tire/pavement noise and other surface characteristics from highway pavements in california
DESCRIPTION
Tire/Pavement Noise and other Surface Characteristics from Highway Pavements in California. Erwin Kohler. CHILE. Presented at CONINFRA 2009, Sao Paulo, Brazil. Acknowledgements. John Harvey – UCPRC Linus Motumah - Division of Pavements, Caltrans. Propiedades del pavimento vs textura. - PowerPoint PPT PresentationTRANSCRIPT
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Tire/Pavement Noise and other Surface Characteristics from Highway Pavements
in California
Erwin Kohler
Presented at CONINFRA 2009, Sao Paulo, Brazil
CHILE
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Acknowledgements
John Harvey – UCPRCLinus Motumah - Division of Pavements, Caltrans
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Propiedades del pavimento vs textura
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Projetos UCPRC sobre ruído e textura• UCPRC é a Universidade da Califórnia Pavement
Research Center (Centro Pesquisar Pavimentos)
• Em 2005 começou um projeto para avaliar o ruído e outras características superfície do pavimento
• Temos até 3 anos de medições de ruído e da macrotextura em pavimentos de asfalto
• Estou trabalhando agora no 4º ano da recolha de dados em asfalto e 2º ano en concreto
• Medições acústicas com método “OBSI”
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Content1. OBSI method of testing noise
2. Asphalt Pavement Research
3. Concrete Pavement Research
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Metodo OBSI
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The OBSI methodAASHTO TP 76-08 - Standard Method of Test for
Measurement of Tire/Pavement Noise Using the On-Board Sound Intensity (OBSI) Method
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OBSI Details• It measures the noise near the source, at two locations
(front and rear)
• It captures noise in a range of frequencies and an overall index is calculated
• OBSI uses a standard test tire, and the test speed is 60 miles per hour (96.5 Km/h)
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Asphalt Pavements
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Quieter Pavement Research
1. What properties/materials impact pavement noise levels and how?
2. How long can the acoustic benefits of the pavement last?
3. How do quieter pavements perform over time with regard to friction, smoothness, traffic loading, and maintenance needs?
Purpose is to answer:
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Asphalt sections• Target: 80 pavement sections throughout
California
Pav. Type
Age
Rainfall
Traffic H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L
DIS
T/C
TY/R
TE/K
P
03-P
LA-8
0-1.
4/2.
601
-LAK
-29-
R37
.3/R
37.6
04-C
C-6
80-2
3.9/
24.9
05-S
CR
-152
-7.6
/8.0
04
-Mrn
-101
-0.0
/2.5
(NB&
SB)
04-S
on-1
21-3
.4/7
.3(N
B&SB
)(+)
04-S
Cl-2
37-R
3.8/
7.10
(+)
08-S
Bd-3
8-S0
.0/R
5.0
04-M
rn-3
7-12
.1/1
4.4(
EB&W
B)(+
)01
-MEN
-1-0
.1/1
5.2
(Sta
ntec
/cor
ed)
04-S
Cl-2
37-R
1.0/
2.3
03-S
ac-1
6-6.
9/20
.7
03-P
la-8
0-14
.3/3
3.3
01-M
EN-2
0-R
37.9
/43.
006
-TU
L-99
-42.
0/47
.0
06
-TU
L-63
-19.
8/R
30.1
03
-Sac
-50-
16.1
0/17
.30
10-A
ma-
49-1
4.7/
17.6
07-L
A-71
0-6.
8/9.
706
-Tul
-65-
21/2
9 (S
tant
ec/c
ored
)
04-N
ap-1
28-5
.1/7
.4 (E
.B. o
nly)
04-S
Cl-8
5-1.
9/4.
708
-SBD
-58-
R0.
0/5.
3
01-M
EN-2
0-R
37.9
/43.
004
-SC
l-280
-R0.
0/R
2.7
06-T
UL-
63-1
9.8/
R30
.1
04-M
rn-1
01-1
8.9/
23.1
(NB
only
)04
-Son
-1-0
.0/8
.4 (N
B&SB
)(+)
08-R
iv-1
5-33
.8/3
8.4
05-S
LO-4
6-R
10.8
/R22
.004
-Mrn
-101
-2.5
/8.5
(as-
buit)
10-C
al-4
-0/1
8.8
07-L
A-60
-R25
.4/R
30.5
(sta
ntec
)07
-Ven
-34-
4.3/
6.3
01-M
EN-2
0-R
37.9
/43.
006
-FR
E-99
-10.
7/15
.907
-LA-
138-
60.2
/61.
6 03
-ED
-50-
17.3
/18.
303
-ED
-50-
18.5
/20.
3 (a
s-bu
ilt)
06-K
ER-9
9-R
29.5
/R31
.0 (o
nly
SB)
04-S
OL-
113-
0.1/
18.0
04-S
M-2
80-9
.6/1
0.8
01
-Men
-1-2
0.8/
38.7
(S
tant
ec/c
ored
)04
-Ala
-92-
6.6/
8.8
06-K
ER-6
5-R
0.0/
2.9
(Sta
ntec
/cor
ed)
01-L
ake-
20-4
5.8/
46.5
01-M
en-1
01-3
7.4/
38.8
01-M
en-1
01-5
0.8/
51.
501
-HU
M-1
01-1
11.1
/111
.501
-Men
-20-
21.1
9/21
.69
01-M
en-2
0-22
.18
/22.
68
H H H
L H H
H L H L H L H L H L H L H L H L
1-4 years 5-8 years
H L H L H L H L
<1 year 1-4 years 5-8 years <1 year
F mixes
<1 year 1-4 years 5-8 years <1 year 1-4 years 5-8 years <1 year 1-4 years 5-8 years
RAC-O RAC-GOGAC DGAC
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Asphalt Pavements SectionsTotal number of sections
2006 762007 712008 65
By mix typeOGAC: 18 (Open Graded Asphalt Concrete)RAC-O: 20 (Rubberized AC Open Graded)RAC-G: 13 (Rubberized AC Gap Graded)DGAC: 18 (Dense Graded AC)Other: 7 (BWC, F-mixes, Euro gap graded, MB)
Represent entire population of AC pavements
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Data collection
Condition Survey
Permeability
Friction (microtexture)
Collect Cores
Pavement/ tire noise
Smoothness (IRI)
Macrotexture
Thickness
Air Void Content
Aggregate Gradation (sizes)
Sound absorption
Traffic closureTraffic speed Laboratory
Cores #1 and #2
Cores #3 and #4
Cores #9 and #10
Cores #11 and #12
Core #3
Core #4
Core #5
Core #6Friction and
permeability zones
Center of the laneWheelpath
Direction of traffic
25m between cores
3.6m
150m long test section
Cores #5 and #6
Cores #7 and #8
Detail segment
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Work in a traffic closure
Traffic Control: Caltrans Maintenance
Condition survey: cracks & distresses, pictures
Cores: drill, extract, label, backfill
Friction: BP (& DFT)
Permeability: epoxy seal, place, pour water, time
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Sorted by type & noise level
94
96
98
100
102
104
106
108
110R
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-OR
AC
-O
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
RA
C-G
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
OG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
DG
AC
EU
Gap
Gra
ded
EU
Gap
Gra
ded
RU
MA
C-G
GR
UM
AC
-GG
Typ
eDM
BB
WC
RA
C-O
-F-m
ixR
UM
AC
-GG
-90
mm
BW
CB
WC
RU
MA
C-G
G-4
5m
mR
UM
AC
-GG
-90
mm
Typ
eG-M
B-9
0m
mB
WC
Typ
eG-M
B-4
5m
mR
UM
AC
-GG
-45
mm
RA
C-O
-F-m
ixT
ypeD
-MB
-90m
mT
ypeD
-MB
-90m
mT
ypeG
-MB
-45
mm
Typ
eDM
BT
ypeD
-MB
-45m
mB
WC
Typ
eD-M
B-4
5mm
Typ
eG-M
B-9
0m
mT
ypeG
-MB
-90
mm
Typ
eG-M
B-4
5m
mR
AC
-O-F
-mix
RU
MA
C-G
G-4
5m
mR
UM
AC
-GG
-90
mm
Typ
eDM
BT
ypeD
-MB
-90m
mR
AC
-O-F
-mix
Typ
eD-M
B-4
5mm
RA
C-O
-F-m
ixR
AC
-O-F
-mix
OB
SI
RAC-O RAC-G OGAC DGAC Other
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OBSI vs Pavement Age & by Mix Type• no AC section older than 8 years has OBSI <100 dB(A)
94
96
98
100
102
104
106
108
110
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Pavement Age
OB
SI
DGAC | RAC-G | OGAC | RAC-O
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• OBSI results in California on all sections by year
100.8 101.2102.1
103.6
94
96
98
100
102
104
106
108
110
Year of testing
OB
SI
2006 2007 2008
All asphalt sections
Asphalt Pavements 3-year Results
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Concrete Pavements
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Concrete Pavements• From early Arizona and California database:
– “at least in the US, the absolute level of quiet PCC does not approach that of quiet AC”
• The concrete pavement industry responded with testing and building test sections
• 4 “families” of concrete pavements - Diamond Grinding - Drag
- Longitudinal Tining - Transverse Tining
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State-wide AC & PCC OBSI studies• Range of climates, traffic levels, pavement types
AC PCC
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Comparison of PCC and AC• Cumulative distributions of OBSI levels• PCC: CP Tech Center, from several states, custom equipment,
shorter interval• AC: UCPRC, only California, AASHTO TP-76 equipment, 5 seconds
Concrete Pavements
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
96 98 100 102 104 106 108 110
Overall OBSI (dBA)
Cu
mu
lativ
e D
istr
ibu
tion
.
Diam-G
Drag
Longit T
Transv T
Asphalt Pavements
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
96 98 100 102 104 106 108 110
Overall OBSI (dBA)
Cu
mu
lativ
e D
istr
ibu
tion
.RAC-O
OGAC
RAC-G
DGAC
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Conclusions• Diamond ground surfaces are the quietest PCC.
• It is important to establish goals for tire/pavement noise. A noise level of 100.0 dB(A) measured at 60 mph seems reasonable.
• The UCPRC study shows that after two years, the average noise from about 70 sections has increased from 100.8 dB(A) to 102.1 dB(A). This is an increase of 1.3 dB(A) over a two-year period.
• It must be noted that many RAC-O sections that are less than 8 years old are still between 98 and 100 dB(A).