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针对高速公路客货分线相关理论及行业规范的不完善问题,通过分析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种形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:当计算阈值大于5时,考虑实施客货分线;当道路交通量小于3 500pcu·h~(-1)且货车比率小于30%时,高速公路不宜实施客货分线;当道路交通量大于4 500pcu·h-1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 500pcu·h~(-1)且货车比率大于40%时,高速公路适宜实施客货分线,且单向客车和货车专用车道数分别为2和3条。
In order to solve the problem of imperfect relations between the theory of passenger and cargo sub-lines of expressways and the industry standard, this paper proposes the concept of passenger and freight sub-lines of expressways by analyzing the basic theories and implementation of the separation of passengers and goods at home and abroad. This paper studies the necessity of the construction of passenger and cargo sub-lines, and uses AHP and VISSIM to conduct qualitative and quantitative analysis. The results show that: when the calculation threshold is greater than 5, the passenger-cargo division is considered; when the traffic volume is less than 3500 pcu · h -1 and the ratio of freight cars is less than 30% When the traffic volume is more than 4 500pcu · h-1 and the truck ratio is 30% -40%, the expressway is suitable for passenger and cargo subdivision, and the number of unidirectional passenger and freight lanes are both 2. When the traffic volume is larger than 4 500pcu · h ~ (-1) and the truck ratio is more than 40%, the expressway is suitable for passenger and cargo subdivision, and the number of dedicated lanes for unidirectional passenger cars and trucks is 2 and 3, respectively.