Multiplex spatial networks and urban mobility: slower is better!
© 2015 EPFL
In a recent study, Emanuele Strano together with Sarai Shay and Marc Barthelemy, explored the effect of underground systems on roads network topological structure
In a typical multiplex manner, they treated roads like a network and underground like shortest path between locations, then they explored how the reciprocal speed effects proximity between places and flow between locations. Surprisingly they discovered that faster do not mean always more efficient and that beyond a given optimal point there is considerable risk to segregate and disconnect parts of the cities. The study highlights also the dualistic centripetal and centrifugal effect on multi layers transportation networks. The paper has been published in the Journal of the Royal Society "Interface" and reviewed by the New Scientist, the BBC and Wired.