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arXiv 1909.00941math.OCcs.SYeess.SY
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基于数据的交通网络OD需求和费用函数联合估计

Joint Estimation of OD Demands and Cost Functions in Transportation Networks from Data

Salomón Wollenstein-Betech, Chuangchuang Sun, Jing Zhang, Ioannis Ch. Paschalidis

摘要:

现有的工作已经解决的问题,估计出发地-目的地(OD)的需求和恢复旅行延迟功能下的Wardropian假设的交通网络。最终的目标是得到一个准确的预测模型的网络,使优化和控制。然而,这两个问题通常被分开处理,估计是基于参数模型。在本文中,我们提出了一种方法,联合恢复非参数行程延迟费用函数和估计OD需求使用交通流数据。将该问题转化为一个双层最优化问题,并提出了一种迭代一阶优化算法来求解,最后给出了Braess网络的数值算例,验证了该方法的有效性。

英文摘要:

Existing work has tackled the problem of estimating Origin-Destination (OD) demands and recovering travel latency functions in transportation networks under the Wardropian assumption. The ultimate objective is to derive an accurate predictive model of the network to enable optimization and control. However, these two problems are typically treated separately and estimation is based on parametric models. In this paper, we propose a method to jointly recover nonparametric travel latency cost functions and estimate OD demands using traffic flow data. We formulate the problem as a bilevel optimization problem and develop an iterative first-order optimization algorithm to solve it. A numerical example using the Braess Network is presented to demonstrate the effectiveness of our method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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