Estimation of Travel Time Reliability Using Stochastic User Equilibrium Assignment Sensitivity
Estimation of Travel Time Reliability Using Stochastic User Equilibrium Assignment Sensitivity
复制标题
使用随机用户平衡分配灵敏度估计行程时间可靠性
DOI：
10.1007/0-306-48220-7_5
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
M. Bell
中科院分区：
文献类型：
--
作者：
C. Cassir;M. Bell
本文提出了一种用于评估交通网络的可靠性的方法，它可以用来支持网络的设计，是强大的日常干扰，在这个意义上说，一个可接受的网络性能水平通常将保持。虽然已经有确定旅行需求管理或新基础设施的预期效益的工具，但尚未开发出考虑到干扰（例如交通堵塞）可能带来的不利影响的工具。本文主要研究交通网络在正态变化下的运行可靠性问题。建议使用logit随机用户平衡分配模型，以获得与行程时间相关的可靠性措施。结果表明，logit SUE灵敏度表达式可以计算和应用，以估计旅行时间分布。计算结果也进行了讨论。
This paper presents a methodology for evaluating the reliability of transportation networks, which could be used to support the design of networks that are robust to everyday disturbances, in the sense that an acceptable level of network performance will normally be maintained. While tools already exist to determine the expected benefits of travel demand management or new infrastructure, tools have yet to be developed which take into account unlikely disbenefits arising from disturbances (like gridlock, to take a dramatic example). This paper focuses on the performance reliability of transportation networks in the face of normal variations. It is proposed to use a logit Stochastic User Equilibrium assignment model for obtaining reliability measures related to travel times. It is shown that logit SUE sensitivity expressions can be computed and applied in order to estimate travel time distributions. Computational results are also discussed.