Elise Miller-Hooks

Analysis and Design of Vehicle Sharing Programs

Project 23Vehicle sharing programs (VSP’s) have been gaining ground around the world for providing an environment-friendly, socially responsible and economical mode of transport. These programs involve a fleet of vehicles positioned strategically at stations across the transportation network. Users are free to lease vehicles to complete a trip and drop the vehicle at a station close to their destination.

The shared vehicle fleet can be comprised of cars, electric vehicles or bicycles. Such systems offer innovate solutions to the larger mobility problem and can have positive impacts on the transportation system as a whole by affecting modal choice.

Strategies to better manage fleets under demand uncertainty were developed in this research effort. These strategies involve anticipative fleet redistribution that operators initiate to correct short-term demand asymmetry (since flow from one station to another is seldom equal to flow in the opposite direction). When these strategies were tested on the Singapore car sharing program, the system operated at higher reliability levels and serviced more demand than would be possible without capital improvements to the system.

Award Period:
Aug. 2008 - Aug. 2009
Source of Funding:
Mid-Atlantic University Transportation Center, United States Department of Transportation
PI on subaward and main contract
Total Award Amount:

Project 23


Elise Miller-Hooks, Ph.D.
Bill & Eleanor Hazel Chair in Infrastructure Engineering

Phone: 703.993.1685
Email: miller@gmu.edu

Office: 4614 Nguyen Engineering Building

Sid and Reva Dewberry Department of Civil, Environmental and Infrastructure Engineering
George Mason University
4400 University Drive, MS 6C1
Fairfax, VA 22030


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