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1、外文资料翻译Everydayasignificantpercentageofdriversinsingle-occupancyvehiclessearchforaparkingspace.Additionally,lessexperienceddriversorout-of-townersfurthercontributetotheincreaseoftrafficcongestion.Searchforavacantparkingspaceisatypicalexampleofasearchproces
2、s.Everyparkingsearchstrategyiscomposedofasetofvaguerules.Itisusuallydifficulttodescribetheserulesexplicitly.Thetypeoftheplannedactivity,timeofaday,dayoftheweek,currentcongestiononparticularroutes,knowledgeofcitystreets,andpotentiallyavailableparkingplace
3、shavesignificantinfluenceonachosenparkingsearchstrategy.Ontheotherhand,thedriversusuallydiscoverdiffierentparkingalternativesonebyoneinatemporalsequence.Clearly,thistemporalsequencehasaverystronginfluenceonthedriver'sfinaldecisionabouttheparkingplace[19].Dur
4、ingthepasttwodecades,trafficauthoritiesinmanycities(Helsinki,Cologne,Mainz,Stuttgart,Wiesbaden,Aalborg,Hague)havestartedtoinformandguidedriverstoparkingfacilitieswithreal-timevar-iablemessagesigns[directionalarrows,namesoftheparkingfacilities,status(full
5、,notfull,numberofavailableparkingspaces,etc.)].Informationaboutthenumberofavailableparkingspacescouldbedisplayedonthemajorroads,streetsandintersections,oritcouldbedistributedthroughtheInternet.Itislogicaltoaskthequestionaboutthebenefitsoftheparkingguidanc
6、esystems.Currentpracticeshowsthatparkingguidancesystemsusuallydonotchangetheoccupancyrateoraverageparkingduration.Driverseasilybecomefamiliarwiththeparkingguidancesystems,andmajorityofthemuse,thrustandappreciatethehelpofthesystems[20].Guidancesystemssign
7、ificantlyincreasethe10probabilityoffindingvacantparkingspace,mitigatefrustrationofthedrivers–visitorsunfamiliarwiththecitycenter,decreasethequeuesinfrontofparkinggarages,decreasethetotalamountofvehicle-milestraveled(particularlyinthecitycenters),decreaset
8、heaveragetriptime,energyconsumption,andairpollution.Parkingguidancesystemisapartofcomprehensiveparkingpolicyandtrafficmanagementsystem,whoseotherelementsarestreetparkingcontrol(includingsanctionsfortheillegallyparkedvehicl
