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Effectiveness of a web-based intervention to encourage carpooling to work: A case study of Wellington, New Zealand

Listed author(s):
  • Abrahamse, Wokje
  • Keall, Michael
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    Despite the many advantages of private car travel, excessive use of the private car has many negative consequences, such as congestion and air pollution. There is widespread recognition of the need to limit the demand for private car travel through travel demand management measures, such as information and incentives. This study examines the effectiveness of Let's Carpool, an initiative aimed at increasing vehicle occupancy in the Wellington region of New Zealand, and it examines factors related to solo driving. Let's Carpool uses ride-matching software to facilitate finding a carpool match for the commute to and from work. This evaluation study among nearly 1300 registrants of Let's Carpool shows that the percentage of commuters enrolled in the scheme who carpooled as their main mode of transport for getting to work increased significantly (from 12% to 27%), while the percentage of commuters indicating they drove alone decreased significantly. The frequency of driving alone also decreased significantly. Beliefs about cost, comfort, and convenience were related to solo driving. Based on the findings, recommendations are made to further enhance the effect of carpool initiatives.

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    Article provided by Elsevier in its journal Transport Policy.

    Volume (Year): 21 (2012)
    Issue (Month): C ()
    Pages: 45-51

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    Handle: RePEc:eee:trapol:v:21:y:2012:i:c:p:45-51
    DOI: 10.1016/j.tranpol.2012.01.005
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    1. Shoup, Donald C., 1997. "Evaluating the effects of cashing out employer-paid parking: Eight case studies," Transport Policy, Elsevier, vol. 4(4), pages 201-216, October.
    2. Bamberg, Sebastian & Fujii, Satoshi & Friman, Margareta & Gärling, Tommy, 2011. "Behaviour theory and soft transport policy measures," Transport Policy, Elsevier, vol. 18(1), pages 228-235, January.
    3. Shoup, Donald C., 1997. "Evaluating the effects of cashing out employer-paid parking: Eight case studies," University of California Transportation Center, Working Papers qt2qw4w2s1, University of California Transportation Center.
    4. Cairns, S. & Newson, C. & Davis, A., 2010. "Understanding successful workplace travel initiatives in the UK," Transportation Research Part A: Policy and Practice, Elsevier, vol. 44(7), pages 473-494, August.
    5. Koppelman, Frank S. & Bhat, Chandra R. & Schofer, Joseph L., 1993. "Market research evaluation of actions to reduce suburban traffic congestion: Commuter travel behavior and response to demand reduction actions," Transportation Research Part A: Policy and Practice, Elsevier, vol. 27(5), pages 383-393, September.
    6. Evans, James R. & Jackson, William K. & Westerbeck, Gregory J. & Thomas, Michael P., 1985. "Planning and analysis of a ridesharing evaluation study," Socio-Economic Planning Sciences, Elsevier, vol. 19(1), pages 41-49.
    7. Shoup, Donald C., 1997. "Evaluating the Effects of Parking Cash Out: Eight Case Studies," University of California Transportation Center, Working Papers qt5nc6w2dj, University of California Transportation Center.
    8. Dahlgren, Joy, 1998. "High occupancy vehicle lanes: Not always more effective than general purpose lanes," Transportation Research Part A: Policy and Practice, Elsevier, vol. 32(2), pages 99-114, February.
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