Can Carpooling Clear the Road and Clean the Air?

  title={Can Carpooling Clear the Road and Clean the Air?},
  author={Sharon Shewmake},
  journal={Journal of Planning Literature},
  pages={363 - 374}
  • Sharon Shewmake
  • Published 1 July 2012
  • Engineering
  • Journal of Planning Literature
Proponents of High Occupancy Vehicle (HOV) lanes claim the lanes reduce vehicle-trips by encouraging more people to carpool, but the evidence is mixed. This article reviews studies on the impacts of HOV lanes with a focus on behavioral models. This research makes a case for performance measures with direct welfare, congestion, or air pollution effects and focuses on papers that explicitly model carpool formation and allow for induced demand. Papers on individual regions find that HOV lanes may… Expand

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