Continuum approximation modeling of transit network design considering local route service and short-turn strategy

Document Type

Journal Article

Publication Date


Subject Area

planning - network design, planning - travel demand management, economics - operating costs


Transit network design, Continuum approximation, Local route service, Short-turn strategy


This paper proposes a continuum approximation (CA) modeling framework to optimize the hybrid transit network designed with grids in the central district and hub-and-spoke structure in the periphery. Two CA models are formulated incorporating the local route service and the short-turn strategy respectively. The transit network configuration is optimized through minimizing the objective functions, which consider costs pertinent to passengers and operating agency. The decision variables include service boundary, spacings and headways of the regular service and the complementary services. Numerical experiments show that the performances of CA models with different complementary services are quite distinct under various demand scenarios.


Permission to publish the abstract has been given by Elsevier, copyright remains with them.


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