Cooperative Optimization Technology For Train Operation Plan Scheme Of Multi-Format Regional Rail Transit

As China’s urban development gradually moves towards the development model of“urban agglomerations”,the inter-city rail transit operation model has begun to develop from a single independent operation model to a multi-standard comprehensive coordinated transport management model,which has led to the new situation of regional rail transit.Therefore,the coordinated integration of regional rail transit has become the main development direction and prospect of transportation between urban agglomerations.As the core operation plan of the rail transit,the train operation plan is the key to the coordinated operation of regional rail transit.The article first analyzes the development and research status of regional rail transit at home and abroad,and summarizes the principle and basis of the current rail transit plan at the second chapter.In Chapter 3,the article studies in detail the cooperative optimization mechanism of multi-standard regional rail transit.Firstly,the core problems of the collaborative optimization of regional rail transit operation schemes are described: the capacity matching of multistandard regional rail transit coordination modes and cross-system passenger transfer and transportation schemes.Then,using the theory of synergy,regional rail transit is divided into three subsystems: national railway,urban rail transit,and municipal railway.Using the order parameters and entropy weighting method that can reflect the characteristics of the three types of rail transit operations,the ordering of the three subsystems was calculated.It was found that the orderliness of the national railway trunk subsystem was significantly higher than that of the urban rail transit subsystem and the city area.The railway subsystem has a high degree of order,and it can be considered as the backbone of regional rail transportation integration,forming a concept of coordinated integration of regional rail transportation with "main railway line as main and urban rail city as supplement".Based on this,the article uses the Logit method to establish a passenger flow sharing rate model at an integrated rail transit hub,and establishes an evaluation of passenger flow demand from the national rail transit to urban rail transit and urban railways,and capacity matching detection under the current operating scheme model.In the fourth chapter,the article establishes a multi-objective driving scheme collaborative optimization model with the objective of minimizing passenger travel time and maximizing the economic benefits of the railway transportation sector,and designs a simulated annealing algorithm to solve the collaborative optimization model of the driving scheme.The fifth chapter uses Chengdu Station as a comprehensive rail transit hub,and analyzes the current status of the urban rail transit lines 1,7 and Chengdu-Irrigation Line’s operation plan.The passenger flow through the national railway to the Chengdu Station during the Spring Festival period was studied,and it was found that the current urban rail transit and municipal railway schemes cannot meet the transfer needs.Therefore,the collaborative optimization model of the opening scheme in Chapter 4 is used for collaborative optimization,which verifies the effectiveness of the model and algorithm.