Study On The Bike-sharing System Layout Based On The B+R Mode

With the fast development of social economy and the constant growth of motor vehicle’s amount, the problem of urban transportation development has been increasingly emerging. Among which, the problem of urban traffic congestion has become a common failing of urban road transportation. Under the severe circumstances, developing the public transportation has become one of the most effective approaches, which is viewed as an antidote to traffic congestion. As an important part of urban public transportation system, bike-sharing system plays a key role on the medium-and-long distance public transportation(especially for the rail transit system) as a feeder mode. Nevertheless, the computation of its size and the setting of its rental stations provide determine whether or not the bike-sharing system can efficiently play the feeder and transfer functions at a large extent. Consequently, it’s attractive and promising to study on the bike-sharing system layout based on the B+R Mode, which plays an important role on the promoting the rational use of transport resources, increasing the transit ridership, optimizing the urban transport structure, moderating traffic congestion, and improving the overall efficiency of urban transport.Firstly, this dissertation explained the meaning of B+R mode and analyzed the position of bike-sharing system function and the internal and external factors that influence the choices of bike trips; then the characteristics and mode of ridership transfer between public bike and public transport were analyzed based on the characteristic comparison of different travel modes, which provided a theoretical basis for bike-sharing system layout.Secondly, based on the statistical interpretation of data that derived from the questionnaire survey, the choices of residential trip mode and the influence of integrated factors related to the transfer aspiration of residential trip mode were analyzed starting from the personal attributes; then based on the theoretical analysis of B+R mode, the multinomial logit model was established combining the travel choice factors, and the utility function of travel choice was subsequently derived after the calibration and validation of the model; and a means to measure the scale and parking pile demand of bike-sharing system was proposed combining with travel choice model and utility function, which provided a basis for the decision-making of bike-sharing system layout.Moreover, this dissertation analyzed the influential factor and basis of bike-sharing system layout, and qualitatively analyzed the ideas and elements of bike-sharing system layout based on the rail transit station; then the approach of bike-sharing system schemes optimization using improved entropy TOPSIS was proposed and the corresponding model was established, following the basic principle of optimization, general requirements and procedures, and according to the characteristics of the layout schemes. The corresponding computer program was also compiled based on software platform of MATLAB, which further provided a basis for the layout decision-making of bike-sharing system. The methodology of bike-sharing system schemes optimization using improved entropy TOPSIS efficiently eliminates the subjectively of AHP or Delphi method for determine the weights of indicators based on the experts’ judgment, as it makes full use of the information provided by the real data itself according to the information entropy of indicators, which make the results more objective. In addition, the proposed method overcomes the weakness of complex process by other decision-making methods, as it involves fewer parameters with more easy operation, which makes the results more robust.Furthermore, choosing the bike-sharing system layout around Fengcheng 5th Road station of rail line 2 in Xi’an as the research area, its size and parking pile were calculated using the proposed model for case study, and the optimal scheme was subsequently selected among the alternatives. The results of case study verified the robustness of the proposed approach, and indicated the scientificity, practicability and feasibility of applying this model as a valuable tool for bike-sharing system layout.Finally, this dissertation ended with concluding remarks and further research based on the aforementioned research and case study.