Connecting e-hailing to mass transit platform: Analysis of relative spatial position
mode - mass transit, planning - integration, planning - network design, operations - frequency
E-hailing service, Fixed-route service, Relative spatial position, Continuous approximation, Discrete-event simulation
This paper analyzes and compares two different relative spatial position (RSP) designs in an integrated e-hailing/fixed-route transit system: a zone-based design that operates e-hailing vehicles within a zone, and a line-based design that operates e-hailing vehicles along a fixed-route transit line and with a stable headway. To conduct a meaningful comparison, the optimal design problems for both systems are formulated using a same analytical framework based on the continuous approximation approach. A comprehensive numerical experiment is performed to compare various cost components corresponding to the optimal designs, and a discrete-event simulation model is developed to validate the analysis. The analytical and simulation results agree with each other well, with a discrepancy in the total system cost less than 5% in most test scenarios. These results also suggest that the line-based system consistently outperforms the zone-based system in terms of both agency and user costs, for all scenarios tested. Compared to the zone-based design, the line-based design features a sparser fixed-route network (resulting in larger stop spacing) but a higher dispatching frequency. It is concluded that the higher efficiency of the line-based design is likely derived from the strategy of operating e-hailing vehicles with a more regular route/headway structure and allowing ride-sharing.
Permission to publish the abstract has been given by Elsevier, copyright remains with them.
Chen, P., & Nie, Y. (2017). Connecting e-hailing to mass transit platform: Analysis of relative spatial position. Transportation Research Part C: Emerging Technologies, Vol. 77, pp. 444–461.