Presenter: Sida Luo（罗斯达）
Department of Civil and Environmental Engineering, Northwestern University,
Evanston, Illinois 60201, USA
Urban transit systems are pivotal to sustainable city growth, because mass transit (such as subways) is capable of carrying large number of travelers, especially compared with private automobiles. This talk focuses on a so-called hybrid transit system that marries the benefit of traditional fixed-route transit with ride-sharing services provided by transportation network companies (TNCs) such as Uber and Didichuxing. An integrated design of the two mobility services over road networks could help resolve the first- and last- mile problem, improving the quality of service. The system design is supposed to consider spatial heterogeneity since the demand often varies across urban space. The speaker hence will present two topics. First and foremost, we examine the effect of the exponential demand pattern – what effects will it have on the hybrid system design? Second, acknowledging that it would be beneficial to accommodate the demand heterogeneity with network supply heterogeneity, we examine more on the heterogeneity pattern. Surprisingly, A spatially heterogeneous system design will not be significantly beneficial when the travel demand is high.