Nowadays,the infrastructure and management of urban roads still cannot keep up with the increase in the number of motor vehicles,and many problems such as traffic congestion and environmental pollution are still prominent.The concept of mobility as a service was first proposed in 2014,and one of its basic meanings is to provide users with intra-city or inter-city transportation as a consumer service,and to reduce the proportion of private car travel by popularizing travel services.In view of the problem that different modes of transportation are independent from each other and lack of complete and unified travel planning in the current transportation system,this paper will mainly focus on the car sharing,which is a new travel mode in recent years,and carry out the research on the travel scheme planning of the combination of multiple travel modes under the guidance of the concept of "travel as service".Firstly,based on the development status of car sharing,this paper summarizes its travel characteristics and travel demand,and clarifies the rationality of the combination of the two modes of transportation and the objective of travel scheme optimization;Secondly,based on the basic data crawled from Amap,a traffic topology network composed of road network and public transport network is established.On the basis of the network,a combined travel planning model of shared car and public transport is constructed.Compared with other algorithms,ant colony algorithm is selected to solve the model;Finally,taking some areas of a city as an example,the travel planning model is applied in combination with the JS API service of Amap,and the travel scheme output by the model is compared with that output by a certain platform.The results show that the travel scheme output by the model performs well in the two core indicators of travel time and travel cost,it shows that the model is practical and feasible.Through the research on the travel characteristics and travel demand of shared car,the paper guides the construction of the combined travel planning model of shared car and public transport,and realizes and verifies the model through an example.The research of this paper provides a systematic,scientific and reasonable multi-mode travel planning ideas and methods for the practical application of mobility as a service,and provides a reference for the research of other different modes of transportation combination travel planning under the background of mobility as a service application,which has a certain practical significance. |