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、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)。以年度事故數和嚴重碰撞事故數為因變量，分析了預測變量與因變量之間的聯系。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生影響。這些發(fā)現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