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1、外文资料翻译Everydayasignificantpercentageofdriversinsingle-occupancyvehiclessearchforaparkingspace.Additionally,lessexperienceddriversorout-of-townersfurthercontributetotheincreaseoftrafficcongestion.Searchforavacantparkingspaceisatypicalexampleofasearchprocess.Everyparkingsearchstrategyiscomposedofasetof
2、vaguerules.Itisusuallydifficulttodescribetheserulesexplicitly.Thetypeoftheplannedactivity,timeofaday,dayoftheweek,currentcongestiononparticularroutes,knowledgeofcitystreets,andpotentiallyavailableparkingplaceshavesignificantinfluenceonachosenparkingsearchstrategy.Ontheotherhand,thedriversusuallydiscov
3、erdiffierentparkingalternativesonebyoneinatemporalsequence.Clearly,thistemporalsequencehasaverystronginfluenceonthedriver'sfinaldecisionabouttheparkingplace[19].Duringthepasttwodecades,trafficauthoritiesinmanycities(Helsinki,Cologne,Mainz,Stuttgart,Wiesbaden,Aalborg,Hague)havestartedtoinformandguidedr
4、iverstoparkingfacilitieswithreal-timevar-iablemessagesigns[directionalarrows,namesoftheparkingfacilities,status(full,notfull,numberofavailableparkingspaces,etc.)].Informationaboutthenumberofavailableparkingspacescouldbedisplayedonthemajorroads,streetsandintersections,oritcouldbedistributedthroughthe
5、Internet.Itislogicaltoaskthequestionaboutthebenefitsoftheparkingguidancesystems.Currentpracticeshowsthatparkingguidancesystemsusuallydonotchangetheoccupancyrateoraverageparkingduration.Driverseasilybecomefamiliarwiththeparkingguidancesystems,andmajorityofthemuse,thrustandappreciatethehelpofthesystems
6、[20].Guidancesystemssignificantlyincreasetheprobabilityoffindingvacantparkingspace,mitigatefrustrationofthedrivers–visitorsunfamiliarwiththecitycenter,decreasethequeuesinfrontofparkinggarages,decreasethetotalamountofvehicle-milestraveled(particularlyinthecitycenters),decreasetheaveragetriptime,energy
7、consumption,andairpollution.Parkingguidancesystemisapartofcomprehensiveparkingpolicyandtrafficmanagementsystem,whoseotherelementsarestreetparkingcontrol(includingsanctionsfortheillegallyparkedvehicles
