchObjective: Conduct literature
review of traffic prediction verificationsfor interstate highway projects. Conducttraffic volumeand mix classifications oninterstate highways which are in opera-tion at least twenty (20) years andcom-
pare the results j volumes predicted inthe design phase.~If possible,this shouldbe done where noise barriers have beenconstructed so the predicted traffic vol-
umesand noiselevelscan,becomparedto
20
actual counts and readings. The study’sgoalwould be to determineif our predic-tion methods are reliable, or to identifywhat factors should be modified toimprove prediction technology.9. Using RecycledMaterials in NoiseWallConstruction
Research Objective: Develop a guid-
ance manual for municipalities and smallbusiness enterprises to promote thegreater development and utilization ofcommonlyavailable andrecycledmateri-als as noise barriers. The manual shouldinclude adescription of materials suitablefor use as barriers; discuss methods forforming materials into suitable shapesforuse as barriers; and provide a guide oncostcomparison to aid selection.
New Items1. Highway Traffic NoiseEmissionsfromthe Underside of Bridge Structures
Problem Statement: Receptors adja-centto bridge structuresare often subject-ed to undesirable noise levels even afternoise barriers are constructed on thestructure. It is unclear whether suchemissionsare causedby vibration of thestructure deck, and whether differentstructure designs(open beam, box girder,reinforced concrete slab, etc.) may be afactor. The problem is to determine themechanismsand/or sources of the noiseemissions,and if there are ways to miti-gate the situation. A related side issuerelatesto the degreeof influence that mayexist due to the openmedian areabetweenparallel bridges, and how this may influ-enceoverall levelsas well.
Research Objective: Determine thesourceor sourcesof noise/vibration emis-sionsfrom bridge structures, and quantifydifferences that may be associatedwithvarious bridge designs. Determine feasi-ble mitigation measures, which may
include a determination of the bestdesignapproachesto minimize structure noise.
Submittedby: HarveyKnauer,EnvironmentalAcoustics
2. Method for In-Situ Testing of NoiseBarrier SoundAbsorption Qualities
Problem Statement: During the con-struction of a noise barrier, the quality
and physicalcharacteristicsof everycom-ponent that arrives or is constructed onsite, can and usuallyare verified by theowner. This verification can take theform of either visual examination, struc-
The Wall Journal January to May 2001 Issue No. 42
turalcalculations,or labtesting. Theonlycharacteristic assumedto meet acceptancecriteria without testing on a regularbasisis sound absorption. This property isusually only verified by lab testing when
the product is introduced to the agencyfor initial acceptance.Ideally, it would bepreferable to be able to test soundabsorp-tion of awall systemfor eachinstallation.This can not be done currently in the
absenceof an efficient and effectivemethodof in-situ acousticaltesting,eitherat the manufacturing plant, as product is
delivered, or after installation. An in-situtesting methodwould also assistin moni-toring the performance of installed soundabsorptive barriers as they age,and couldserveas a tool to detectearly deteriorationof absorptive materials.
ResearchObjective: Developan effi-cientand effectivemethodfor field testingnoisebarrier systemsfor sound absorptionqualities.
Submittedby:SorenPedersen,The Wall Journal
3. Develop Standards for Tire/NoiseCharacteristics of Pavements
Problem Statement: There have been
at least6-9 dBA differencesin pavementsbasedontheir characteristics. A draft ISOstandard has been developedwithout anyUS testing. There is no standard tire fornoise testing. Quiet pavements can bedevelopedwithout affecting skid resist-ance.
i~esearchObjective: Developstandardsfor testing and characterizing tire/noiseproperties of pavements.
Submittedby: MichadMcNerney,UniversityofTexas
4. Tire/Road NoiseTire/road interaction noise is the pri-
mary source of noise at highway speedsfor passengercars and trucksandone oftheprimary causesof environmentalnoisein cities. European trials, which havecon-
centrated primarily on pavement solu-tions, have found that a 10 dB reductionin noise generationis possiblewith some
advancedporous highway and rubberizedhighway concepts. This eliminates orreduces the need for noise barriers andwill reduce public resistanceto futureincreasesin highwaydensity.
Europeantechnologyis still indevelop-ment to improve durability and furtheroptimize the noise reduction effect. In
Continued on page 21
TRB Al F04 NEwsGitinuedñmipage19
parallel, US researcheffort is required to:o Adapt European technology to the
US. European approachesdo not directlytranslateto US constructiontechniquesor
durability and safety standards.Adaptationandtestingof theseapproach-esfor US applicationis needed.
oThere is potential additional benefitin looking at the fundamentals of tirebehaviorandtire/roadinteractionto bet-ter understandnoisegenerationto furtheroptimize tire/road behavior to reducenoise. Betterunderstandingof thenoisegenerationmechanismis required.
Submittedby Bob Bernhard,
Purdue UniversityInstitute forSafe,Quiet, andDurable Highways
5. Title: Highway Construction Noiseand Vibration Impact Criteria andMitigation techniques
Problem Statement: Most stateDOTsaddress construction noise andvibrationimpacts on a case by case basis as theyarise, usually during the constructionphase. It is desirable that early identifica-tion andmitigation for potential impactsbe addressedin theProject
Developmentstage. However,specific
criteria to identify potential impacts havenot beendevelopedon anational or inter-national basis. Therefore, researchneedsto be conducted to addressthis void.
Research Objective: The objective ofthis research project would be to reviewexisting highway construction noise andvibration impact criteria that are beingused throughout the US andother coun-tries andthen proposea setof criteria thatcan be applied uniformly across the US,similar to the NAC developedby FHWAfor traffic noiseimpact assessment.
Submittedby: WINLINDEMAN,Florida DOT
6. Highway vehicle sourcenoisedistribu-tion (i.e., expansion of Florida AdanticWork)7. TNM performance improvement withirregular terrain
Submittedby:Mike Staiano,StaianoEngineering
8.Jake brake data synthesisSubmittedbyMikeStaiano,StaianoEngineering
II. RAIL NOISE
1. Transfer Mobility Test MethodsFor example, we have found that you
can get awaywith a relatively low coher-ence in transfer functions and still havegooddata as longasyou havea large num-ber of averages. That is, how low can thesignal be in the noise floor and still beacceptable? In addition, we have beenthinking about using shakerswith aswept-sinesignal or the use of MLS orother modern signal processing tech-niquesasalternativetest methods
SubmittedbyDaveCoate,Acentech
2. Locomotive Warning Horn NoiseCriteria Development
Acentech and several other consult-ing/researchgroups have beenworking onmajor railroad merger projects over thelast severalyears. In particular,Acentechworked on the Union Pacific/SouthernPacific Merger and conductedthe follow-on noise mitigation studies in Wichita,Kansasand Reno, Nevada. Major con-
cernsregarding locomotivewarning hornnoise were raised in these two cities.Recently we completed the ConrailAcquisition ElS-one of the largest noiseElS efforts to date-thestudy areawas theeasternhalf of the U.S. More recently we
worked onthe Canadian National/IllinoisCentral and the BNSF/CN Merger. Thespecific noise issue at the heart of these
studies is locomotive warning hornsoundings at grade crossings whereincreasesin train traffic (hence horn
soundings) could cause a noise impact.The distance to the 65 dBA Ldn noisecontour can extend as far as 500 to 1000feet from the grade crossing and canencompassalarge number of homes.TheSurface Transportation Board (STB-the
oversight agencyfor these mergers) cur-rently usesanoiseanalysisthreshold of65dBA Ldn and a 3 dBA Ldn increase.However, the STB environmental rulesdo not refer to this threshold as a thresh-old for significant noise impact. Duringthe courseof our studies,we were askedby the STB to research if thesecriteriacould be used to determine significantimpacts, or if another more suitable crite-ria should be used. The FAA usesa 1.5dBA Ldn
increaseat 65 dBA Ldn as significance
criteria. The 1.5 dBA Ldn increase isbased on a 3 percent increase in peoplehighly annoyed. We applied the same3percent increase to the rail “Schultz”
curvesat 65 CIBA Ldn and found that theallowableincreasewould rangefrom 2 to
4.2 dBA. That is, thedose-responsedatadoes support the premise that railroadnoise is lessannoying than aircraft noise,
and also supports the 651÷3dBA Ldnthreshold currently usedby STB.
We reviewed the does-responsedatauponwhich the Schultz curve and its vari-ations are based and none included loco-motive warning horn noise. We thinkthat is a major gap in the supportingresearch for these merger projects. Itcould be, for example, that the “startle
effect” of thesehorns would result in a 1dBA allowable increase. Or perhaps theLdn is the wrong metric to use. Webelieve that a comprehensiveattitudinalsurvey/noise measurement programshould be conducted to address theseissues
SubmittedbyDaveCoate,Acentech3. Vibration “Schultz” CurveDevelopment
Acentech has been conducting vibra-tion studies for the MBTA to address
recent claims of increasedvibration byBeacon Hill residents in Boston. The
MBTA uses a prioritization method torankorder mitigation effectiveness/severi-ty of the problem for the Red Line, BlueLine, and Attelboro Commuter Line. Averyimportant keypoint in theseretrofit(analogousto theType II studiesfor high-way noise) projects is the determination
of the mitigation effectiveness,or “bangfor the buck.” The noisemitigation prior-itization is relatively straightforward sinceit relies on the well-established “Schultz”curve for noise. However, a well-estab-lished dose-responsecurve does not existfor vibration. Intuitively, people’s reac-tion to vibration should be analogoustonoise--i.e.,energy should correlate betterwith annoyance than maximum level.
However, existing vibration standards aresimply based on maximum level. Wethink that this constitutesa major hole inthe supportive researchfor the transporta-
tion noiseandvibration field. We recom-mend that a comprehensive attitudinal
survey/vibration program be conductedtoprovide this neededbasicresearch
SubmittedbyDaveCoate,Acentech
4. Data synthesis for vibration insertionloss afforded tie and ballast trackwork
Cbntinued onpage 22
The Wall Journal January to May 2001 Issue No. 42
TRB Al F04 NEwsOlffnLLd/Iompa.ge 21
with ballast mats,tie boots, and trenchesSubmittedby Mike Staiano,
StaianoEngineering5. Tire Shreds for Ground VibrationControl
SubmittedbyJim Nelson, WilsonIhrig6. Effects of Wheel Hardness andMetallurgy on Wheel Squeal Noise
ControlSubmittedbyJim Ndson, Wilson Ihrig
7. Incorporation of Rail NoisePredictionin TNM
SubmittedbyJim Ndson, Wilson Ihrig8. Effectivenessof Quiet Zones
Submitted by Jim Nelson,Wilson Ihrig9. High Speed Train Wheel/Rail NoiseControl
SubmittedbyJimNelson, WdsonIhrig10. Rail Corrugation NoiseControl
SubmittedbyJimNdson,Wilson Ihrig11. Update of Attitudinal Response toWheelRail Noisein Transit Corridors
SubmittedbyJim Nelson,Wilson Ihrig12. Wheel Rail SquealSubmittedbyJimNelson,Wilson Ihrig
HI. AIRCRAFT NOISE1. Researchon Helicopter noise impactsto the community
Helicopter and tiltrotor aircraft present
more complex noise characteristics thando fixed wing aircraft. This complexitydirectly impacts the manner in whichtheir noise must be modeled. Part of thecomplexity is the highly directional natureof the generatednoise. For instance theadvancing side (side on which the rotor ismoving forward) is usually louder thanthe retreating side (side on which therotor is moving backwards). Also rotarywing noiseis dependenton the flight con-dition, suchas descent,and the resultantblade-vortex interaction (BVI). BVI pro-duceslouder levelsforward of the aircraftthan to it’s sidesor rear. Current aircraftnoise models, such as the FAA’sIntegrated Noise Model (INM), theMilitary’s NoiseMap, and the FAA’sHelicopter NoiseModel (HNM), do notinclude these important dependencies.NASA’s Rotorcraft NoiseModel (RNM)does include these characteristics if it isreflected in the source noise data that is
inputted into the program. The RNMsourcedata requirements are significantlymore complicated than those for fixedwinged aircraft. Thus, research isrequired to develop sourcedata for rotarywing aircraft so that their unique noise
characteristics can be appropriately mod-eledand their noise impacts can be prop-erly accounted for in community noiseimpactsassessments(Submitted by Micah
Downing, Wyle Labs).2. Enroute AircraftNoise
SubmittedbyNealPhilips,MWAA3. Low Frequency Noise (dose response,criteria, etc.)
Submitted by Grant Anderson,HMMH4. Low Level Noise MeasurementandImpact Criteria beyond65 dB DNL
Submittedby Micah Downing, WyleLabs5. Reverse Thrust noise and directivitybehind start of takeoff roll
Submitted by Mike McNearny,University of Texas
6. Aircraft sourcenoise reduction7. Using GPS to reduce aircraft noiseimpacts
8. Useof newrouting structures and oper-ational proceduresto reduce aircraft noise
IV. OTHERPLACEHOLDERS1. Land use compatibility
2. National park noiseneeds3. Definition of LAeqlhr criteria for off-
peak periods (e.g., evening, night, andearlymorning)SubmittedbyMikeStaiano,StaianoEngineering
4. Simple construction site noise predic-tion procedure (e.g., TNM geometryinput interface with simpler propaga-
This year’s annual summer meetingwill be held at the Omni RoyalOrleans Hotel right in the heart of
the French Quarter. A block of roomshas been reserved for meeting partici-pants at a special rate of $89.00 plus taxfor single and $99.00 fordouble accom-modations, per night. The rate and roomavailability are guaranteed up to June20, 2001 - so please make your hotelreservations early and be sure to men-tion that you are attending the “TRBConference.” For reservations call 1-800-THE-OMNI or 504-529-5333.
Anyone interested in either attendingthe meeting, securing exhibit space orsponsoring special events (breaks,reception, lunches, etc.) are asked tocontact Andrea Goldstein at theVolpe Center at (617) 494-2018 as
soon as possible since opportunities arelimited. Those wishing to provide pres-entation of papers are asked to contactMall Murello of Lewis S. Goodfriend& Associates at (973) 560-0090
This year, barrier manufacturers, sup-pliers and contractors are invited to takepart in a very special “Virtual NoiseBarrier Tour” and give presentations onacoustical and non-acoustical issues andtheir experiences related to barrier man-ufacturing, construction, and mainte-nance (an open panel discussion wouldfollow). This Virtual Tour will be hostedby Soren Pedersen (The Wall Journal)and Harvey Knauer (EnvironmentalAcoustics, Inc.) Anyone interested inpresenting are asked to contact Soren formore details at (416) 231-4514.
TRB A1FO4 COMMITTEE 2001 SUMMER MEETINGNew Orleans, Louisiana - July 22-25, 2001
For the latestin formation on thesummer meeting,
visit theThe Wall Journal atwww.thewafljoumal.com
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22 The Wall Journal January to May 2001 Issue No. 42
. COLLABORATION - THE NEXT STEP IN e-COMMERcE by Steven Desrocher JNobody can complain that information
isn’t available. There is now somethinglike 1.5 billion pages on the web -
enough information tofill a bookshelf morethan1,300 kilometres long. And that does not countthe vast number of pages in the hidden web -
pagesnot yet catalogued by search engines. No,information is decidedly not the problem.Finding the right information is something else.
The information highway is paved with goodintentions. What it really needs are some goodroad maps. And that’s where collaborationcomes in.
Creating the Map: When The RoadAuthority (also known as TRA) was first estab-
lished by Ontario Good Roads Association in1997, its role was that of an information portal -
a point of entry to the world wide web wherecustomers and suppliers could exchange infor-mation about products and services for publicworks.
It was, says Steve Desrocher, who managesThe Road Authority a much-needed service.Members could search for information on, say,guide rails, and find not only technical informa-tion and standards but also a list of memberssupplying the product with links to their websites.
“People need information that is pertinent,”claims Desrocher. “It’s fine to do a search on theweb for information about asphalt cement sup-pliers. Not much use to find that the supplier isin Australia. Using TRA, our members wereconfident that our database had products andservices designed to meet Ontario requirements- information that they could act on.”
When TRA first went live, it averaged nomore than 20 hits a day. By 1999, The RoadAuthority had 1,200 members and was receiv-ing up to 50,000 hits a year.
Next Step - Collaboration: Informationportals do a good job of providing access toinformation but make few claims about theapplicability of the information.
By the middle of 2000, The Road Authorityrecognized that it now had the critical massneeded to take information management to thenext level.
‘There’s almost too much information avail-able, certainly too much for any one person ororganization to assimilate,” says Desrocher. “Theidea of collaboration makes a lot of sense. Iforganizations with a common interest sharetheir knowledge and experience, it becomes amuch easier job to pull the best informationtogether.”
With the private sector already on board asmembers, The Road Authority was now readyto link up municipal users. Four regional munic-ipalities (Durham, Peel, Halton and York), threecities (Toronto, Mississauga and Brampton) andthe Ontario Ministry of Transportation have
agreed to use the system.The Road Authority will now act not just as a
portal through which customers and supplierscan exchange information but also as a deposi-tory for testing, standards and relevant technicaldocuments within a comprehensive database.
A municipality, for example, will now beable to maintain its own supplier database onThe Road Authority’s server and link those prod-ucts and services to relevant technical specifica-tions and approval lists. Using this information,the municipality can manage the complete pro-curement cycle from searching for suppliers topurchasing on-line.
Products and services on the MTO’sDesignated Sources of Material list are automat-ically included in the approved suppliers list.Suppliers can also request that the OntarioProvincial Standards Product ManagementCommittee review their products. If the PMCaccepts the product, it automatically gets an“excepted for use” designation in TRA’s data-base.
It is a mutually beneficial process, says JoeBucik, Manager of the Highway Design Officein MTO’s Engineering Standards Branch.
‘We have been using The Road Authority forsometime as a source of information on suppli-ers, although that is no guarantee that the MTOwill accept them as designated suppliers,” saysBucik. “In turn, people can look at our annualDSM publication to see which suppliers haveproducts that we deem acceptable for our use.
“Sharing a common database with otheragencies and municipalities will certainly savetime in the search process and ensure that thedatabase is up to date. One specific feature thatwe like is that there are two doors into thedata-base - the publicdoor and our own private areawhere we can maintain the information that weneed specifically for our projects and contracts.”
As with the MTO, says Desrocher, eachmunicipality will have the option to have itsown private approved suppliers list within TheRoad Authority and, at its discretion, can sharethat information with other municipalities.
‘Which, of course, we hope they do,” headds. “Making the system work depends in largemeasure on people’s willingness to co-operateand collaborate.”
Saving time and money through collabora-tion was certainly part of Durham’s motivationin joining the TRA in its expanded role. At theurging of Tony Prevedel (Chair of the OPSProduct Management Committee, and Directorof Transportation and Construction Services inDurham), Durham wasthe first regional munic-ipality to commit to using the collaborative sys-tem.
Durham has an associated chain of materialsuppliers and approved products that it will nowbe posting on the IRA site, says Allan Henning,
Senior Contracts Technician for the Region ofDurham and responsible for the tendering of allinfrastructure contracts.
‘Through mergers and some of the otherdownsizing and downloading activity ofthe lastwhile, our approved suppliers list has becomesomewhat outdated,” says Henning. ‘This willact as an impetus to get our products updatedand should be a tremendous opportunity forvendors to make new customer contacts rela-tively easily and inexpensively.”
“Each municipality, to one degree or another,maintains its own standards for many productsand services and that takes a lot of time andeffort,” he adds. “It seems to make more sensetohave a single database maintained by TRArather than each of us having one in our deskdrawer. Each municipality would still have thefreedom to select the vendors and the productsthat they want to use butwe would be collabo-rating and saving time and effort in the informa-tion management side.”
And that is precisely how The RoadAuthority expects municipalities and agencies toreact once they see the benefits of the new sys-tem, concludes Steve Desrocher.
Nobody would deny that, between munici-palities, there can be a healthy sense of compe-tition and some strong rivalries, he says. But withdownsizing and shrinking budgets, everymunicipality and agency is looking for ways tomaintain or improve services without increasingcosts.
“Collaboration through the medium of e-
commerce is clearly a way to accomplish this.”
Backgrounder
The Road AuthorityWeb site: www.roadauthority.comEstablished: 1997Private sector members: 1400Public sector members: MTO and
Ontario municipalities# of products in database: 2400Product approval: managed by
Ontario Provincial StandardsProduct Management Committee
Fees: Companies: $275 a yearMunicipalities: free
TRA Services:-Information on products, services and
technical solutions-public works related information-access current standards-discussion forums-product review and classification-promotion of collaboration amongst
infrastructure owners and the pri-vate sector
The Wall Journal January to May 2001 Issue No. 42 23
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