Adaptive transit design: Optimizing fixed and demand responsive multi-modal transportation via continuous approximation

Giovanni Calabro; Andrea Araldo; Simon OhRavi SeshadriGiuseppe InturriMoshe Ben-Akiva

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Adaptive transit design: Optimizing fixed and demand responsive multi-modal transportation via continuous approximation

机译：Adaptive transit design: Optimizing fixed and demand responsive multi-modal transportation via continuous approximation

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In most cities, transit consists solely of fixed-route transportation, whence the inherent limited Quality of Service for travellers in suburban areas and during off-peak periods. On the other hand, completely replacing fixed-route (FR) with demand-responsive (DR) transit would imply a huge operational cost. It is still unclear how to integrate DR transportation into current transit systems to take full advantage of it. We propose a Continuous Approximation model of a transit system that gets the best from fixed-route and DR transportation. Our model allows deciding whether to deploy a FR or a DR feeder, in each sub-region of an urban conurbation and each time of day, and to redesign the line frequencies and the stop spacing of the main trunk service. Since such a transit design can adapt to the spatial and temporal variation of the demand, we call it Adaptive Transit. Numerical results show that, with respect to conventional transit, Adaptive Transit significantly improves user-related cost, by drastically reducing access time to the main trunk service. Such benefits are particularly remarkable in the suburbs. Moreover, the generalized cost, including agency and user cost, is also reduced. These findings are also confirmed in scenarios with automated vehicles. Our model can assist in planning future-generation transit systems, able to improve urban mobility by appropriately combining fixed and DR transportation.

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《Transportation research, Part A. Policy and practice》 |2023年第5期|103643.1-103643.32|共32页
作者
Giovanni Calabro; Andrea Araldo; Simon OhRavi SeshadriGiuseppe InturriMoshe Ben-Akiva;
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University of Catania, Via Santa Sofia, 64, 95123 Catania, Italy;

Samovar, Telecom SudParis, institut Polytechinque de Paris, 19 place Marguerite Percy, 91120 Palaiseau, France;

Department of Autonomous Mobility, Korea University, Sejong 30019, KoreaDepartment of Technology, Management and Economics, Technical University of Denmark, 2800 Kongens Lyngby, DenmarkDepartment of Electrical Electronic and Computer Engineering, University of Catania, Via Santa Sofia, 64, 95123 Catania, ItalyDepartment of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States;

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正文语种英语
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Transit network design; Continuous approximation; Demand-responsive transportation; Microsimulation;

Adaptive transit design: Optimizing fixed and demand responsive multi-modal transportation via continuous approximation

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