Study On Path Optimazition Of Online Car-hailing Transfering To Rail Transit Under MaaS Background

With the improvement of people's living standards,travelers' demands for transport services are increasing,convenient private cars become the first choice for most travelers,and also contributes to the urban traffic congestion.Since Mobility as a Service(referred as MaaS)system gradually becomes a research hotpot as well as considered to be the future development direction,for providing a new idea to relief the congestion.In this context,online car-hailing transfer to urban rail transit(referred as rail transit)will become a new combination of trip modes.How to obtain the needs of travelers and optimize the travel path based on the demands are the key points to related problems of online car-hailing transfer to rail transit.Firstly,this thesis analyzes the travel characteristics and influencing factors of the online car-hailing transfer to rail transit mode,and constructs the topology network of road and rail transit;Secondly from the view of time,cost and comfortable degree analyzes the generalized travel cost,by constructing Logit model to distribute Automatic Fare Collection System(AFC)credit card data and then obtaining rail transit passenger section flow data,through Gauder open data to obtain road running speed,providing data support for modeling;Thirdly,taking online car-hailing transfer to rail transit characteristics into consideration,dividing traditional generalized travel costs into perceived and actual travel costs,reduce the difficulty of travel decisions-making,constructing the path optimization model of online car-hailing transfer to rail transit;Fourthly,improving ant colony algorithm and add maximum as well as minimum pheromone concentration interval constraint and do not set constraint condition strategy in early iteration to fit the model better;Finally,testing models through roads combined with urban rail networks of W Z district.By studying the travel demand acquisition process,travel characteristics,travel cost and the method of acquiring online car-hailing transfer to rail transit basic data under the background of MaaS,and constructing model to optimize path,this article that has certain practical significance provides MaaS provider some scientifically,reasonable and systematically thoughts of path optimization as well as references to researches such as transfer to others,path optimization,data acquisition and otherwise.