武汉理工大学学报(交通科学与工程版)
武漢理工大學學報(交通科學與工程版)
무한리공대학학보(교통과학여공정판)
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY(TRANSPORTATION SCIENCE & ENGINEERING)
2014年
4期
757-762
,共6页
无信号交叉口%车流当量期望冲突量%交通安全%冲突严重性
無信號交扠口%車流噹量期望遲突量%交通安全%遲突嚴重性
무신호교차구%차류당량기망충돌량%교통안전%충돌엄중성
un-signalized intersection%expected traffic conflict unit%traffic safety%severity of conflict
在分析交通冲突特性的基础上,考虑交叉、合流与分流冲突发生的潜在概率、交通流量及车辆位置等因素,以期望值的观点,建立了各冲突类型的期望冲突量模型;由于不同类型的交通冲突对路口潜在威胁及严重性也不同,在分析各冲突类型易肇事的概率和肇事后严重程度的基础上,给出了3种冲突类型不同的权重值;并在期望冲突量和权重值辆指标的基础上,构建无信号交叉口车流当量期望冲突量,以一无信号交叉口为例,验证其实用性。
在分析交通遲突特性的基礎上,攷慮交扠、閤流與分流遲突髮生的潛在概率、交通流量及車輛位置等因素,以期望值的觀點,建立瞭各遲突類型的期望遲突量模型;由于不同類型的交通遲突對路口潛在威脅及嚴重性也不同,在分析各遲突類型易肇事的概率和肇事後嚴重程度的基礎上,給齣瞭3種遲突類型不同的權重值;併在期望遲突量和權重值輛指標的基礎上,構建無信號交扠口車流噹量期望遲突量,以一無信號交扠口為例,驗證其實用性。
재분석교통충돌특성적기출상,고필교차、합류여분류충돌발생적잠재개솔、교통류량급차량위치등인소,이기망치적관점,건립료각충돌류형적기망충돌량모형;유우불동류형적교통충돌대로구잠재위협급엄중성야불동,재분석각충돌류형역조사적개솔화조사후엄중정도적기출상,급출료3충충돌류형불동적권중치;병재기망충돌량화권중치량지표적기출상,구건무신호교차구차류당량기망충돌량,이일무신호교차구위례,험증기실용성。
First based on analyzing the characteristics of traffic conflict ,relevant factors of conflicts are investigated ,such as probability of conflicts ,flow ,and vehicle location ,and the crossing ,merging , and diverging conflicts models are setup based on expected values .Due to different types of traffic conflicts caused different potential treats and collision severities ,the research estimate the weighted values of crossing ,merging ,and diverging conflicts through analyzing traffic conflict potential proba-bility and collision severities based real accident data .Then ,Expected traffic conflict unit model for un-sig-nalized intersection is developed based expected traffic conflict and corresponding weighed values .Finally ,a un-signalized intersection is applied to a case study for revealing the validity of the research .