"Transportation is a highly structured process, it takes place on networks, it is time sensitive, and it has issues with queuing and congestion. Transportation facilities themselves are major land uses. Transportation requires space to occur, and radically alters spaces both at nodes—the terminals, stations, interchanges, which often become important activity centers—and along links (lines, roads, tracks, etc.). History is rife with cities building infrastructure that was not suited to their land use, both rail transit systems without adequate local demand and highways through high-density urban cores. The transportation plexus needs to be coupled with the activity place."
Dr. David Levinson, RP Braun/CTS Chair in Transportation Engineering and Director of Nexus
(from Critical Planning, A Journal of the UCLA Department of Urban Planning)
