Flexible Carpooling to Transit Stations

This project will investigate a flexible carpooling service intended to increase the amount of carpooling to transit stations. Increases in carpooling to transit stations could enable increases in transit ridership and improve the effectiveness of investments in parking at transit stations. Parking at transit stations often has a high capital cost and limited opportunity for expansion because of the high value of the land around many transit stations. Transit ridership is often constrained by the amount of parking at transit stations. Traditional carpooling involves pre-arrangement and commitment to being in a particular regular carpool at a particular time.  Flexible carpooling to and from transit stations will be investigated to see if it could address some of the limits of traditional carpooling to transit stations. The flexible carpooling approach operates n a similar way as the casual carpools (San Francisco, CA) and slug-lines (Washington, DC/Northern Virginia, and Houston, TX).  These operate like a taxi stand for carpoolers, with lines of people or lines of cars, and the front people getting into the front cars to go to a predetermined destination. There is no pre-commitment, and each day each participant can decide to ride, drive, or not show up, without having to inform the rest of the participants. The flexible carpooling approach to be analyzed in this project would create a more formal system (than the casual carpooling examples), with membership, pre-screening, and tracking technology, while retaining the characteristic of no pre-arrangement. To increase the utilization of parking at a given transit station, it will be necessary to first understand the usage of that parking. This project will include: surveying travel patterns of users of selected parking facilities at transit stations owned or operated by Seattle area transit agencies, including Sound Transit, King County Metro Transit, and Washington State Department of Transportation; surveying the conditions in potential flexible carpooling origin areas; choosing the optimum route for a field operating trial based on the surveys; defining a prototype flexible carpooling service; specifying a future proposed field operating trial, including budget estimates.


  • English


  • Status: Active
  • Contract Numbers:

    Project J-04, IDEA 6

  • Sponsor Organizations:

    Federal Transit Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Transit Cooperative Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC    20001
  • Project Managers:

    Berlin, Harvey

  • Start Date: 20090409
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 21747

Subject/Index Terms

Filing Info

  • Accession Number: 01462120
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project J-04, IDEA 6
  • Files: TRB, RiP, USDOT
  • Created Date: Jan 3 2013 1:58PM