网络广告：大都市公共交通
Network Harness: Metropolis Public Transport
摘要：
我们分析了世界上一些主要城市的公共交通网络（PTNs）。虽然主网络拓扑由一组路由定义，每个路由服务于一系列有序的给定站，但是可以为路由和站定义多个不同的邻域关系。以这种方式定义的网络显示出独特的属性，最引人注目的是，通常有几条路线平行地延伸到一系列车站。其他具有现实世界链接的网络，如嵌入二维或三维的电缆或神经元，通常也显示出相同的特征-我们使用汽车工程术语“线束”来描述此类网络。这些路线的地理数据揭示了令人惊讶的自我回避步行（SAW）特性。我们提出并模拟了一个进化模型的PTNs的基础上有效地相互作用的SAW再现的关键功能。
英文摘要：
We analyze the public transport networks (PTNs) of a number of major cities of the world. While the primary network topology is defined by a set of routes each servicing an ordered series of given stations, a number of different neighborhood relations may be defined both for the routes and the stations. The networks defined in this way display distinguishing properties, the most striking being that often several routes proceed in parallel for a sequence of stations. Other networks with real-world links like cables or neurons embedded in two or three dimensions often show the same feature - we use the car engineering term "harness" for such networks. Geographical data for the routes reveal surprising self-avoiding walk (SAW) properties. We propose and simulate an evolutionary model of PTNs based on effectively interacting SAWs that reproduces the key features.
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。
