Research On Network Equilibrium Flow Of Urban Public Transportation Based On Bus Dwell Time

Though the analysis of the public transport network, including bus dwell time, theassignment of equlibrium passenger, the bus network and bus network design, and we pointout the inadequacies of these studies firstly: the research of bus dwell time research does notrespond to the characteristics that the bus dwell time in the bus station determined by thelarger value between the passengers to boarding time and alighting time; the assignment ofequlibrium passenger flow bus network did not consider the boarding and alighting behaviorof passengers on the assignment of equlibrium passenger flow, in fact, in many cities becauseof the huge number of boarding and alighting passengers, the bus dwell time is large enoughto impact the passengers choose of travel route; urban transit network design, most of theexisting model focuses on the re-design the entire public transportation network, or a large-scale adjustments to the public transport network, these models have a prominent contributionto the theory. However, these models have certain deficiencies in practical application. Tosolve these problems, the paper mainly do research include: based on the practical survey ofbus dwell time, new nonlinear model of the new bus dwell time are presented firstly, and thedefinition of bus dwell time in bus bay is given which include bus service hours and the traveltime of bus travelling in the bus bay; secondly, according to the study result of bus dwell time,the model of transit assignment of bus network equilibrium are proposed. For the problem oftransit assignment of bus network equilibrium, the paper gives the bus stop time-basednetwork structure firstly, and proposes public transit network equilibrium definition based onbus dwell time. Then the characterization of the transit network equilibrium conditions, andthe equivalent of the network equilibrium minimization model are proposed. To solve thepresented model, improvement optimal strategy algorithm is proposed, as well to solvecontinuous equivalent continuous of minimization model, average optimal model algorithm(MSA) and weighted average algorithm (MSWA) are proposed; Thirdly, one model of transitassignment of bus network equilibrium with capacity constraint are presented. The model istransit assignment of bus network equilibrium based on the bus dwell time, which introducethe concept of "effective frequency" and build a two-layer network model to transitassignment of bus network equilibrium with capacity constraint; Forthly, we proposed a newmodel to design of the new public transport network. The hub-and-spoke network designmodel is introduced firstly, and a new hub-and-spoke network model are proposed based onimproving the integration of the two public transportation network systems: bus publictransportation network system and metro public transportation system secondly. We use theuse the hybrid genetic algorithm to solve the model finally.