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1、Scootlib>TrafficcongestionTrafficcongestionisaconditiononroadnetworksthatoccursasuseincreases,andischaracterizedbyslowerspeeds,longertriptimes,andincreasedvehicularqueueing.Themostcommonexampleisthephysicaluseofroadsbyvehicles.Whentrafficdemandisgreatenoughthattheinteractionbetweenve
2、hiclesslowsthespeedofthetrafficstream,thisresultsinsomecongestion.Asdemandapproachesthecapacityofaroad,extremetrafficcongestionsetsin.Whenvehiclesarefullystoppedforperiodsoftime,thisiscolloquiallyknownasatrafficjamortrafficsnarl-up.Trafficcongestioncanleadtodriversbecomingfrustrateda
3、ndengaginginroadrage.TrafficcongestionTheurbantrafficisgettingincreasinglycrowdednowadaysallaroundtheworld,especiallyinChina.TrafficcongestionisoneofthebiggestheadachesforChina'snewleaderswhoarebankingonanurbanizationstrategytohelpdriveeconomicgrowth.Abicyclesharingsystemisaservicein
4、whichbicyclesaremadeavailableforsharedusetoindividualsonaveryshorttermbasis.Bikeshareschemesallowpeopletoborrowabikefrompoint"A"andreturnitatpoint"B".Bike-sharebeganinEuropein1965,andaviableformatemergedinthemid-2000sthankstotheintroductionofinformationtechnology.AsofJune2014,publicb
5、ikesharingsystemswereavailableonfivecontinents,including712cities,operatingapproximately806,200bicyclesat37,500stations.methodsBicyclesharingsystemVélibLYONAutolib'isanelectriccarsharingservicewhichwasinauguratedinParis,France,inDecember2011.Itcomplementsthecity'sbikesharingscheme,Ve
6、lib',whichwassetupin2007.TheAutolib'schemeintendstodeploy3,000all-electricBolloréBluecarsforpublicuseonapaidsubscriptionbasis,basedaroundacitywidenetworkofparkingandchargingstations.Asof30September2013,over2,000Bluecarshadbeenregisteredfortheservice,andtheschemehad105,000registeredsu
7、bscribersbymid-October2013;Autolib'currentlyoffersover4,000chargingpoints.Autolib'hasbeguneffortstoexpanditsbusinesstootherFrenchcities,andhasalsosignedadealtobeginoperatingintheAmericancityofIndianapolisin2014.methodsElectriccarsharingserviceTheParisianfamilyofenvironmentally-friend
8、lyvehiclesco