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1、SpecialIssueArticleAdvancesinMechanicalEngineering2015,Vol.7(11)1–10ÓTheAuthor(s)2015FeasibilityanalysisofphasetransitionDOI:10.1177/1687814015618905aime.sagepub.comsignalsbasedone-bikeriderbehavior11231ShengDong,JibiaoZhou,LiZhao,KeshuangTangandRenfaYan
2、gAbstractThisarticleevaluatesthefeasibilityoftwoscenariosofphasetransitionsignals,thatis,theflashinggreentogetherwithred–yellowlightandthegreencountdowntogetherwithredcountdown,atsignalizedintersectionsintermsofe-bikeriderbehavior.Anevaluationframeworkis
3、firstproposed.Duringthephasetransition,thestop-goandstart-upbeha-vioralparametersarecollectedatfourintersectionsinShanghai,China.Sensitivityanalysisisthenperformedtoidentifythemostsignificantfactorsthatinfluencetheoccurrenceoftrafficconflictsduringthepha
4、setransition.Basedontheaboveanalysisresults,casestudieswerefinallydonetolookintosafetyperformanceofthetwoscenariosofphasetran-sitionsignals,indicatedbythedistributionsofpostencroachmenttimeattheconflictpointandtheoccurringprobabilityofextremelysmallposte
5、ncroachmenttimes.Researchresultshowsthetransitionsignalcombinationofgreencount-down+redcountdowntendstocausetrafficaccidentsmoreeasilyandthuslesssafecomparedtothetransitionsignalcombinationofflashinggreen+red-yellow.Unliketheconventionalmethodgenerallyba
6、sedonthedeterministictrafficflowtheory,theproposedmethodologyhasawideapplication.Withtheaidofit,trafficengineersarecapableofdesign-ingtransitionsignalsinamorescientificmanner.KeywordsTransitionsignals,feasibilityanalysis,e-bikes,riderbehavior,trafficconf
7、lictDatereceived:17July2015;accepted:25October2015AcademicEditor:YongjunShenIntroductionPhasetransitionreferstothetimeperiodbetweengreenphaseandredphase,whichservesasthetransferElectricbicycle,orelectricallyassistedbicycle(i.e.ofright-of-way.Itgenerallyi
8、ncludestwoforms:(1)yel-e-bike),isatypeofgreentransportwhichwinsitslowlight,greencountdown(GC),flashinggreen(FG),popularitywithadvantagessuchashighvelocityandandsoforthattheendofgreenphaseand(2)redeasyoperation.Thenumberofe
