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Article Dans Une Revue Transportation Research Record Année : 2019

Optimal Design of Bus Routes for Different Vehicle Types Considering Various Driving Regimes and Environmental Factors

Yue Su
Guo Lu
  • Fonction : Auteur
Wenbo Fan
  • Fonction : Auteur

Résumé

As a major part of public transportation system, bus transit has been regarded as an effective mode to alleviate the traffic congestion and solve vehicle emission problem. The performance of bus transit system depends largely on its design of proper stop locations. In this reasearch, we proposed a multi-period continuum model (peak hour and off-peak hour) to optimize the design of a bus route for four different vehicle types (i.e., supercharge bus, Compressed Natural Gas (CNG) bus, Lithium-ion battery bus, and diesel bus) considering driving regimes and the pollutant cost. Inter-stop driving regimes, including acceleration, cruising, coasting, and deceleration, are explicitly introduced into the optimization to determine whether and how the coasting regime should be undertaken in the tradeoff between vehicle's commercial speed and the operating cost. The comparison for the cost effectiveness of each alternative has been investigated in a life span with respect to different vehicle types. The method has been implemented in the real-word bus route 7 in Yaan City (China). The numerical experiments suggest that through optimization, the total system cost has been saved by more than 50%. The results of continuum model are validated by the comparison with the discretized results, and the outcomes are closely located in neighborhood (with error less than 3%). The life-cycle cost of four vehicle types is finally analyzed, and the result indicates that due to the high purchase prices, it's difficult for clean-energy buses to outperform conventional buses in a life cycle (normally 8 years), unless with subsidies provided.
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Dates et versions

hal-02385828 , version 1 (29-11-2019)

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Yue Su, Xiaobo Liu, Guo Lu, Wenbo Fan. Optimal Design of Bus Routes for Different Vehicle Types Considering Various Driving Regimes and Environmental Factors. Transportation Research Record, 2019, 2673 (6), pp.299-316. ⟨10.1177/0361198119841566⟩. ⟨hal-02385828⟩
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