arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.11121physics.soc-ph
收藏

用包围分析法研究城市道路网络拓扑结构对路网性能的影响

Using Ensemble Analysis to study the effects of Network Topology on Performance in Urban Road Networks

Steven J O'Hare, Richard D Connors, David P Watling

摘要:

到目前为止,网络结构对性能的影响的研究仅限于研究网络科学文献中的典型模型生成的合成网络的集合,这些模型不能合理地代表真实的道路网络。此外,经常使用不同的需求和供应结构参数设置范围,使得很难将一项研究与另一项研究进行比较。为了解决这些缺陷,本文提出了一个实验框架的设计数值调查,研究网络性能如何变化与城市道路网络的结构特性。在这个实验框架内的关键步骤是生成合成网络的集合的频谱,这些合成网络相对于网络结构的单个方面而变化,并且坚持可扩展性约束,以确保与真实城市道路网络的相关性。然后,本文演示了这个实验框架的应用程序的调查如何两个性能指标,平均链路容量比和价格的无政府状态,不同的出行需求的密度,和网络基础设施的规模,密度和连通性。在这样做的过程中,确定了几个关键的挑战,这种调查,相对于实验的计算负担和需要的经验数据的一些重要方面的网络结构,如能力的分布。

英文摘要:

Studies of the effect of network structure on performance have, thus far, been restricted to examining ensembles of synthetic networks generated by canonical models from the Network Science literature, which do not plausibly represent real road networks. Furthermore disparate ranges of parameter settings for demand and supply structure are often used, making it difficult to compare one study with another. To address these deficiencies, this paper proposes an experimental framework for the design of numerical investigations to study how network performance varies with respect to the structural properties of urban road networks. The key step within this experimental framework is the generation of a spectrum of ensembles of synthetic networks, which vary with respect to a single aspect of network structure and which adhere to plausibility constraints that ensure relevance to real urban road networks. This paper then demonstrates the application of this experimental framework to an investigation of how two performance indicators; the average link Volume-to-Capacity ratio and the Price of Anarchy, vary with respect to the density of travel demand, and the size, density and connectivity of network infrastructure. In so doing, several key challenges of such investigations are identified, with respect to the computational burden of the experiments and the need for empirical data on some important aspects of network structure such as the distribution of capacity.

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。

↑