A study on benefit estimation that considers the values of travel time and travel time reliability in road networks
A study on benefit estimation that considers the values of travel time and travel time reliability in road networks
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DOI：
10.1080/23249935.2017.1321695
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发表时间：
2018-01-01
影响因子：
3.3
通讯作者：
Uchida, K.
中科院分区：
文献类型：
--
作者：
Kato, T.;Uchida, K.
本研究提出了一种考虑行程时间可靠性的效益估算方法。所提出的方法是基于一个网络模型，制定为一个效用最大化问题的约束。由于该效用最大化问题与弹性需求下的多类用户均衡交通分配问题具有相同的均衡条件，因此交通需求预测和效益评估可以在同一框架下进行。通过假定效用函数的某种形式，路网模型可以估算出禁止性价格，因此该方法便于估算在自然灾害发生时由于起点-终点连接中断而造成的机会损失。此外，行程时间和行程时间可靠性的值估计内生在所提出的方法，因此，这些值的变化可以反映在效益估计。数值实验验证了该方法的有效性。
This study proposes a benefit estimation method that considers travel time reliability. The proposed method is based on a network model that is formulated as a utility maximization problem with constraints. Since this utility maximization problem has the same equilibrium conditions as a multi-class user equilibrium traffic assignment problem with elastic demand, both transport demand forecasting and benefit estimation can be carried out in the same framework. By assuming a certain form for the utility function, the road network model can estimate the prohibitive price, so the proposed method is convenient for estimating opportunity loss due to disruption of origin-destination connection in the event of a natural disaster. Furthermore, the values of travel time and travel time reliability are estimated endogenously in the proposed method; thus, changes in these values can be reflected in the benefit estimation. A numerical experiment demonstrates the method presented in this study.