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Mr. Sida Luo: Hybrid transit systems design: effects of ride-sharing services

Publish Date: 2018/12/15 09:05:43    Hits:

On December13th, 2018, in Room A716 of the New Main Building, Mr.Sida Luo was invited to give a lecture entitled "Hybrid transit systems design: effects of ride-sharing services". The lecture was hosted byAssociate professor Tianliang Liu. More than 20 audiences attended, including graduate and undergraduate students from School of Economics and Management and School of Transportation Science and Engineering, Beihang university.

This lecture focused 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 Didi chuxing. 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.Mr. Sida Luo firstly considered hybrid transit systems design under spatial demand and supply heterogeneity. It would be interesting to know how the heterogeneity affects the design parameters. Secondly, he examined underlying effects of ride sharing through exploring the system physics. This was achieved by making comparisons among several ground transit systems, exploring how system cost components are affected by trip demand level, city size, etc. Ride-sharing services which were found to affect the economies of scale make the system cost scale worse with the demand level. Although incorporating ride-sharing services will increase transit agency cost, it leads to a significant reduction in the user cost.

Mr. Sida Luo is now a PhD candidate under the supervision of Professor Yu (Marco) Nie, in Transportation Center and Department of Civil and Environmental Engineering, Northwestern University.He obtaineda Bachelor of Engineering in School of Transportation, Southeast Universityin 2015.His research area includes transit design, mobility as a service and unconventional intersection design. He received Northwestern University Walter P. Murphy Fellowship in 2015, Baogang Scholarship (3 out of 16000) in 2014, Mao Yisheng Railway Education Student Scholarship (4 out of 16000) in 2013, etc. Applying research outcomes in real-world transportation systems to relieve traffic problems (e.g. congestion) has always been his main pursuit, as a traffic engineer and researcher.