Increasing Highway Capacity Unlikely to Relieve Traffic Congestion

In this policy brief, the author discusses the harmful effects of increasing highway capacity. She explains that in doing so, vehicle miles traveled (VMT) increases as a result of "induced travel". VMT increases 3-6% in the short-run and 6-10% in the long-run following highway capacity expansion. Greenhouse gas emissions increase accordingly, while congestion is not alleviated. Capacity expansion does not positively affect the economy, whereas reductions in roadway capacity tend to produce social and economic benefits without worsening traffic congestion.


  • English

Media Info

  • Media Type: Digital/other
  • Features: References;
  • Pagination: 2p

Subject/Index Terms

Filing Info

  • Accession Number: 01727157
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Created Date: Jun 7 2016 5:58PM