Thereisnodoubtthattrafficcongestionhaslongbeenaproblemofgreatconcernandcomplaintinbigcities.Somemajorroadsargularlychokedwithtrafficinrushhours.Thelimitedtransportcapacitycontributeslargelytothevexingproblem.Ithascausedalotofinconveniencetopeople'slifeandwork.Forexample,peoplehavetosetoffwellinadvancetogettoworkontimeandcomebackverylatewhentheirworkisover.Therearemanycausesforthisproblem,butthefollowingmaybethemostimportantones.Thefirstcauseisthegreatincreaseinthenumberofprivatecars.Carstakeupmorespacebuttheycarryfewerpeople.Someprivatecardrivers,ignoringtrafficregulations,driveonlyforthesakeoftheirownconvenience,blockingthewayofotherpublictransportationvehicles.Thesecondcauseistheslowandinefficientconstructionandimprovementoftheroadsandstreets.

　　Withalargepopulationandnumbersofautomobilesincreasing,someroadsstillremainunimproved,whichwillsurelyleadtoproblems.Thelastcauseistheinsufficientmanagementofthetrafficsystemandthepeople'slackofawarenessoftrafficregulations.Manypedestrianscrossthestreetsevenwhenthetrafficlightsareagainstthem,whichisanobstacletotheflowoftraffic.Theproblemoftrafficcongestionisanurgentonebecauseitconcernsthesafetyallofus.So,howtosolvetheheadache?.

　　Theexistingsolutionstotrafficjammainlyaimatcreatingmetrobussystemsandbroadeningmajorroads.Wideningtheexistingroadscansolvetrafficsnarlsonsomelevel.Soaringcarownershipcompoundsthechronicannoyingproblem,sowemustsharplyreducetheheavyrelianceoncarsanddriveashifttothemasstransportation.Itisacheapandgoodway.Wecancreateasystemofcustomizedbusroutesandhighlightthedevelopmentofsubways,trolleysandlightrail.Theeffectivecombinationofthesesolutionswillenabletheurbanareastopossessasmoothtraffic.

　　啊？