Airportsandsubwayswillguidethetrafficflowfromthelefttrackandtherighttracktoavoidcon-gestion.TrafficpoliceinYangpuDistricthasrecentlytriedtheap-proachonzebrastripesbasedontheideafromajuniormiddleschoolstudent.

　　AccordingtoaprincipalofNo.6Detachment of Yangpu DistrictTrafficPolice,theyhavetriedtheapproach out with children inYangpuDistrictNo.2ArtKinder-garten.Theteachersguidethechil-drenstoodonthetwosidesoftheroadcrossingandcrossedthestreetrandomlyforafewtimestosimulatetherealtrafficflow.Theaveragestreetcrossingtimewasaround13to14seconds.Then,thechildrenwereguidedtocrossthestreetsfromtherightsideortheleftsideintentionallyforafewtimes.Theaveragestreetcrossingtimewasaround9to10seconds.Incompar-ison,theintentionallystreetcrossingfromdifferentsidesofthezebrastripesimprovedthetimeefficiencybyaboutonefourth.

　　WangShenlan,astudentinGradeOneof71MiddleSchoolAf-filiatedtoTongjiUniversitywastheinventorofthisapproach.WanghassuccessfullyappliedtotheStateIntellectual Property Office forpatent.Thetrafficpolicesaidtheywillimprovetheapproachandtryitoutonsomestreets.Iftheresultisgood,itislikelytobepromotedinlargescale.