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ID:11630004
大小:2.04 MB
页数:23页
时间:2018-07-13
《交通拥堵traffic jam》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、2013.5.21TrafficJAMPresentsituationNegativeimpactsCausesCountermeasuresContents1234Wuhanblossomsuniversity1.PresentsituationDelay:wastingtime.Environment:airpollutionandhealthdangerEconomicloss:energyseriouslyTrafficaccident…2.NegativeimpactsTheessenceoftrafficjamDemand(Traf
2、ficdemand)supply(Trafficcapacity)3.CausesThegreatincreaseinthenumberofprivatecars.Theslowandinefficientconstructionandimprovementoftheroadsandstreets.Theinsufficientmanagementofthetrafficsystem.People’slackofawarenessoftrafficregulations.Others:weather,trafficaccidents…4.Cau
3、sesCountermeasuresHowcantrafficjamsbesolved?Nosolve,justeaseToincreasesupplycreatingnewroutesincreasingtrafficcapacitythroughtrafficmanagementimprovementsbasedontheexistingroadsToreducingdemandparkingrestrictionsroadpricingpolicyapproaches4.Countermeasures4.CountermeasuresRo
4、adinfrastructureUrbanplanningandlanduseTrafficmanagementOtherassociatedDevelopmentofpublictransportsRoadinfrastructureJunctionimprovementsgradeseparation,usingbridgesortunnels.reducingjunctionsReversiblelanes,wherecertainsectionsofhighwayoperateintheoppositedirectionondiffer
5、enttimesoftheday/daysoftheweek,tomatchasymmetricdemand.RoadinfrastructureSeparatelanesforspecificusergroups(usuallywiththegoalofhigherpeoplethroughputwithfewervehicles)BuslanesaspartofabuswaysystemRoadinfrastructureHOVlanes,forvehicleswithatleastthree(sometimesatleasttwo)rid
6、ers,intendedtoencouragecarpoolingHOV——HighOccupancyVehicleRoadinfrastructureForexample:Thecityisdividedinto55villages.Themeaningoftheir"community"isdifferentwithourresidentialarea.Withinacommunity,people'sworkandlifeleisurebasicallycanbesolved.officebuildingshospitalsschools
7、parksshoppingcentersrestaurantsUrbanplanningandlanduseResidentialbuildingsUseofso-calledIntelligenttransportationsystem,whichguidetraffic:TrafficmanagementTrafficreporting,viavariablemessagesignsinstalledalongtheroadway,toadviseroadusers.trafficsignalcoordinationtrafficgreen
8、wavecontroltrafficredwavecontrolTrafficmanagementTrafficcongestionchargeTra
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