An Analytical Model to Select the Fleet Size for MAST Systems Conference Paper uri icon


  • The mobility allowance shuttle transit (MAST) system is a hybrid transit system in which vehicles are allowed to deviate from a fixed route to serve flexible demand. A mixed integer programming (MIP) formulation for the static scheduling problem of multi-vehicle MAST (m-MAST) system is proposed in this paper. Based on the MIP formulation, we analyze the impacts of time headways between consecutive transit vehicles on the performance of a two-vehicle MAST system. An analytical framework is then developed to model the performance of both one-vehicle and two-vehicle MAST systems, which is used to identify the critical demand level at which an increase of the fleet size from one to two vehicles would be appropriate. Finally, a sensitivity analysis is conducted to find out the impact of a key modeling parameter w1 on the critical demand. 2011 IEEE.

name of conference

  • 2011 IEEE Forum on Integrated and Sustainable Transportation Systems

published proceedings

  • 2011 IEEE Forum on Integrated and Sustainable Transportation Systems

author list (cited authors)

  • Lu, W., Xie, Y., Wang, W., & Quadrifoglio, L.

citation count

  • 1

complete list of authors

  • Lu, Wei||Xie, Yuanchang||Wang, Wen||Quadrifoglio, Luca

publication date

  • January 2011