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Employee trip reduction in Southern California: First year results


  • Giuliano, Genevieve
  • Hwang, Keith
  • Wachs, Martin


Trip reduction policies are increasingly utilized in U.S. metropolitan areas to address congestion and air quality problems. These policies typically focus on the journey to work and are aimed at reducing the amount of drive-alone commuting by providing transit and ride-sharing incentives. Severe air quality problems in Southern California have prompted the air pollution control agency for the Los Angeles metropolitan area to enact Regulation XV. The regulation requires employers to develop and implement a trip reduction program to achieve specified ride-sharing goals. It is the most ambitious and far-reaching such program implemented to date, and offers a unique opportunity to determine whether such programs can significantly affect travel behavior. This paper presents results from the first year of Regulation XV's implementation.

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  • Giuliano, Genevieve & Hwang, Keith & Wachs, Martin, 1993. "Employee trip reduction in Southern California: First year results," Transportation Research Part A: Policy and Practice, Elsevier, vol. 27(2), pages 125-137, April.
  • Handle: RePEc:eee:transa:v:27:y:1993:i:2:p:125-137

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    References listed on IDEAS

    1. Himanen, Veli & Nijkamp, Peter & Padjen, Juraj, 1992. "Environmental quality and transport policy in Europe," Transportation Research Part A: Policy and Practice, Elsevier, vol. 26(2), pages 147-157, March.
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    Cited by:

    1. Jun Guan Neoh & Maxwell Chipulu & Alasdair Marshall, 2017. "What encourages people to carpool? An evaluation of factors with meta-analysis," Transportation, Springer, vol. 44(2), pages 423-447, March.
    2. Burns, Elizabeth K., 1994. "Linking Geographic Information Systems and Trip Reduction: Limitations in a Pilot Application," University of California Transportation Center, Working Papers qt2vh8b8xf, University of California Transportation Center.
    3. Burns, Elizabeth K., 1994. "Employee and Student Trip Reduction: First Year Results from Metropolitan Phoenix," University of California Transportation Center, Working Papers qt8jr077wz, University of California Transportation Center.
    4. Cervero, Robert, 1996. "Commercial Paratransit in the United States: Service Options, Markets, and Performance," University of California Transportation Center, Working Papers qt1cp1t1vh, University of California Transportation Center.
    5. Santos, Georgina & Behrendt, Hannah & Teytelboym, Alexander, 2010. "Part II: Policy instruments for sustainable road transport," Research in Transportation Economics, Elsevier, pages 46-91.

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