Research On Traffic Mode Selection Model Based On Dalian-Shenyang Trip Chain

Channel transportation plays an important role in integrated transportation system.For the users in the channel,because of the existence of activities for life and livelihood,so to complete this activity derived from the trip,travel depends on the activities and the formation of the travel chain is due to the generation of activity links.Therefore,in order to achieve the goal of forecasting passenger share rate more accurately and reasonably,we choose to introduce the concept and viewpoint of activity chain into the study of passenger transport share rate.Through consulting and summing up the related theories based on activity and travel,the theory of activity and travel chain is seldom introduced to this problem in the study of passenger transport share rate.Based on the characteristics of trip chain,this paper will try to study the passenger transport sharing rate between Dalian and Shenyang,and construct a model of transportation mode selection based on trip chain.In order to alleviate some problems in urban traffic,this paper summarizes the related theoretical concepts and analyzes the best model for the choice of transportation modes between the two places in view of the related theoretical knowledge of trip chain.Previously,the traditional disaggregate multiterm Logit model has been widely used in this kind of problems,but the model is based on the independence of utility random terms.Therefore,it is impossible to reflect the influence and relationship between various modes of transportation in the actual transportation problems,and fail to consider the internal competition among the various modes of transportation.Finally,based on the theory of trip chain,this paper will establish a multi-user and multi-criterion traffic mode selection model based on "Dalian-Shenyang" travel chain,which can not only analyze the time and cost factors on travelers to choose the mode of travel.And from the point of view of trip chain,the related factors in the travel chain can be used to analyze the choice of travel mode between the two places.Dalian-Shenyang travel chain is selected as an example to verify the constructed nested logit model.The calculation results show that the time value and the user's own characteristics have a significant impact on the choice probability of transportation mode.The second order travel in the travel chain has no significant influence on travel,but its research significance is great,so it should not be ignored.The model combines the theory of trip chain with NL model,which makes the study of trip chain between two places more practical.