The Effect of Road Characteristics and Traffic Factors on Road Traffic Accident Frequency and Injury Severities-case Study of N.pdf

1、大連理工大學碩士學位論文碩士學位論文THEEFFECTOFROADCHARACTERISTICSANDTRAFFICFACTORSONROADTRAFFICACCIDENTFREQUENCYANDINJI瓜YSEVERITIES：CASESTUDYOFNEBRASKA作者學科、姓名：專業(yè)：NGUYENVANDUC學號：2羔3∞墊2指導教師：完成日期：LIUI認I大連理工大學DalianUniversityofTechnology大連理工

2、大學碩士學位論文TheEffectofRoadCharacteristicsandTra伍cFactorsonRoadTrafncAccidentFrequencyandInjurySeverities：CaseStudyofNebraskaAbstract為了分析交通因素和道路特征對交通事故數(shù)和傷亡程度的影響，運用了帶有預測變量的零膨脹模型，這些預測變量分為道路設施(如車道寬度、通過的車道數(shù)、路肩、中間帶、分隔帶長度、是否存在路邊停車

3、等)和交通條件(如單車道年均日交通量、限速)。以年度事故數(shù)和嚴重碰撞事故數(shù)為因變量，分析了預測變量與因變量之間的聯(lián)系。研究旨在探尋哪些道路設施或交通條件可能對交通事故和傷亡產(chǎn)生影響。這些發(fā)現(xiàn)將對政策制定者在道路安全政策的實行方面有所幫助。Thisstudyfocusedonanalyzingtheeffectoftrafficfactorsandroadcharacteristicsonthenumberoftrafficacciden

4、tsandinjuryseveritiesThemethodusedhereiszeroinflatedmodelswithpredictorvariablesincludingroadinfrastructuresuchaslanewidth，numberofthroughlanes，shouldermedian，segmentlengthmiles，presenceofstreetparkingandSOon；andtrafficf

5、actorssuchasaverageannualdailytrafficperlane(aadtpln)，andspeedlimitTheauthorexplainedtherelationshipbetweenthesepredictorvariableswithyearlydataofnumberofaccidentsandcrashseveritylevelsasdependentvariablesTheaimofthisstu

6、dyistodeterminewhichroadcharacteristicsandtrafficfactorsaremorelikelytoinfluencethe疔equencyoftrafficaccidentsandinjuryseveritiesSuchfindingcouldbeusefultopolicymakersintheimplementationofroadsafetystrategiesforthecasestu