| Urban public transit,a social service which can meet the needs of our resident trip,plays a vital role in transportation industries.And it is an important program that benefits a large number of people.But at the same time,it also has some disadvantages.The utilization rate of the high-cost public transport facilities in the public transportation system is not stable because of the different time periods.With the continuous expansion of urban population and scale,the travel time of public transport is getting longer and longer,the operating efficiency of public transport is affected.The Internet can effectively and timely,provide and transmit a variety of information,so as to make the most efficient supply and demand docking,reduce costs,improve efficiency.As a prospective study,this paper is based on the full sharing of passenger information by Internet plus.In this paper,a new type of dynamic public transportation mode is proposed,which is based on the original bus lines and stations,and based on the real-time demand of passengers.The main work of this paper is as follows:1.Analyze the characteristics of Internet plus public transportation,compare the traditional bus and Internet plus public transportation.On the basis of making full use of Internet technology and methods,this paper puts forward the strategy of dynamic transit operation.2.The bus line uses the non fixed bus-line operation mode,combines the bus skip-stop operation and the change of the line,which is based on the choice of the optimal route.The optimal route of bus is selected by using DJ algorithm.Establish the minimum cost model of bus transit time.Use genetic algorithm to solve the model.The model is analyzed from two aspects: the utilization rate of the bus station and the proportion of the passengers inside and outside the vehicle.3.As for the bus site,put forward the concept of bus site-group.This paper discusses the advantages and disadvantages of the bus station group,and studies the setting of the site group.The sites which are around the original site within 300 m have possibility to constitute a site-group.Use AP clustering model to determine whether the bus sites can constitute a site-group.Establish the bus site-groupselection model,which can help select the site when the bus arrives at the site-group.4.Use the data of bus site and bus network in Shenzhen city.Analyze the effect of bus dynamic operation mode.The results of this study provide new ideas and methods for the development of public transportation based on Internet plus,and play a positive role to enhance the competitiveness of the bus and to improve the traffic efficiency of conventional bus lines. |