| 广义出行费用下的冰雪条件路网容量可靠性 |
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| 引用本文： | 冷军强,冯雨芹,张亚平,祁松. 广义出行费用下的冰雪条件路网容量可靠性[J]. 哈尔滨工业大学学报, 2011, 43(2): 92-97 |
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| 作者姓名： | 冷军强 冯雨芹 张亚平 祁松 |
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| 作者单位： | 哈尔滨工业大学,哈尔滨工业大学 |
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| 基金项目： | 省攻关项目 省自然基金 其它 |
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| 摘 要： | 为体现冰雪条件下出行者路径选择行为,准确评价路网容量可靠性,采用行程时间、行程时间可靠性及安全性的加权和定义广义出行费用,引入坡道行驶安全系数量化安全性出行费用,建立基于广义出行费用的随机用户平衡分配模型.从路段角度定义容量可靠性的概念,建立基于广义出行费用的路网容量可靠性模型,给出Monte Carlo仿真和交通规划...
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| 关 键 词： | 广义出行费用 容量可靠性 蒙特卡罗仿真 冰雪条件 安全性 |
| 修稿时间： | 2010-04-10 |
Road network capacity reliability based on generalized travel cost under ice and snowfall conditions |
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| LENG Jun-qiang,FENG Yu-qin,ZHANG Ya-ping and QI Song. Road network capacity reliability based on generalized travel cost under ice and snowfall conditions[J]. Journal of Harbin Institute of Technology, 2011, 43(2): 92-97 |
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| Authors: | LENG Jun-qiang FENG Yu-qin ZHANG Ya-ping QI Song |
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| Affiliation: | School of Automobile Engineering,Harbin Institute of Technology at Weihai,264209 Weihai,Shandong,China;School of Automobile and Transportation Engineering,Heilongjiang Institute of Technology,150050 Harbin,China;School of Transportation Science and Engineering,Harbin Institute of Technology,150090 Harbin,China;School of Transportation Science and Engineering,Harbin Institute of Technology,150090 Harbin,China;Representative Office of PLA in Shenyang Railway Administration,028000 Tongliao,Inner Mongolia,China) |
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| Abstract: | To describe the characteristics of travelers’ route choice and estimate capacity reliability of road network with ice and snowfall,the function of generalized travel cost was defined by using the weighted sum of travel time,travel time reliability and safety,and the safety coefficient of driving on ramp was introduced to quantify the safety cost index of driving under ice and snowfall conditions,so that a stochastic user equilibrium(SUE) assignment model was formulated on the assumption of minimization of generalized travel cost in choosing path.The capacity reliability was defined based on the viewpoint of links and its model of road network was set up.Moreover,an assessment method integrated Monte Carlo simulation and solution of traffic plan models was developed.The simulation results show that the weighted coefficients have conspicuous impacts on reliabilities of links and road network,and the adventure travelers’ attitude decreases the road network reliability. |
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| Keywords: | generalized travel cost capacity reliability Monte Carlo simulation ice and snowfall conditions safety |
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