Sunday, December 8, 2019

Transportation Network Analysis

How the road network determines traffic capacity
Nov 2019, phys.org

ETH researchers have shown that we can use the structure of urban road networks to predict their traffic capacity ... using billions of traffic measurements to reveal a set of rules that enable us to easily estimate the critical number of vehicles, and by extension, the traffic capacity of a city's road network:

  • road network density (kilometers of lanes per surface area)
  • redundancy of alternative routes
  • frequency of traffic lights
  • density of bus and tram lines

image source: Alan Stark, "Mini Stack" Interchange of Interstate 10, Loop 202, and State Route 51 at Night (2), 2012. link

Allister Loder et al. Understanding traffic capacity of urban networks, Scientific Reports (2019).
DOI: 10.1038/s41598-019-51539-5



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