Fixed-route Demand Responsive Transit For Urban-rural Transportation Corridors And Its Benefit Evaluation

With the further extension of urban space and the advancement of the overall development of urban-rural areas,the travel demand for word and life travel in urban-rural areas is instantly increasing,and it is imperative to develop urban-rural integrated public transportation.Research shows that the flexible-route bus is more cost-effective than the pure DRT(Demand Responsive Transit)and more flexible than the traditional fixed-route bus.However,the focus of flexibleroute public transportation is how to meet the passenger demand in a certain area deviating from the reference route with a more economical way using network design,and how to reduce the operating cost on the reference route has not been considered yet.Regarding to this problem,combing with the characteristics of passenger flow demand in urban-rural transportation corridors,this paper proposes a fixed-route demand-responsive bus oriented to urban-rural transportation corridors and conducts simulation evaluation of benefits.First,by collecting the spatial distribution data and vehicle trajectory data of the zero passenger flow demand stations of 29 bus lines through the on-board survey method,this paper analyze the probability of zero passenger flow demand stations,unnecessary stoppings and spontaneous overpasses in urban-rural bus lines;Secondly,after constructing a running time and energy loss evaluation model,this work quantitatively evaluate the impact of unnecessary stoppings and predicted passenger on/off demand information on the running time and energy consumption,and seek to powerful data support for the fixed-route DRT for urban-rural transportation corridors;Thirdly,a fixed-route DRT system framework is designed based on real-time passenger flow demand feedback,and then the thesis introduce the system composition,work flow and various module functions;Finally,the VISSIM simulation software is re-developed using MATLAB to build a fixed-route DRT benefit simulation evaluation platform for urban-rural traffic corridors,and it verifies the effectiveness of the platform from three indicators in the vehicle speed,running time and energy consumption.The results show that there are widespread zero-traffic demand stations,unnecessary stoppings and spontaneous overpasses in urban-rural bus lines;Unnecessary stoppings obviously lead to waste of running time and energy,while predicting passenger boarding/alighting demand information can effectively save running time and energy.Therefore,it is necessary to implement fixed-route DRT in urban-rural transportation corridors with the help of V2 X communication technology;The fixed-route DRT based on real-time demand feed back of passenger flow can reduce the running time and energy loss caused by unnecessary stoppings;The fixed-route DRT benefit simulation evaluation platform for urban-rural transportation corridors is universal,can reduce the cost of experiments,and meet the continuous collection of multiple samples.It also can call the expected speed distribution of the bus according to the demand to apply to the simulation of the driverless bus operation.The research in this thesis can provide theoretical basis and data support for the development of fixed-route DRT system and the adoption of related operating modes.