highways department evironmental report 20082 introduction about highways department the highways...
TRANSCRIPT
Director’s Message ..................................................................................................... 1
Introduction ................................................................................................................ 2 AboutthisReport AboutHighwaysDepartment EnvironmentalGoal EnvironmentalPolicy
Environmental Management in Capital Works Projects ........................................... 4 PlanningandDesignStage TenderProcurementStage ConstructionStage EnvironmentalTraining
Sustainable Asset Management .............................................................................. 14 UseofReclaimedAsphaltPavementforRoadMaintenance GreeningonHighwayStructures GreeningofNoiseBarriers MaintenanceofRoadsideVegetation StreetscapeEnhancementandCommunityPlanting ReducingLightingTrespassfromStreetLights
Research and Technology ....................................................................................... 24 LowNoiseRoadSurfacing(LNRS) RecycledMaterials ThermalPatcher CommonUtilityEnclosure(CUE) DevelopmentoftheExcavationPermitManagementSystem(XPMS)
Clean Air Charter and Green Office Management .................................................. 28 EnergyandEmissionManagementTeam MeasuresandAchievementsofEnergySaving MeasuresandAchievementsofPollutantEmissionReduction GreenOfficeManagement
Environmental Awards ............................................................................................. 34
Achievement of Environmental Objectives and Targets and Environmental Targets for 2009 ....................................................................... 38
II
Director’s Message
ItismypleasuretopresenttoyouoursixthEnvironmentalReportwhichsummarisestheefforts
wehavetakentoachieveourenvironmentalgoalin2008andourenvironmentaltargetsand
initiativesfor2009.
Inthisreport,wesharewithyouourexperienceonenvironmentalmanagementincapitalworks
projects.Wehavesystematicallymanagedeveryaspectofourworkwhichmayhaveimpacton
theenvironmentduringtheplanning,design,tenderprocurementandconstructionstages.The
environmentalplanningfor“WestIslandLine”railwayprojectandtheairqualityassessmentfor
HongKong-Shenzhen-ZhuhaiCorridoraretwoexampleswhichwillcaptureyourattention.We
continueoureffortsingreeninghighwaystructures.Thisreporthasincludedanewitemon
“verticalgreening”whichwillbeofinteresttoyou.
In2008,mucheffortshavebeendevotedtothestreetscapeenhancementworksfortheOlympic
andParalympicEquestrianEvents.Theenhancementworkswhich,includingthelayingof
colourfulpavingblocksandimprovementofroadsidestructuresinthevicinityofeventvenues,
haveaddedvitalitytothecommunityinanenvironmentallyfriendlymanner.
Besides,wehavebeenactivelypursuingresearchstudiesonuseofrecycledmaterialsand
reductionoftrafficnoise.
Wearealsocommittedtoenergysavingandwillcontinuetomakeourbestendeavoursto
supportthecleanairinitiatives.Fiveenergymanagementopportunitieshadbeenidentified
inourfirstenergyauditandwehadpromptlytakeneffectivemeasures.Wehaveachieved
goodresultsinenergysavinginpubliclighting.Followingtheimplementationofthreeenergy
savingmeasuresinpubliclighting,werecordedasignificantsavinginenergyconsumptionof
627,000kWh.Asfrom2008,weadopttheuseofpaintwithlow/novolatileorganiccompounds
(VOC)inallnewworkscontracts.In2009,wewillbemoreproactiveinimplementingenergy
savinginitiatives.Forinstance,wewillcarryouttrialswithaviewtoadoptingrenewableenergy
technologiesinournewcapitalworksprojects.
Notwithstandingoureffortsmadein2008,wewillcontinuemaintainingourcontributions
inprotectingourenvironmentandsearchingforeveryopportunityforablueskyandbetter
environment.Ihopeyouwillfindthisreportinteresting.
WAIChi-sing
DirectorofHighways
June2009
�
2
Introduction
About Highways Department
TheHighwaysDepartmentisresponsiblefor:
About this Report
Thisreportcoverstheperiodfrom�January2008to3�December2008.It
showstheenvironmentalawarenessofourworkandoureffortsinenvironmental
managementincapitalworksprojects,sustainableassetmanagement,research
andtechnology,CleanAirCharter,andgreenofficemanagement.Environmental
awards,achievementofenvironmentalobjectivesandtargetsfor2008and
environmentaltargetsfor2009arealsocoveredinthisreport.
Toreducepaperconsumption,thisreportispublishedinCD-Romformatand
uploadedtoourwebsite.
•implementationofhighwayprojectsinthePublicWorksProgramme;
•maintenanceofpublicroads,includingroadfurniture,roaddrainageandroadside
slopes,andco-ordinationandcontrolofutilityopeningsonpublicroads;
•planning,monitoringandcoordinatingvariousactivitiesassociatedwith
implementationofnewrailwayprojects;
•providingdesigninputforroadlighting,highwaystructures,roadsideslope
upgradingandlandscapefeaturesassociatedwithcapitalworksprojectsand
maintenanceworks;
•inspectingthesafetyprovisiononhighwayconstructionsites;
•researchingintonewmaterials,techniquesandstandards;and
•providingengineering,quantitysurveyingandlandscapingtechnicalservices.
ENVIRONMENTAL REPORT 2008 3
TheDepartment’sHeadquartersarelocatedinHoManTinGovernmentOffices(HMTGO),with
sub-officesinNorthPointGovernmentOffices(NPGO),CheungShanWanGovernmentOffices
(CSWGO),CheungShaWanPlaza,SkylineTowerandNanFungCommercialCentreinKowloon
Bay.Wehaveanestablishmentofabout450professionalstaffand�,600technicalandgeneral
gradesstaff.Wemaintainabout2,040kmofroadsand�2,600roadsideslopeswithinthe
territory.Thetotaloperatingexpenditureforthefinancialyear2008/09is$2,�40million.
Environmental Goal
Ourenvironmentalgoalistoaccomplishpublicworksefficientlyandwithdueregardtothe
environment.
Environmental Policy
OurpolicyonprotectionoftheenvironmenthasbeenintegratedintoourDepartment’s
ManagementPolicywithitslatestversionpromulgatedinApril2009.Wearecommitted
tosustainableconstructionwithdueconsiderationtobalancingenvironmental,socialand
economicneeds.Toachievethegoalofprotectingtheenvironment,weplaceemphasison
theenvironmentalconsiderationsofourworkundertheEnvironmentalManagementSystem.
Weactonthepolicyby:
• identifying and controlling the environmental aspects at all stages of our work;
• using resources efficiently, minimizing waste and preventing pollution as far as practicable;
• monitoring the performance of our contractors to ensure good quality of works and to prevent or mitigate potential environmental impacts arising from our projects;
• complying with relevant legal and other requirements; and• identifying opportunities for continual improvement.
Environmental Management in Capital Works Projects
“Environmental considerations are at the heart of our day-to-day activities. We systematically manage impacts that our work may have on the environment and ensure that all our operations are carried out in an environmentally responsible manner.”
4
Planning and Design Stage
Indeliveringanewroadorrailwayproject,
weidentifyattheplanningstagethe
environmentallysensitiveareasandtryto
avoidimpactsontheenvironment.Wesetup
operationalcontrolsonthesignificantaspects
anddevisemitigationmeasuresincorporated
intotheprojectdocumentsatthedesign
stage.
Withaviewtoprotectingresidentsandother
sensitivereceiversfromadverseenvironmental
impactsoftheproposedworks,wegothrough
theEnvironmentalImpactAssessment(EIA)
processasrequiredundertheEnvironmental
ImpactAssessmentOrdinance(EIAO).The
processcoversanassessmentonawide
rangeofenvironmentalaspectssuchas
noise,airandwaterpollution;landscape
andvisual;ecology,culturalheritageand
archaeologyduringboththeconstructionand
operationstagesoftheproject.Itidentifies
theimpactsources,communitysectorslikely
tobeaffected,and
determinesthe
severityofimpacts.
Shouldanyadverse
impactbeidentified,
wewilldevise
measurestoavoidit
ortomitigateittoan
acceptablelevel.
Environmental Planning for West Island Line
WestIslandLine(WIL),anextensiontothe
existingMassTransitRailway(MTR)Island
LinefromSheungWantoKennedyTown
intheWesternDistrict,isarailwayproject
underactiveplanning.Itwillprovideaformof
masstransportationrailservicethatismore
environmentallyfriendlythanroad-based
alternatives,asconfirmedintheStrategic
EnvironmentalAssessmentfortheSecond
RailwayDevelopmentStudycompletedinyear
2000.
Improving the overall environmental quality of
Western District
Theproposedrailwaylinewillprovideafast,
convenientandreliablemeansofpublic
transportbetweenSheungWanandKennedy
Town.ItwillenableresidentsinWestern
DistricttohavedirectaccesstotheMTR
network,savingtimeforinterchangefrom
roadtransporttorailwaynetwork.Inparticular,
thepromotionofrailservicecontributes
towardsachievinganoverallsustainable
transportationsystem.Fromefficiencyand
environmentalviewpoints,theuseofemission
freeandelectricallypoweredtrainsoperating
undergroundisparticularlysuitable.As
WesternDistricthasbeenfullydeveloped,
thereareseriousconstraintsinconstructing
anynewroadsorwideningexistingonesto
alleviatetrafficcongestion.Anunderground
railwayisamorefeasiblewaytoimprovetraffic
conditionsinthedistrict.
WithWIL,theexistingheavily-loadedroad
networkscouldbefreedup.Suchreducedroad
trafficwouldresultinoverallimprovedtraffic
flowsattheWesternDistrictaswellashelping
toreducevehicularnoiseandairemissionsin
thearea.Furthermore,astheentireWILwill
beunderground,theneedforerectingnoise
barriersandenclosurescouldbeavoided.
Giventhedeepundergroundtunnel,ground-
bornetrainnoiseimpactswouldbeminorand
couldbereducedtoacceptablelevels.Hence,
theoverallenvironmentalqualityoftheWestern
Districtwillbeimproved.
Environmental considerations of WIL
WILisaDesignatedProjectwithinthe
scopeoftheEIAO.Environmentalimpacts
suchasissuesrelatedtoairbornenoises,
ground-bornenoises,landscapeandvisual
5ENVIRONMENTAL REPORT 2008
Tree Wall along Forbes Street looking west
aspects,culturalheritage,waste
management,waterandairquality
etc.wereallcarefullyconsidered.
Partoftheassessmentwason
measurestoavoidortoreduce
theimpactstoacceptable
levels.TheEnvironmental
ImpactAssessmentReportof
theprojectwasexhibitedfor
public’scommentinlate2008
andapprovedbytheDirectorof
EnvironmentalProtectionon23
December2008.
Western tall segment of Tree Wall along Forbes Street
ExtensivepublicconsultationhasbeenconductedduringthepreliminarydesignoftheProject.The
publicgenerallywelcomeandlookforwardtotheearlyimplementationofWIL.However,during
publicconsultation,itisnotedthatakeypublicconcernonlandscapeandvisualissueswasthe
needtopreservethetree
wallsintheKennedyTown
PlaygroundalongForbes
Street.Inresponse,thecut
andcoverKennedyTown
Stationisdeliberatelylocated
asfartotheeastasthe
topographypermitsandby
adoptingaradicalinternal
stationdesignthelengthof
thestationisminimized,thus
avoidingdisturbancetothe
treewalls.
Tree Wall near Kennedy Town Station
Main Building of the
University of Hong
Kong
Western Market at 323, Des Voeux Road Central
Ontheculturalheritageside,allDeclared
Monumentsandgradedhistoricalbuildingswithin
theProjectboundarywereidentifiedattheearly
stageofthepreliminarydesign.Thesitesidentified
includefiveDeclaredMonuments(suchasthe
WesternMarketandtheexterioroftheMain
BuildingoftheUniversityofHongKong),seventeen
gradedhistoricalbuildingsaswellasbuildings
andstructuresthatarenotyetgradedbutofhigh
architecturalandhistoricalsignificance.Thisenablesthe
projecttobedesignedtoavoidcausingdirectphysical
impactsontheseheritageresources.Furthermore,
vibrationimpactsresultedfromconstructionactivitiessuch
astunnelboringorblastingaretakenintoaccount,and
controlandmonitoringmeasureswillbeimposedtoensure
noadverseimpactsonthesestructureswillarise.
6
Environmental Management in Capital Works Projects
AsfortheconstructionoftheWIL,waste
managementisamajorenvironmentalconcernsince
disposaloflargequantitiesofexcavatedmaterials
couldhaveserioustrafficandenvironmental
implicationstothealreadycongestedandbuilt-
uparea.Inordertoreduceadverseimpactsto
localroadsneartheBelcher’sGarden,aspecially
constructedaditandaverticalshaftareplanned
fortransportingmuckundergroundwiththeshaft
locatedasnearaspossibletothebargingpoint.This
arrangementistoshifttheexcavatedmaterialsalong
theundergroundadit,uptheverticalshaftandinto
anenclosedconveyorbeltsystemleadingtothe
bargingpointattheWesternPublicCargoWorking
Areas,therebyavoidingorreducingconsiderablytheimpactstothelocalroadsduetohaulage.The
intentionistousebargesfortransportingmostofthesurplusexcavatedmaterialsoffsitebysea.
Othernoisecontrolmeasuresincludetheuseofquieterconstructionmethodsandequipmentsuch
asmovableandtemporarynoisebarriers,fullenclosure,noiseinsulatingfabric,acousticenclosure,
noiseinsulatingcoverordeckingoverexcavationareas.
Mucking System between University Station and Barging Point
Air Quality Assessment for Hong Kong – Shenzhen – Zhuhai Corridor
TheHongKong–Shenzhen–ZhuhaiCorridor
consistsoffournewmainprojectsforthe
partwithinHongKong,namelytheHongKong
LinkRoad(HKLR),theHongKongBoundary
CrossingFacilities(HKBCF),theTuenMun
–ChekLapKokLink(TMCLKL)andtheTuen
MunWesternBypass.
Threeofthefourprojects,namelyHKLR,
HKBCFandTMCLKL,arecloselyrelated.Itis
envisagedthattheseinfrastructureprojects
willstartconstructionwithinsimilartimeframe
in20�0/20��forcompletionin20�6.The
environmentalimpactassessment(EIA)such
asairqualityimpactassessmentarisingfrom
theseprojectsisconsideredinaholistic
manner.Theyareclassifiedasdesignated
projectsunderSchedule2oftheEnvironmental
ImpactAssessmentOrdinance(EIAO).In
珠三角高速公路網Highway Networks in Pearl River Delta
7ENVIRONMENTAL REPORT 2008
accordancewiththerequirementsofEIAO,
projectprofilesfortherespectiveprojects
weresubmittedtoEnvironmentalProtection
DepartmentfortheapplicationofEIAStudy
Briefs,whichweresubsequentlyissuedtous
forcarryingoutoftheEIAstudies.
Theairqualityimpactassessment,formingpart
oftheEIAstudies,shallmakereferencetothe
AirPollutionControlOrdinance(APCO)andthe
relevantstandards/guidelines.Groundworkand
datapreparationfortheairqualityassessment
modelhascommencedsincethefourthquarter
of2008.ItisanticipatedthattheEIAReports
willbesubmittedforapprovalandpublic
exhibitionundertheEIAOinmid2009.
WithreferencetotheEIAStudyBriefs,the
studyareaforairqualityimpactassessment
shouldgenerallybedefinedbyadistanceof
500mfromtheboundaryoftheprojectsite.
Furthermore,itshouldbeextendedtoinclude
majoremissionsourcesthatmayhavea
bearingontheenvironmentalacceptabilityof
theproject.Thestudywillalsoreviewtheair
qualityimpactsontheareasandothersensitive
receiverssuchasTungChungNewTown,which
maybepotentiallyaffectedbytheproject.
Foroperationalairqualityassessment,nitrogen
dioxide(NO2)andrespirablesuspended
particulates(RSP)arethetrafficairpollutantsof
primaryconcernandwillbeassessedalongwith
otherAirQualityObjectives(AQO)undertheAPCO.
Prediction of Cumulative Air Quality Impacts
Thecumulativeairqualityimpactswouldbe
obtainedbysummingupforeachhourthe
predictedconcentrationsof
•backgroundairqualityfromsources
includingthoseinthePearlRiverDelta
EconomicZone,ChekLapKokAirport,
roadsbeyondLantauandpowerplantsin
HongKongSpecialAdministrativeRegion;
•openroadtrafficemissions;and
•emissionsfromvehiclesattheholding
areasoftheboundarycrossingfacilities,
tunnelportalsandventilationbuildings.
Theworst-caseconcentrationswouldthenbe
calculatedateachoftheidentifiedairsensitive
receiverstocheckforcompliancewiththe
respectiveAQO.
Reclamation Design for Hong Kong Boundary Crossing Facilities
TheHongKongBoundaryCrossingFacilities
(HKBCF)projectinvolves�30haofreclamation
toprovidelandfortheHKBCFdevelopment.
Undertheplanninganddesignstage,we
havebeenexploringdifferentreclamation
methodstominimisethedredging/disposal
ofthemarinesedimentsandtomaximise
theuseofpublicfillsprovidedthatthe
programmeoftheHKBCFprojectcantally
withthecommissioningdatefortheHong
Kong-Zhuhai-MacaoBridge.Thepreliminary
reclamationdesignfortheHKBCFbeing
currentlyconsideredinvolvesamixtureof
thefullydredgedandnon-dredgedmethods
(suchasthedrainedmethodwithbanddrains).
Wewillcontinuetoreviewandrefinethe
reclamationdesigntominimisetheimpacton
ourenvironment.
Heritage Preservation for Central Kowloon Route
TheproposedCentralKowloonRoute(CKR)
isadual3-lanetrunkroadacrossCentral
KowloonlinkingWestKowlooninthewestand
theproposedKaiTakDevelopmentintheeast.
TheinvestigationstudyforCKRhascompleted
itsassessmentonvariousalignmentoptions
andimpactstotheYauMaTeiPoliceStation
whichisaGradeIIIhistoricbuilding.An
Old Wing of Police Station: Identified as a building of high significance
8
Environmental Management in Capital Works Projects
Tender Procurement Stage
Incorporation of environment-related clauses into the tender documents
Inadditiontoincorporation
ofrelevantstandard
environment-relatedclauses
promulgatedbytheBureau
intotenderdocuments,
specialmeasuresrequired
tobecarriedoutbythe
contractorarealsoincluded.
Theseenvironment-related
requirementsincludethefollowing:
•vehiclesfortheEngineershallbeequipped
withenginespropelledbyhybridofpetrol-
electricity,oranyothernon-fossilfuelsif
appropriate;
•whereappropriate,metallicmaterialsshall
beusedfortemporaryworks;
•sitedepotsshallbesurfacedwith
reclaimedasphaltpavement;
•allelectricalappliancesandequipment
usedinthesiteshallbearEnergy
EfficiencyLabelswherepracticable;
•wheelwashingfacilitiesshallbe
providedforsitesinvolvingconsiderable
earthworks;
•dumptruckscarryingdustymaterialsshall
befittedwithmechanicalcoverstocover
thedumpbed;
•QualityPoweredMechanicalEquipment
(QPME)shallbeusedwhereappropriate;
•on-sitesortingofconstructionand
demolition(C&D)materialsshallbe
adoptedwhereappropriate;and
•recycledaggregatesshallbeused
whereverpossibleinconcreteproduction,
constructionofroadsub-baseand
concretepavingunits.
Inthetenderdocuments,tenderers’attentionis
particularlydrawntothecontractrequirements
inrespectoftheuseofenvironmentally
friendlyplant/materials. Forprojects
requiringenvironmentalpermitsunderthe
EnvironmentalImpactAssessmentOrdinance,
theEnvironmentalPermitsissuedtothe
Departmentareincludedinthecontractsso
thatthecontractorscanobserveandabideby
theconditionssetoutinthePermits.
Tender submission and tender evaluation
Asageneralpolicy,tenderers’pastconvictions
recordsonenvironment-relatedoffences
willbecheckedandconsideredpriorto
recommendationofthetenderersforaward
ofcontracts.Whereamarkingschemeis
adoptedforassessmentoftenders,extra
creditswillbegiventotendererswhopropose
betterenvironmentalproductionmeasuresin
theirtechnicalproposals.
Bothhardandsoftcopiesoftender
documentsonworkscontractsareissuedto
tenderers.Tenderersareallowedtosubmit
tendersinhardcopyformatorinpartly
electronicformat.
Construction Stage
Environmental management in construction sites
Underthe“PayforSafetyandEnvironment
Scheme”,ourcontractorsarerequiredtoprepare
andimplementEnvironmentalManagementPlans
comprisingwastemanagementandabatementof
environmentalnuisancesonconstructionsitesin
theaspectsofair,noise,waterandwastewater.
alignmenthasbeenselectedtoavoid
demolitionofthePoliceStation.
AconservationstudyforthePoliceStationis
beingconductedtoidentifyitsvaluesandto
formulateguidelinesonconservation.Abuilt
heritageimpactassessmentisalsounderway
toexamineanydirectorindirectimpactsby
CKRandtorecommendappropriatemitigation
measuresforthePoliceStationaswellas
otherheritageareasadjacenttoCKR.
9ENVIRONMENTAL REPORT 2008
Werequireourcontractorstoputefforton
environmentalmanagementthrough:
•discussingenvironmentalissuesatthe
monthlySiteSafetyandEnvironmental
ManagementCommitteeMeetingchaired
bytheEngineer’sRepresentative;
•attendingweeklyenvironmentalwalks
jointlyconductedbythecontractorandthe
Engineer’sRepresentative;
•ensuringregularsiteauditsandmonitoring
beingconductedbyEnvironmentalTeamand
IndependentEnvironmentalChecker;and
•thattheenvironmentalissuesarecovered
atsite-specificinductiontrainingandtool
boxtalks.
In2008,westeppedupenvironmentalcontrol
measuresthrough:
•implementingcontractprovisionsto
requirecontractorstoinstallmechanical
coversondumptruckscarryingdusty
materialsleavingtheconstructionsites;
and
•incorporatinganincentiveclausein
contractsontheuseofQPME-typed
asphaltpavers,roadrollersandvibratory
rollersforroadworksundertwo
maintenancetermcontracts.Adopting
QPME-typedconstructionplantwillreduce
thesoundlevelgeneratedfromtheworks
andhenceenvironmentalnuisancetothe
surroundings.
Someoftheenvironmentalnuisance
abatementmeasurescarriedoutonsitebyour
contractorsareillustratedbelow:
Use of enclosure for noisy road works
Use of Quality Powered Mechanical Equipment – typed vibratory roller
Noise
Sedimentation tanks Keeping site tidy by providing sanitary facilities
Water
�0
Environmental Management in Capital Works Projects
Drip tray underneath containers to prevent spillage
Waste collection bins for different categories of wastes
Chemical waste storage
Waste
Dump truck fitted with automatic coverProviding cover for open stockpile
Water spraying for dust suppression
Air
��ENVIRONMENTAL REPORT 2008
Environmental Training
TheDepartmentprovidesnecessary
environmentaltrainingforallstaff.Staffnewly
postedtotheDepartmentwouldfirstreceive
relevantawarenesscoursessoastograsp
abetterunderstandingoftheprinciplesand
operationalrequirementsoftheEnvironmental
ManagementSystem(EMS)coveringISO
�400�inashorttime.Wealsocommissioned
trainingon2-dayEMSInternalAuditorcourses
forstaffwhowererequiredtoserveasinternal
auditors.
Adequatetrainingopportunitieson
environmentalmonitoringproceduresand
checkingrequirementsunderthedepartment’s
EMSwereprovidedtofrontlinestaff.Latest
changesinhandlingandreportingofidentified
non-compliancewithlegalrequirementswere
alsoincludedinthetraining.Ourprofessional
andtechnicalstaffalsoattendedtraining
coursesonenvironmentallegislationand
environmentalissuesconductedbyEPD.
TheDepartmentusesthecomputersoftware
“RoadNoise2000”fortheassessmentofroad
trafficnoiseanddesignofnoisebarrier.Users
wereprovidedwithrelevanttrainingincluding
EPD’srequirementonnoiseassessment
methodsothattheycouldgethands-on
experienceofusingthesoftware.
Monitoring of contractors’ performance on environmental protection
OurDepartmentimplementstheEnvironmental
ManagementSystemcertifiedtoISO
�400�:2004.Thecontractors’environmental
performanceandtheircompliancewith
environmentalrequirementsincludingthose
undervariouslegislationsareregularlychecked
andmonitored.
Wemonitortheenvironmentalperformanceof
ourcontractorsbymeansof:
•attendingenvironmentalinspections;
•conductingsitechecksbyEngineer’s
Representativeorhissitesupervisorystaff
inmonitoringthetripticketsystem;
•conductingspotchecksbysitesupervisory
stafftoensurethatvehiclescarryingdusty
materialareproperlyandsecurelycovered
beforeleavingconstructionsites;
•carryingouttask-orientedauditstoassess
effectivenessofcontractors’performance
incontrollingmosquitobreedingon
constructionsitesandcompliancewith
legislativeandotherrequirements;and
•reflectingcontractors’performance
onenvironmentalprotectioninthe
Contractor’sPerformanceReport.
�2
Environmental Management in Capital Works Projects
83
7
30
31
16
37
46
103
114
20
155
1
0 20 40 60 80 100 120 140 160
No. of P artic ipants
Toequipourstaffwithbetterknowledgeonenvironmentalmanagementmeasuresincluding
abatementofenvironmentalnuisancesandreductionofconstructionanddemolitionmaterialsin
constructionsites,wearrangedourprofessionalstafftoattendtheEnvironmentalManagement
CourseforWorksDepartments.
Ourstaffwerealsoencouragedtoattendrelevantlocalshortcoursesrelatedtoenvironmental
issuessuchasurbansustainability,reclamationandharbourplanning,lownoiseroadsurfacing,
climatechange,conservingcityheritage,etc.TheDepartmentalsosponsoredsomeprofessional
stafftoattendrelevantpostgraduatecoursestogainmorein-depthandup-to-dateknowledgeon
environmentalmanagementandconservation.
Awareness Course for ISO 14001
ISO 14001 EMS Internal Auditor Training
Environmental monitoring / measurement procedures and requirements for professional staff
Environmental monitoring / measurement procedures and requirements for technical staff
Training on Environmental Legislation and Environmental Issues
Seminar on Low Noise Road Surfacing
Environmental Policies & Practices in the Mainland & the HKSAR
Joint Safety, Health & Environmental Seminar 2008
Environmental Management Course for Works Departments’ Professional Staff
CEDD – Sustainability Talk
Local Training Short Courses related to environmental issues
International Conference related to environmental issues
Environmental Training Courses held in 2008
�3ENVIRONMENTAL REPORT 2008
Sustainable Asset ManagementThe blending of natural law and human endeavor is the essence of sustainable asset management.
�4
�5
Use of Reclaimed Asphalt Pavement for Road Maintenance
Althoughconstructionanddemolition(C&D)
wasteisnowseparatedandinertmaterialis
usedasfillinreclamationsiteswhenavailable,
asignificantportionoftheC&Dmaterials
stillgoestolandfills.Witheconomicgrowth
andhigherexpectationinlivingstandard,the
volumeofC&Dmaterialsisontheriseand
availablelandfillspaceinHongKongisfast
declining.
HighwaysDepartmentconstructsand
maintainsthepublicroadsystemofHong
Kongwhichgeneratesasubstantialquantity
ofC&Dmaterialseachyear.Asaresponsible
andenvironmentallyconsciousdepartment,it
isourcontinualgoaltoreduceC&Dmaterials
generatedfromourdaytodayactivities.
Acommonmeansofwastereductionis
recyclingofthematerialswherepossible.
TheuseofReclaimedAsphaltPavement
(RAP)inroadconstruction,whichincorporates
milledoffbituminoussurfacingmaterialas
partofitsconstituents,hasbeensuccessfully
adoptedinmanyoverseascountriesinrecent
years.Toassistinreductionofwasteand
savingofusefulmaterials,HyDhasdecided
torecyclethistypeofsurfacingmaterialfor
reuseinroadconstruction.InDecember2007,
about500squaremetersofPakTamRoad
inSaiKungwasreconstructedusingRAP
forthefirsttime.ThentheuseofRAPwas
includedasamandatoryrequirementinthe
roadmaintenancecontractno.��/HY/2007
commencedon�April2008formaintenance
ofhigh-speedroadpavementintheNT
West.Forbituminousmaterialsincluding
roadbase,basecourseandwearingcourse,
thecontractorisrequiredtouseRAPinthe
rangeof�0%to�5%bymassofthetotal
mix.Thereisalsoamandatoryrequirement
inthenewroadmaintenancecontracts
commencing�April2009-nos.07/HY/2008
(roadmaintenanceintheKowloonEast
districts)and08/HY/2008(maintenanceoflocal
roadpavementintheNTWest)touseRAP.We
intendtoprogressivelyextendthemandatory
useofRAPtoothercontractsandalsoto
increasethepercentageofitsuse.
Milling of deteriorated pavement Mixing of RAP material with virgin asphalt pavement in plant
Laying of asphalt pavement with RAP material
Steel rolling of asphalt pavement with RAP material
Final rubber rolling of asphalt pavement with RAP material
Works completed
ENVIRONMENTAL REPORT 2008
�6
Greening on Highway Structures
Astudytoinvestigatethefeasibilityofprovidingmoregreenerytohighwaystructureshasbeen
carriedouttoprovideguidancetodesignersonpossiblegreeningtreatmentstonewroad
structures,suchasfootbridgedecks,structureroofs,columnsandpiers,inasafe,maintenance
friendly,andcosteffectivemanner.
Theexperiencelearntfrom4overseascountrieshopefullywillinspireHongKongtoplanforfuture
greenerytreatmenttoroadstructures.However,retrofittingofgreenerytreatmenttoexistingroad
structureswouldlargelybeconstrainedbysafetyandmaintenanceconsiderations.
North Lantau Expressway with wearing course incorporating RAP laid under conventional polymer modified friction course
Footbridge between Western Market and Shun Tak Centre, Sheung Wan, Hong Kong
Footbridge at Po Kong Village Road, Kowloon
Footbridge linking to IFC, Central, Hong Kong
Footbridge near Science Museum Path, Tsim Sha Tsui
Inlightofthestudyfinding,greenerytreatmentsarebeingwidelyappliedtotheatgradelevel
componentsofexistingroadstructures,suchaspiersandcolumns.Aftercompletionofthestudy,
greeningguidelinesonhighwaystructurewillbedevelopedforapplicationofgreeningoptionson
existingandfuturepublicroadstructuresandtrialswouldbecarriedouttoverifythepracticalityof
therecommendedgreeningoptions.
Flyover above Tsuen Wan Park
Sustainable Asset Management
�7
Vertical Greening
LandisthemostpreciousandlimitedresourceinHong
Kong.Promotionofverticalgreeningonhighwaystructures
isthereforeoneofourmaingreeningobjectives.Anin-
houseTaskForcewithrepresentativesfromthetwoRegional
Offices,BridgesandStructuresDivisionandLandscape
Unit(LU)wassetupinApril2008toexpeditetheprogress
ofverticalgreening.Atotalof48numbersofsiteswere
selectedfortrialunderthreebatches.Fourteennumbersof
trialsitesunderthefirstbatchwerecompletedinthe4th
quarterof2008.Theremainingtrialsiteswillbecompleted
inthe�stand2ndquartersof2009respectively.Vertical
greeningwillalsobeinvestigatedundermajorworks
projectstoencouragethedevelopmentofmorecompetitive
designsandcost-effectivesolutions.Besides,anInventory
ofVerticalGreeningonHighwayStructureswasuploadedin
October2008inLU’sBBSofHyD’sintranet. Sha Lek Highway
Kwai Chung Road
Greening of Noise Barriers
Thetrialuseofgreenwallandplanterswith
climbersalongthenorthboundofKongSham
WesternHighwayatSanSangSanTsuenand
NgauHomSheksections,andtheearthmounds
atYuenLongHighwayandRoute8nearEagle’s
NestTunnelwerecompleted.Thegreening
improvesaestheticsofnoisebarriersandblends
thelatterintothesurroundings.
Furthertrialsofgreenwallnoisebarriershave
beenincludedinContractsNo.HY/2007/07,
HY/2007/08andHY/2009/04(contracts
respectivelyinTseungKwanORoad,TsingYi/
TsuenWanandFanlingHighway).Construction
worksforthefirsttwocontractsarein
progress.TheworksonFanlingHighwayare
scheduledtocommenceinSeptember2009.
Earth mound along Yuen Long Highway north bound to Kong Sham Western Highway north bound
Green Wall along Kong Sham Western Highway at San Sang San Tsuen
Route 8 engineered earth mound
ENVIRONMENTAL REPORT 2008
�8
Maintenance of Roadside Vegetation
HighwaysDepartmentisresponsiblefor
themaintenanceofvegetationwithinthe
boundaryofexpresswaysandonman-made
roadsideslopesunderourcontrolregistered
inthe“SIMAR”databasesetupbyLands
Department.Wearenowmaintainingabout
�,000hectareofvegetation.Ouraimisto
keepthevegetatedareasinagreen,tidy
andsafecondition.Routineinspectionsand
maintenanceoperationsonthevegetation
arecarriedouteverysixmonths.Ifrequired,
maintenancefrequencyisincreasedfor
specificplantingareas.
Maintenanceoperationsincluderemovalof
debrisanddeadtrees,weeding,grasscutting,
watering,pruning,thinning,fertilizing,pest
controlandarboriculturaltreatment,etc.
Improvementplantingworktoenhance
thelandscapesettingoftheslopesand
vergesalongexpresswayswillbecarried
outwheneverresourcesareavailable.Native
andexoticspeciesareusedinharmonyto
improvethelandscapequalityoftheroadside
environmentandtoachieveasustainable
greensetting.
Planting works at new toe wall planter at slope no. 5SE-C/C79, Lung Mun Road, Tuen Mun
Felling of dead tree – 12NW-C/C100 at Clear Water Bay Road, Sai Kung
Improvement planting works – 8 NW-C/C1 at Sai Sha Road, Sai Kung
Before After
Before After
Before After
Sustainable Asset Management
�9
Planting shade tolerant shrubs and groundcovers to improve the green setting at Lung Poon Street
Improvement planting works at Tolo Highway to green the originally bare central dividers
Before After
Before After
Guidelines on Tree Transplanting
Anin-houseTaskForcewassetupinMay2008toreviewthecurrentpracticesoftreetransplanting
thatfallswithinthevegetationmaintenanceambitofHyD.Thescopeofworkofthetaskforceincluded
reviewingcriteriafortransplanting,requirementsforaccommodatingtransplantedtreeswithin
vegetativeareamaintainedbyHighwaysDepartment,measurestoavoidexcessivepruning,related
contractdocumentation,supervisionarrangementandstafftraining.Asetofinterimguidelinesfortree
transplantingworksunderHighwaysDepartment’svegetationmaintenanceambitwaspromulgatedand
postedintheHyDIntranetinDecember2008.
Tree Transplanting Works at Lung Mei Village, Tai Po
ENVIRONMENTAL REPORT 2008
20
Streetscape Enhancement and Community Planting
Streetscape Enhancement Works for the Olympic and Paralympic Equestrian Events
ItwasthefirsttimeeverfortheHong
KongSARtoco-hosttheOlympicand
ParalympicEquestrianEvents.Thedesignand
constructionofthestreetscapeenhancement
worksarisingfromthesememorableevents
werejointlyundertakenbytheHeadquarters
ofHighwaysDepartment,theNewTerritories
RegionalOffice,BridgesandStructures
Division,WorksDivision,LightingDivisionand
LandscapeUnit.Theplanninganddesignwork
startedinearly2007.
Conceptual Design
HighwaysDepartmentobtainedtheapprovalfrom
theBeijingOrganizingCommitteefortheGames
oftheXXIXOlympiadtoincorporatepermanently
thepatentedOlympicand
ParalympicEquestrian
pictogramsintothemud-
redclaypavingblocks
whichhaveallalongbeen
inuseinShaTinsoasto
instiltheOlympicspiritinto
thecommunityofShaTinandtocommemorate
thespectacularinternationalevents.Thepaving
blockswithitsdirectionalfeaturepointingto
themainvenuealso
functionedasaguiding
lightforparticipantsin
theOlympicequestrian
eventsoncompetition
days.
Streetscape Enhancement Works for the Main
Venue
Themainvenuewaslocatedattheformer
siteoftheHongKongSportsInstitutenear
YuenWoRoadFireStationandFoTanRiver.
Theoriginalfootpathwasadark
tarmacroad.Theseatingandthe
pergolaswerewellwornasthey
hadbeeninuseformorethan
twodecades.
After
Before
Uponcompletionoftheenhancement
works,colourfulpavingblockswerelaid
onthefootpathtogetherwiththeoriginal
granitepavingblockstoproduceapattern
thatgavemorevitalitytothefootpathinan
environmentallyfriendlymanner.Asshownin
thephotographs,thenewseatingandpergolas
werestreamlinedindesignwithcoloursthat
integratedperfectlywiththepavingblocks.
Thelamppostswerepaintedinmud-redto
matchwiththecolourofthepavingblocks.
WhilstthefaceliftmadethebankofShingMun
Riveramorepleasantleisurearea,theunique
pavingslabscontainingthepictogramsofthe
OlympicandParalympicEquestrianEvents
servedasavividreminderofHongKongSAR
co-hostingthespectacularevents.
Themetallicpostsoriginally
erectedalongtheroadsideto
preventvehiclesfromparking
onthefootpathswerereplaced
withgranitepoststoecho,in
termsofmaterialsandtexture,
withthegranitepictograms.
Uniquestreetlightingswere
alsoinstalledtoreplacetheold
onesfordecorationpurpose.
Theaforesaidenhancement
worksgreatlyimprovedthe
streetscapeoftheentire
sectionofYuenWoRoadand
createdanexcitingOlympic
atmosphereforspectators
Sustainable Asset Management
2�
oftheOlympicequestrianeventsaswellas
residentsofShaTin.
Streetscape Enhancement Works to the Public
Transport Interchange
Thegovernmenthadborrowedfromthe
ChineseUniversityofHongKongapieceof
landwithanareaofmorethan�0,000square
metrestotheleftoftheMTRUniversityStation
fortheconstructionofatemporarypublic
transportinterchangethatprovidedfeederbus
servicestotheeventsvenues.Thepictograms
oftheOlympicandParalympicEquestrian
Eventswerealsofeaturedintheenhancement
workscarriedoutonthefootpathofthe
temporarypublictransportinterchange.Asthe
alignmentofthefootpathwasovalinshape,
resemblingtheShaTinRacecourse,dozens
ofpavingslabsbearingthepictogramswere
laidalongthefootpathtoremindpassengers
waitingfortheshuttlebusesofhorseracing
ontheevents.
A night view of the public transport interchange
Streetscape Enhancement Works in the
Vicinity of the Olympic Village
ServingastheOlympicVillageforathletes,the
RoyalParkHotelwasconvenientlylocatedin
theShaTinTownCentre,withShaTinParkand
NewTownPlazanearby.Enhancementworks
mainlyinvolvedreplacingpavingblockson
thepavementsalongYiChingLaneandPak
HokTingStreet.Thecomplexityoftheworks
wascomparabletothosecarriedoutadjoining
tothemainvenueastherepavingworkshad
tobecompatiblewithboththedesignofthe
engineeringworksadoptedinthevicinityof
thehotel,andoffacilitiesupgradedbythe
TransportDepartmenttoimprovetrafficflow.
Thephotosbelowshowthestreetscapeofthe
OlympicVillageaftertheenhancementworks.
TheRegalRiverside
HotelonTaiChung
KiuRoadprovided
accommodationfor
journalistsduringthe
EquestrianEvents.A
facelifttotheareawas
necessaryastheconcretepavementsnearby
hadalreadybeeninuseformanyyearsand
thecycletracksinthevicinityhadnotbeen
resurfacedforalongtime.Uponcompletion
oftheenhancementworks,theconcrete
pavementsnearbywerere-pavedwithvivid-
colouredpavingblockswhilstthebicycle
trackswereresurfacedwitharedcolour
coating.Astheadvertisementofthehotelsaid,
theareawouldbecomeaSOHOdistrictinSha
Tin.
ENVIRONMENTAL REPORT 2008
22
Footbridge across Tai Po Road near Fung Wo Lane
Pedestrian subway across Tai Chung Kiu Road near Sha Tin Rural Committee Road
Community Planting
Twocommunityplantingactivities,namely“CommunityPlantingforRoute8–LaiChiKokViaduct
andEagle’sNestTunnel”and“CommunityPlantingforRoute8-NamWanTunnelandTsingYi
Viaduct”,wereheldon�6Februaryand24May2008respectively.
AlltheofficiatingguestsincludingChairmenandCouncilorsofrelevantdistrictcouncilsandtheir
transportsub-committee,principalsfromtheschoolsparticipatinginthecommunityplantingand
participantssuchasteachers,pupilsandtheirparentsfromnearbyprimaryschoolsandresidents
enjoyedtheplantingactivitiesthatprovidedvaluablecontributionstothegreeningofenvironment,in
particulartotheirowndistrict.
Community Planting for Route 8 – Lai Chi Kok Viaduct and Eagle’s Nest Tunnel
Enhancement of Roadside Structures
Enhancementworkswerealsocarriedout
toimproveroadsidestructuressuchas
footbridges,pedestriansubwaysandvehicular
bridgesinShaTin.Gonewerethedayswhen
thecoloursofthesestructureswerelimitedto
differentshadesofgrey.Theintroductionof
newcoloursthattonedinwiththesurrounding
buildingsandenvironmentallowedthe
footbridges,pedestriansubwaysandvehicular
bridgestoblendinwiththesurrounding
environment,makingthestreetscapeallthe
morepleasantforroadusers.
Sustainable Asset Management
23
Community Planting for Route 8 - Nam Wan Tunnel and Tsing Yi Viaduct
Reducing Lighting Trespass from Street Lights
Weareawareofincreasingpublic
concernonlighttrespassfrom
somewall-mountedstreetlights
intowindowsofresidentialbuildings
andhaveendeavoredtoimplement
improvementmeasurestoreduce
suchnuisance.Weconducteda
sitesurveyinthelastquarterof
2008andfoundthat,outofabout
�,�00nos.wall-mountedlightson
residentialbuildings,about720nos.
wereclosetowindows.Now,350
nos.areprovidedwithlighttrespass
reducingfeaturessuchascut-offtype
lanterns/lightshields.Weshallcontinue
toimplementimprovementmeasures
fortheremaining370streetlights,
includingreplacingexistinglanterns
bymoreefficientcut-offtypelanterns,
installinglightshieldsorrelocatingthe
wall-mountedstreetlights,depending
ondifferentsitesituations.Weexpect
thattheimprovementworkscanbe
completedin2009.
Wall-mounted light with cutoff lantern
Wall-mounted light with shield
ENVIRONMENTAL REPORT 2008
Research and Technology
We continue to focus our research on environmentally friendly technology, such as further development of low noise road surfacing, incorporation of recycled material into our road pavement, adoption of common utility enclosure to reduce road opening, and improvement in information technology to enhance efficiency.
24
Low Noise Road Surfacing (LNRS)
OurtrialonthenewpolymermodifiedfrictioncoursematerialatChuiTinStreet,alocalroadinShatin,continued.After24monthsoflaying,thebestperformingtrialsectionstillhasanoisereductionof2.5dB(A)whencomparedwiththeoriginalbituminoussurfacing.ThisshowedasignificantimprovementoverpreviousLNRStrials.Inviewoftheencouragingresults,thenoisemeasurementwillcontinueforanothertwoyearstofurthermonitorthechangeinnoise
reductionperformancewithtime.ThenoiseperformancebenchmarkingexerciseofthevarioustypesoffrictioncoursesattheFanlingHighwaycontinued.Thetrafficnoiseatthetrialsectionsisregularlymeasuredusingboththestatisticalpass-bymethodandtheclose-proximitymethod.Inaddition,thehydraulicconductivityofthesectionsisalsomeasured.Theresultsfromthefirstyearmonitoringindicatethatthethickerlayerofthenewpolymermodifiedfrictioncourseprovidesthequietestsurfacing.
Noise measurement at Chui Tin Street
25ENVIRONMENTAL REPORT 2008
Recycled Materials
Recycled Aggregates as Sub-base
WecontinuemonitoringtheperformanceofthesectionsofFoTanRoadwheresub-basecomprisingrecycledaggregateshasbeenused.Thetrialsectionsoffootpathandcarriagewayarestillperformingsatisfactorily.Wecontinueourlongtermmonitoringsoastoassesswhetherreflectivecrackingintheasphaltpavementwilloccurowingtocrackingofthecementedsub-base.
Study on Asphalt Rubber (AR)
OurstudyontheperformanceofARmixturesunderlaboratorytestshasbeencompleted.TheresultsindicatethatARmixturesaremoredurablewhencomparedwithconventionalbituminousmixtures,butlessdurablethanasimilarmixtureincorporatingapre-blendedpolymermodifiedbinder.Toassesstheon-siteperformanceofthematerials,weareplanningtoconductfurthertestsonthealternativeasphaltmixturesafteranacceleratedpavementtestingfacilitybecomeslocallyavailablein2009.
Paving Blocks with Recycled Glass
Wasteglassculletcanbeusedtosubstitutepartoftheaggregatesinconcretepavingblocks.WehavelaidatrialsectionofpublicfootpathatWangKwongRoad,KowloonBayusingsuchpavingblocks.Thesiteperformanceofthepavingblockswithrecycledglasswillbemonitoredforaperiodofoneyear.
Paving blocks with glass at Wang Kwong Road
Thermal Patcher
Wehavecarriedoutsitetrialsin2008onusingathermalpatchertoperformminorasphaltpavementrepairworks.Theperformanceofpatchingwasfoundsatisfactory.Thethermalpatcherisamachinewithaheatingpanelthatcanheatupandsoftentheasphaltpavementsurfacethroughinfra-redradiation.Thepavementsurfacematerialisploughedlooseasitreachesasuitableworkingtemperaturerange.Withthemixingofasmallamountofnewasphaltmaterial,thepavementsurfacecanbecompactedbyrollertocompletethe
26
Research and Technology
repair.Thismethodreducesconstructionnoisebyeliminatingtheneedtobreakupthepavementwithconventionalconstructionequipment,andcanre-usetheexistingasphaltmaterial.Itissuitableforminorasphaltpavementmaintenance,suchasrepairingsmalldepressionsandsurfacecracks.TheequipmentisnowusedinthetwonewroadmaintenancecontractscommencedinApril2009.
Common Utility Enclosure (CUE)
WehaveresolvedoutstandingadministrationissuesregardingtheuseofthetwosmallscaleCUEsatinHorizonDriveinChungHomKokandatYanCheungRoadinWestKowloon.WeareinvitingthepowerandtelecomcompaniestolaytheirserviceswithinthesetwoCUEs,whichadoptacrossroadtypeofdesign.
CUE at Yan Cheung Road
Development of the Excavation Permit Management System (XPMS)
TheXPMSisanewlydevelopedwebbasedsystemtoreplacetheexistingUtilityManagementSystemanditsInternetInterface.Thenewsystemimprovestheefficiency,transparencyanduser-friendlinessofexcavationpermitprocessingandmanagement.PhaseIofthesystem,whichprocessesRoadWorksPermitintheTsingMaControlAreaandExpresswayWorksPermit,hasbeenrolledoutinJanuary2009.ThesystemwillbefullyimplementedwhenPhaseIIonRoadExcavationPermitsisrolledoutinlate2009.
27ENVIRONMENTAL REPORT 2008
28
Clean Air Charter andGreen Office Management
We are proactive and committed to energy saving. Various energy saving measures have been adopted to support the clean-air initiatives and to sustain green office environment.
ENVIRONMENTAL REPORT 2008 29
Energy and Emission Management Team
TheEnergyandEmissionManagement(EEM)Team,setupinHighwaysDepartmentinSeptember2007,hasbeenprovidingsupporttotheimplementationofEEMprogrammeofthedepartment.Itisresponsibleforthedesignandimplementationofmeasurestoreduceemissionsandtominimizeenergyconsumption,andfortheprovisionoftrainingtoourstaffonenvironmentalmanagement.TheEEMTeamcommissionedElectricalandMechanicalServicesDepartment(EMSD)toconductanenergyauditin2008,coveringourofficesatHMTGO.Fiveenergymanagementopportunitieswereidentified:
�.ReplacetheremainingT8fluorescentlampswithT5fluorescentlamps
2.Lowertheilluminationlevelofpubliccorridor
3.ReplaceexistingT8exitsignwithLEDsign4.Installfloorenergycheckmeters5.Repairbroken/defectivefalseceiling
Measures and Achievements of Energy Saving
Energy Saving in Offices
In2008,wehadadoptedtherecommendationsintheenergyauditreportmentionedabove.OneofthemwastoinstallfloorenergycheckmeterstomonitortheelectricityconsumptionofdifferentfloorsinHMTGO.Havinginstalledthesemetersinmid2008,theelectricity
consumptionofourofficesfromUG/Fto6/Fcanbeseparatelymeasuredtofacilitateourmonitoringwork.Accordingtothedatacollectedsofar,thetotalenergyconsumptionofourofficesinHMTGOfortheperiodofJunetoDecember2008was2,586,879kWh.Thecorrespondingindirectgasemissionswere4,94�kgofsulphurdioxide(SO2),3,00�kgofnitrogenoxides(NOx)and�55kgofrespirablesuspendedparticulates(RSP).
Apartfrominstallingfloorenergycheckmeters,wehavealsoreplacedthedefectivefalseceilingsinHMTGOtominimizethelossofairconditioning.TheT8fluorescentlampsalongthepubliccorridorswillbereplacedbyT5fluorescentlampsandtheilluminationofthepubliccorridorswillbeloweredtoasuitablelevel.Besides,theexitingT8exitsignswillbereplacedbyLEDsignstosaveenergy.Weunderstandthatmonitoringisofutmostimportanceinourenergysavingimplementation.Becauseofthis,energywardenshavebeenappointedineachofficeandtheyareresponsibleforremindingtheircolleaguestocomplywithallgreenhousekeepingmeasuresinday-to-dayofficeoperations.Topavethewayforward,wecontinuetosearchnewandeffectiveinitiativesinofficeenergysavings.Wearenowexploringthefeasibilityandeffectivenessofinstallingmotiondetectorsincellularofficeswherelightswillbeautomaticallyswitchedoffonceexitmovementofstaffisdetected.TrialtestwillbeperformedshortlyattheHeadquarters.
Oneofournewinitiativesonenergysavingforpubliclightingistoevaluatetheapplicabilityofcosmopolislampsforpubliclighting.Cosmopolislampisanewlamptypewithbettercolourrenderingpropertiesandslightlybetterefficiencythanthehighpressuresodiumlamp(HPS)currentlyused.Weplantoconductthetrialschemesin2009toevaluatetheapplicabilityofcosmopolislampsforpubliclighting.
ThetechnologyofLEDlightshasbeendevelopingrapidlyinrecentyears.InordertoevaluatetheactualperformanceofLEDluminaries,weappointedauniversityinHongKongtoconductlaboratorytestsonLEDlights.PreliminaryresultsrevealedthatLEDlightsstillcouldnotcompetewithHPSforgeneralroadlightapplicationduetolowerluminousefficacyandreliabilityinoutdoorconditions.Nevertheless,wewillcontinuekeepingabreastofthedevelopmentofLEDlighttechnologyforlocalpubliclightingapplication.
Energy Saving in Works Projects
Wepromulgateadoptionofenergysavingequipmentinourworksprojects.Forinstance,fortheTuenMunRoadreconstructionandimprovementproject,electricalapplianceswithenergysavinglabelsundertheEnergyEfficiencyLabelingSchemewillbeused.QualityPoweredMechanicalEquipment(QPME),whicharenotablyquieter,environmentallyfriendlyandefficient,
Dimmable electronic ballast
CosmoPolis Light
30
Clean Air Charter and Green Office Management
Energy Saving for Public Lighting
Thepubliclightingelectricityconsumptionin2008was�36,987,358kWh.Thecorrespondingindirectemissionwas26�,646kgofSO2,�58,905kgofNOxand8,2�9kgofRSP.Thoughtherewasagrowthinthepubliclightingpopulation,weachievedasavingof0.2%inpubliclightingelectricityconsumptionin2008ascomparedwith2007.
Wecontinuedimplementationofenergysavingmeasuresonthepubliclightingsystemin2008.Reductioninelectricityconsumptionwasachievedthroughimprovingtheefficiencyofthestreetlightingappliances.In2008,�,872nos.oflampsandlanternswerereplacedwithlowerwattagebuthigherefficiencyones,resultinginanannualsavingofelectricityconsumptionofabout304,000kWh.Wehavealsoreplaced3,000nos.ofelectromagneticballastsbyelectronicballasts,resultinginannualsavingofelectricityconsumptionofabout287,000kWh.Inaddition,wehavecompletedour2008targetofinstallingdimmableelectronicballastsat�0nos.offootbridges,resultinginannualsavingofelectricityconsumptionofabout36,000kWh.Thetotalannualsavingofelectricityconsumptionachievedbythesethreeenergysavingmeasuresamountedto627,000kWh.
Tocontinueoureffortsinreducingenergyconsumptionforpubliclighting,wewillreplaceelectromagneticballastsbyelectronicballastsfor3,000nos.ofpublicroadlightsand�0nos.offootbridgesin2009.
ENVIRONMENTAL REPORT 2008 3�
havebeenadoptedbythecontractorofourmaintenancetermcontract��/HY/2007.WehaveincludedrequirementofusingQPMEinournewmaintenancetermcontract08/HY/2008whichcommencedrecently.
WehaveassessedtheapplicabilityofpotentialenergyefficientsystemsfortheCentral-WanChaiBypassandtheIslandEasternCorridorLinkProjectsintheProjects’EnergyEfficiencyReports.Wewillincludethespecificationfor“Usingelectricalapplianceswithenergysavinglabels”inthecontracttenderdocumentoftheseProjects.
Whereapplicable,weshalladoptrenewableenergytechnologiesinournewcapitalworksprojects.Weshallinstallasolarenergysystemandwindenergysystemattheengineer’ssiteaccommodationoftheTuenMunRoadreconstructionandimprovementproject.WeshallconsiderusingphotovoltaictechnologyforanirrigationsysteminanoisebarrierretrofittingprojectonFanlingHighway.
Measures and Achievements of Pollutant Emission Reduction
Reducing the Use of Volatile Organic Compounds
Fornewworkscontractsawardedsince2008,ourcontractorshavetousepaintswithlow/novolatileorganiccompounds(VOC).Theuseofsuchpaintswillhelpreducepollutantemissions.WewillusepaintswithlowornoVOCforrepaintingthesoffitsofthesuspendedslabsinsidetheimmersedtubesoftheCrossHarbourTunnel.Weshallalsoencourageourmaintenancetermcontractorstousemorewater-basedpaintsforpaintingofconcretestructures.
Reducing the emission of gas exhaust of vehicles
Thedepartmenthas37departmentalvehicles,allfueledbypetrol.
Therewereseveralmeasurestakentohelpreducinggasexhaustfromourvehiclefleet.Guidelineswereissuedtoourmotordrivers,remindingthemtoswitchoffthevehicleswhilstwaitingsoastoreducetheemissionofexhaustedgasesandtoachievefuelsaving.Ourmotordriverswouldbeupdatedwithinformationconcerningeco-drivingfromtimetotime.
TherelatedemissionofNOxin2008was389kg,representingadecreaseof3.95%whencomparedwiththeemissionof405kgofNOxin2007.In2009,withthereplacementof�7vehiclesbyenvironmentallyfriendlyones,theemissionofgasexhaustfromourvehiclefleetisexpectedtobefurtherreduced.
Apartfromgovernmentvehicles,wealsoencouragedourcontractorstoprovideenvironmentallyfriendlycontractvehiclesfortheuseofourofficersresponsibleforconstructioncontracts.Wespecifiedincontractdocumentsthatthecontractvehiclesshouldbeequippedwithenginespropelledbyhybridofpetrol-electricity,oranyothernon-fossilfuelsasfaraspracticable.
32
Clean Air Charter and Green Office Management
Green Office Management
Tosustainagreenofficeenvironment,wehavefollowedthe3-Rprinciples
“Reduce,ReuseandRecycle”inourday-to-dayofficemanagement.Our
GreenCommitteewasfirstformedin�994todevelop,implementandmonitor
greenofficepractices.Weendeavourtoprovideagreenofficeenvironment
andadoptvariousgreenmeasuresinhousekeepingtoeconomisetheuseof
naturalresources.Themainfeaturesofthegreenmeasuresaresummarised
asfollows:
Indoor Air Quality Certification
•TheindoorairqualityofHMTGOhasfullycompiledwiththe
GoodClassoftheIndoorAirQualityObjectives.
Energy Saving
•AppointEnergyWardensineveryoffice/divisiontomonitor
theusageoflightandtokeeptheluminationlevelto
acceptableminimumlevel
•Reviewtheluminationlevelarisingfromthechangeofroom
use
•Maintainair-conditioningnotlowerthan25.5ºC
•Switchofflightsduringlunchorwhenstaffareawayfor
longhours
•Switchoffcomputerequipmentandelectricappliances
whennotinuse
•Encouragetheuseofstaircaseforinter-floortraffic
•Usetimerwatertapsintoilets
•Monitortheelectricityconsumptionofdifferentfloorsby
individualmetersinstalledoneachfloorofHMTGO
Waste Collection for Recycling
•Putupgreenboxestocollectreusableenvelopesandpaper
•Collectcomputerprintertonersandinkcartridgesfor
refillingandrecycling
•Putuprecyclingboxestocollectpaper,usedCD,plastic
bottlesandaluminumcansforrecycling
ENVIRONMENTAL REPORT 2008 33
Paper Saving
•Minimisephotocopyingpaperconsumption
•Usebothsidesofpaperforprintingandphotocopying
•Useblanksideofusedpaperfordrafting/photocopyingfor
internaldocument/correspondences/faxdocuments
•Useelectronicmeansextensivelyforcommunication(for
instance,useelectronicfilesandkeeptheuseofhard
copiestominimum)
•Reuseenvelopesandfilecovers
•Encouragetheuseofrecycledpaper
Wecontinuepromulgatingtheabovemeasuresonpaper
savingovertheyears.Withtheconcertedeffortsofour
staff,wehavefurtherachievedasavingof0.46%inpaper
consumptionin2008whencomparedwith2007.
Tomaintaintheimpetusofgreenmeasuresinhousekeeping,
weconductannualenvironmentalauditsinall�4officeslocated
indifferentpremises.Theobjectivesofconductingannual
environmentalauditsare:
(i) toassesscompliancewiththegreenhousekeeping
guidelines;
(ii) toidentifynon-complianceandrecommendremedial
actions;
(iii) topromotegoodenvironmentalmanagement;and
(iv) toincreasestaffawarenessofgreenmanagementand
occupationalsafetyandhealthinitiatives.
Paper Consumption
22591
25668
21395 2096519562 19471
18000
20000
22000
24000
26000
2003 2004 2005 2006 2007 2008
Year
Pape
r (Re
ams)
34
Environmental AwardsRespect - careful selection of species to suit various locations such as
ecological fish pondsRecognition - the Development Bureau recognizes our construction sites
with good site safety and environmental performanceReaffirmation - Highways Department determines to tackle new challenges
and to develop the best road and rail infrastructure in Hong Kong with the same spirit of Beijing Olympics
Planting underneath viaduct Planting adjacent to rural settlement
Planting adjacent to ecological fish pondPlanting for slope greening
Planting adjacent to noise barrier Planting to green transport corridor
35ENVIRONMENTAL REPORT 2008
The Best Landscape Award 2008 – Grand Award for Deep Bay Link
DeepBayLinkreceivedtheGrandAwardofExcellenceunderthepublicprojectscategoryanda
GoldAwardinTheBestLandscapeAward2008,whichwasorganisedbytheLeisureandCultural
ServicesDepartmentandco-organisedbytheHomeAffairsDepartment,theBuildingsDepartment,
theHongKongInstituteofArchitects,theHongKongInstituteofLandscapeArchitects,theInstitute
ofHorticulture(HongKong),theHongKongInstituteofSurveyors,theProfessionalGreenBuilding
Council,andtheHongKongAssociationofPropertyManagementCompanies.TheBestLandscape
Awardisorganisedeverytwoyearsand3�5entrieswerereceivedintheevent.
DeepBayLinkisadual3-lanecarriagewaywithatotallengthofabout5.4Km,extendingfrom
NgauHomShekinthenorthneartheshorelinetoLamTeiinthesouth.ThemajorityoftheDeep
BayLinkisintheformofviaduct.Specialplantingwascarriedouten-routeandspecieswere
carefullyselectedtosuitvariouslocationssuchasunderneathviaduct,adjacenttoruralsettlement
andecologicalfishponds,onslopes,earthmound,plantingareasadjacenttonoisebarrier,along
transportcorridorandatgreennodes.Itisourhonorthatthegoodgreeningworkofthisproject
wasaffirmedbythejuryandthepublic.Weanticipatethatourprojectswillkeepprovidingquality
greeningandenvironmentinassociatewithourroadworks.
Planting at green node Public Projects – Grand Award of Excellence (Soft Landscape Design Award)
Newspaper cutting from Ming Po
36
Environmental Awards
Outstanding Environmental Management and Performance Grand Award (OEMPGA) and Considerate Contractors Site Awards (CCSA)
In2008,ourconstructionsiteswerepresentedwithone
OutstandingEnvironmentalManagementandPerformanceGrand
Award(OEMPGA)andfourConsiderateContractorsSiteAwards
(CCSA).TheAwardSchemewasorganizedbytheDevelopment
Bureautorecognizeconstructionsiteswithgoodsitesafetyand
environmentalperformance,andconsiderateattitudetowardsthe
neighbourhoodandthepublic.
Display board for Highways Department Term Management Contract (Maintenance of High Speed Roads in New Territories West and Kowloon 2004-2008)
Presentation of medal for OEMPGA Silver Award – Highways Department Term Management Contract (Maintenance of High Speed Roads in New Territories West and Kowloon 2004-2008)
Prize Presentation
Flower display
Display shows design theme “Highways for Olympics”
37ENVIRONMENTAL REPORT 2008
Hong Kong Flower Show 2008 – Grand Award for Unique Feature (Landscape Display)
Withthesupportofthemanagement,wehavewonthe
GrandAwardforUniqueFeature(LandscapeDisplay),
whichisthehigheststandingoftheuniquefeaturegroup.
ToechowiththethemeoftheHongKongFlowerShow
2008,“BeijingOlympics”,ourdesignhasadoptedthe
sameconcept,whichis“HighwaysforOlympics”.Vibrant
blossomsweaveintoroadandrailgeometrythroughout
theHKSARterritory.Thissignifiesourstrongcommitment
toprovidefastandcomfortabletransportnetworkwhile
allowingaflexibleandopenapproach.Thefocusofthe
displayisa5mhighbridgestructureandcarriageway
scenethroughrural(informal)tourban(formal)settingsby
afloweringsea.Thisreflectsourroadsandrailsnetworks
overtheterritory.Adirectionalsigninthecentreofthe
bridgeshowingthewaytotheHongKongEquestrian
andBeijingOlympicEventsreinforcesthemoodof
celebration.Treesandflowersareplantedinplanterswith
benchandlamppostsinstalledwithhangingflowerpots.
Thissymbolizesourefforttoenhancethestreetscape.
Aseriesofdisplaypanelswithourkeyprojectsnewly
completed,underconstructionandunderplanningstage
areshownalongthepathway.ThisdemonstratesHighways
Department’sdeterminationtotacklenewchallengesand
developthebestroadandrailinfrastructureinHongKong
withthesamespiritofBeijingOlympics.
38
Achievement of Environmental Objectives and Targets and Environmental Targets for 2009
“We recognize the importance of sustainable development and have been striving for continual improvement in the protection of environment by setting objectives and targets to improve our environmental performance.”
38
39ENVIRONMENTAL REPORT 2008
Wesetclearobjectivesandtargetsinourenvironmentalmanagementplaneveryyear,
andarepleasedtoconcludethatmostofourtargetsfor2008weresatisfactorilymet.
Ourachievementsaresummarizedasfollows:
Achievement of Environmental Objectives and Targets
ObjectivesTargets set for
2008Achievement
(as at 31 Dec 2008)
Installation of electronic ballasts with a view to reducing energy consumption
To complete installation of 3,000 electronic ballasts for road lighting
3,000 electronic ballasts were replaced
Installation of dimmers at footbridges with a view to reducing energy consumption
To complete installation of dimmers at 10 footbridges
10 footbridges were installed with dimmers
Implementation of Clean Air Charter initiative
Energy and Emission Management Team to arrange an Energy Audit to examine energy consumption equipment in Ho Man Tin Government Offices (HMTGO) in early 2008 and to recommend measures in minimising energy consumption and reducing emissions
Energy audit for HMTGO was completed in April 2008 with five Energy Management Opportunities identified
Encouraging the use of recycled paper in the Department
To raise the percentage of recycled paper from 90% to 92% of the total consumption
Target was achieved
Further reduction in electricity consumption in individual floors of HMTGO where the Departmental Headquarters are located
To delamp some of the lamps of the corridors on UG/F to 6/F in early 2008
The exercise will continue until early 2009
Recycling materials To progressively introduce the use of asphalt incorporating reclaimed asphalt pavement in roadworks
To complete the study on asphalt rubber and asphalt rubber mixtures
Reclaimed asphalt pavement was used in the NT West high speed road term contract and the Tuen Mun Road reconstruction contract
The study was completed in December 2008
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Achievement of Environmental Objectives and Targets and Environmental Targets for 2009
Environmental Targets for 2009
Wealwaysstriveforcontinualimprovementandshallcontinuein2009tomaintaina
sustainableenvironmentwithmoreenergysaving,greeningandhousekeepingmeasures
aswellasresearchinitiativesintheprotectionofenvironment.Wewillmakeevery
endeavourtoachievethetargetssetbelow.
ObjectivesTargets set for
2008Achievement
(as at 31 Dec 2008)
Planting trees and shrubs To plant 250,000 trees/shrubs in the vicinity of major highway projects
295,000 trees/shrubs were planted
Procuring environmentally-friendly contract vehicle
To procure at least one environmentally-friendly petrol private car model in each of the new major works contracts
Target was achieved for all 4 new major works contracts
Adopting site office equipment with energy saving label
To use site office equipment with energy saving labels in all new major works contracts
Target was achieved for all 4 new major works contracts
Dust emission reduction To include a particular specification clause for dust suppression in all new major works contracts
Target was achieved for all 4 new major works contracts
Objectives Targets
Installation of electronic ballasts with a view to reducing energy consumption
To complete installation of 3,000 electronic ballasts for road lighting
Installation of dimmers at footbridges with a view to reducing energy consumption
To complete installation of dimmers at 10 footbridges
Energy saving in Ho Man Tin Government Offices (HMTGO) where Departmental Headquarters are located (setting electricity saving target based on the results of first energy audit)
To implement measures in minimising electricity consumption by:(a) delamping 100 nos. of lamps on UG/F
to 6/F corridors of HMTGO(b) replacing 1,000 nos. of T8 fluorescent
lamps with T5 fluorescent lamps(c) replacing 15 nos. of T8 exit signs with
LED signs
4�ENVIRONMENTAL REPORT 2008
We hope you will find that this publication gives a good snapshot of our dedication and efforts in environmental protection. Should you have any comments or feedback on our work, please share with us your views through our homepage on the Internet (address: http://www.hyd.gov.hk). Thank you.
Objectives Targets
Improving indoor air quality To continue upkeeping the indoor air quality at or above the level of “Good Class” in HMTGO
Adopting measures in water conservation To educate staff on water conservation and to consider installing dual-flush toilets and automatic water taps in the toilets of HMTGO
Encouraging the use of recycled paper in the Department
To raise the percentage of recycled paper from 92% to 94% of the total consumption
Recycling materials To carry out a site trial on the use of concrete paving blocks incorporating recycled glass cullets on a footway and monitor its performance
To continue introducing progressively more use of asphalt incorporating reclaimed asphalt pavement in road works
To introduce the use of thermal patcher for minor asphalt pavement maintenance in the two new road maintenance contracts due to commence in April 2009
Developing low noise road surfacing (LNRS) materials
To complete the study on the noise reduction performance of five different types of LNRS materials laid at Fanling Highway
Planting trees and shrubs To plant 250,000 trees/shrubs in the vicinity of highway projects
Adopting site office equipment with energy saving label
To use site office equipment with energy saving labels in all new major works contracts
Procuring environmentally-friendly contract vehicle
To procure at least one environmentally-friendly petrol private car model in each of the new major works contracts
Reducing dust emission To include a particular specification clause for dust suppression in all new major works contracts