Performance of reservation-based carpooling services under detour and waiting time restrictions

Yanfeng Ouyang, Haolin Yang, Carlos F. Daganzo

Research output: Contribution to journalArticlepeer-review


This paper examines many-to-many carpooling services with advance reservations, and constraints on waits and detours. An analytic model yields approximate formulas for the percent of requests matched, the expected vehicle-distance driven, and the passenger-distance traveled in some idealized scenarios. Simulations of these scenarios validate the formulas. In the most favorable cases carpooling reduces the vehicle-kilometers driven by all users by a few percent. The paper also shows how the formulas can be used by service providers to optimize offerings, and by city governments to design regulatory policies that will perform as intended. A simple example illustrates the ideas.

Original languageEnglish (US)
Pages (from-to)370-385
Number of pages16
JournalTransportation Research Part B: Methodological
StatePublished - Aug 2021


  • Carpooling
  • Detour
  • Guarantee
  • Passenger distance traveled
  • Reservation-based
  • Vehicle distance traveled
  • Wait time

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Transportation


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