Annual Cycles of the Traffic Accident of a City-某城

AnnualCyclesoftheTrafficAccidentofaCity-某城市交通事故年度发生周期AnnualCyclesoftheTrafficAccidentofaCityTrafficaccidentsareoneofthemostseriousproblemsinmoderncities.Manypeoplehavelosttheirliveseveryyear.Thetwographsshowthecomparisonoftrafficaccidentcyclesinacityforthepasttwoyears(2003and2002).Ineachgraph,thearrowindicatestheannualaveragepointforeachtrafficaccident.Thechartfor2003tellsusthatmosttrafficaccidentshappenedinDecember,whileearlyspring(March)hasarelativelyhigherpercent.TrafficaccidentsdecreasefromApriltoOctober,andJulyhasthelowestpercentageoftrafficaccidentsfor2003.In2002,thelowpointslastedforfivemonths,fromMay,toSeptember.TheyearlypeakofaccidentswasinFebruary.Incomparisonwiththatin2003,thepercentageofpeakpointsdecreasedby30%.Thevariationbetweenmonthlytrafficaccidentpercentagesismuchlessthanthatof2003.