CAJ | 학술논문

为分析无信号公路平面交叉口上游功能区车辆通行安全和效率问题，针对驶入交叉口前驾驶员驾驶行为决策过程及其影响因素进行分析。对在南京采用视频采集的数据进行处理，提取驾驶员减速行为的速度和减速度数值并对它们的特性进行定量分析。采用方差分析得出各影响因素对速度、减速度的影响程度，并且建立减速度与各影响因素之间的减速驾驶行为模型。结果表明，车辆在无信号控制公路平交口上游功能区内车速呈现明显的下降趋势，且速度的分布逐渐由离散变得集中；车辆其减速度的变化过程是先变大后变小；初速度V A0、左右转变量被选入模型并对减速模型有显著作用。从而为无信号控制公路平交口交通设计、政策和改善安全提出建设性意见和提供理论基础。
위분석무신호공로평면교차구상유공능구차량통행안전화효솔문제，침대사입교차구전가사원가사행위결책과정급기영향인소진행분석。대재남경채용시빈채집적수거진행처리，제취가사원감속행위적속도화감속도수치병대타문적특성진행정량분석。채용방차분석득출각영향인소대속도、감속도적영향정도，병차건립감속도여각영향인소지간적감속가사행위모형。결과표명，차량재무신호공제공로평교구상유공능구내차속정현명현적하강추세，차속도적분포축점유리산변득집중；차량기감속도적변화과정시선변대후변소；초속도V A0、좌우전변량피선입모형병대감속모형유현저작용。종이위무신호공제공로평교구교통설계、정책화개선안전제출건설성의견화제공이론기출。
In order to study traffic safety and efficiency at upstream functional areas of unsignalized intersections, the decision-making process and its influential factors of driving behaviors before entering into intersections are studied. The data is collected by video in Nanjing,China.The speed and deceleration of decelerating driving behaviors are extrac-ted,and their features are quantitatively analyzed.A variance analysis method is used to estimate the degree of influence of each influential factors on the speed and deceleration,and a model of driving behaviors between deceleration and influ-ential factors is developed.The results show that,the speed of vehicles has an obvious downtrend at upstream functional areas of unsignalized intersections,and speed distribution gradually changes from discrete to centralize.The changing process of vehicles'deceleration is from large to small.The initial speed (V A0 )and left/right steering rotation angle are selected,and have significant effects on the model.The study provides constructive suggestions and theoretical basis to improve intersection design,traffic policy and the safety.