基于交通仿真的高速公路客货分线设置条件

针对高速公路客货分线相关理论及行业规范的不完善,结合国内外客货分离的基本理论和实施状况,提出了高速公路客货分线的概念,并对客货分线的3种型式进行了适应性研究.探讨了客货分线建设的必要性,并运用层次分析法和VISSIM仿真对其进行定性和定量分析.结果表明:当由层次分析综合评判法计算的值大于5时,考虑实施客货分线;当道路交通量小于3 500辆/h且货车比率小于30%时,高速公路不适宜实施客货分线;当道路交通量大于4 500辆/h且货车比率为30%~40%时,高速公路适宜实施客货分线,且单向客货专用车道数均为2条;当道路交通量大于4 500辆/h且货车比率大于40%时,高速公路适宜实施客货分线,且单向客车专用车道数为2条,货车专用车道数为3条.

Setting Conditions of Highway Separated Line Between Passenger and Freight Transportation Based on Traffic Simulation

To overcome the imperfection of the relevant theories and industry norms of highway separated line between passenger and freight transportation, through the analysis of the basic theory and the status of implementation of domestic and international passenger separation, the concept of highway separated line between passenger and freight transportation was proposed and the study of the adaptability of three types was made. The necessity of the construction of highway separated line between passenger and freight transportation was discussed, and the analytic hierarchy process ( AHP) and VISSIM simulation was applied to qualitative and quantitative analysis. The results show that when the value of analytic hierarchy process comprehensive evaluation method is more than 5 , the implementation of separated line shall be considered. When the traffic volume is less than 3500 pcu/h and the freight ratio is less than 30%, the highway is not suitable for the implementation of the separated line. When the traffic volume is greater than 4500 pcu/h and freight rate is between 30% and 40%, the highway is suitable for implementation of the separated line and the number of one-way lane is 2 . When the traffic volume is greater than 4500 pcu/h and truck ratio is greater than 40%, the highway is suitable for implementation of the separated line and one-way bus lane number is 2 , and the truck lane number is 3 .