论文标题
分析伦敦自行车高速公路对交通拥堵的因果影响
Analysing the causal effect of London cycle superhighways on traffic congestion
论文作者
论文摘要
运输运营商有一系列干预选项可改善或增强其网络。这种干预措施通常是在没有结果证据的情况下进行的。骑自行车的高速公路作为一种可持续和健康的旅行模式被推广,其目的之一是减少交通拥堵。估计循环高速公路对交通拥堵的影响很复杂,这是由于对运输网络的这种干预措施的非随机分配而变得复杂。在本文中,我们分析了循环高速公路的因果关系,利用交通和道路特征以及社会经济因素的交通和道路特征的干预后信息。我们根据倾向得分和结果回归模型提出了一个建模框架。该方法还将扩展到双重鲁棒的设置。仿真结果表明,所提出方法的性能优于现有竞争对手。该方法用于分析伦敦运输网络上的真实数据集。提出的方法可以帮助有效的决策来提高网络性能。
Transport operators have a range of intervention options available to improve or enhance their networks. Such interventions are often made in the absence of sound evidence on resulting outcomes. Cycling superhighways were promoted as a sustainable and healthy travel mode, one of the aims of which was to reduce traffic congestion. Estimating the impacts that cycle superhighways have on congestion is complicated due to the non-random assignment of such intervention over the transport network. In this paper, we analyse the causal effect of cycle superhighways utilising pre-intervention and post-intervention information on traffic and road characteristics along with socio-economic factors. We propose a modeling framework based on the propensity score and outcome regression model. The method is also extended to the doubly robust set-up. Simulation results show the superiority of the performance of the proposed method over existing competitors. The method is applied to analyse a real dataset on the London transport network. The methodology proposed can assist in effective decision making to improve network performance.