Train operation turnover method for urban rail lines with a single end yard

Abstract

An operation and circulation of trains on a city rail with a single end station includes the steps of firstly, acquiring city rail train operation environment and demand parameters; secondly, respectively constructing the maximum departure interval functions F<d>(x) and F(x) in the direction D and the in the direction U; thirdly, determining the number of operating trains all day long; fourthly, determining the departure timetables of bidirectional trains and the circulation schemes of station-end-free trains. The method has the advantages that the maximum departure interval functions are constructed by combining station section requirements and traveler traveling requirements and service levels, and train operation cost is optimized under the constraint of the traveler service levels and the maximum departure interval functions; train operation plan optimization problems of the maximum departure interval functions are introduced, and station section requirements are hidden; train departure time optimization models and train circulation scheme optimization models are built, the train departure timetables and train circulation schemes are obtained, the operation cost of single-end-station trains is low, and traveler travelling requirements and service levels are satisfied.

Description

technical field [0001] The invention relates to the field of public transportation, in particular to a method for train turnover on urban rail lines with a single end yard. Background technique [0002] With the rapid growth of urban population, traffic congestion is becoming more and more serious. The development of urban rail transit is a development strategy for large and medium-sized cities to solve the problem of traffic congestion. As a large-capacity urban public transportation method, the operating efficiency and service level of the urban rail system depend to a large extent on the train operation plan. [0003] The train operation plan includes the train operation timetable and the train turnover plan. Under the condition of given transportation capacity, it provides an effective transportation plan for the travel demand of specific time and space distribution. A high-quality train operation plan usually needs to balance the interests of both passengers and enterp...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved in the present invention is aimed at the deficiencies in the prior art, and provides a method for the train operation turnover on the urban rail line with a single end yard, which is decomposed into 2 sub-problems in this method, one of which is train departure time optimization The problem is to optimize the departure time of two-way trains collaboratively under the constraints of the train turnover plan at the non-depot side, so as to minimize the number of train pairs; the second is the optimization problem of the train turnover plan, that is, to determine the source of the train at the depot or station, and to determine the train parking In the depot or station, and optimize the connection relationship of trains, so as to minimize the number of trains, the number of round trips to and from the depot and the stay time of trains at the station.

Images