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Research on Operation Plan and Working Diagram of Rail Traffic Based on Periodic Running Mode

Author: WangBo
Tutor: YangHao
School: Beijing Jiaotong University
Course: Transportation Planning and Management
Keywords: Rail transport Cycle of running PESP Cycle open line program Cycle operation chart Multiple Objective Programming Network model Genetic Algorithms
CLC: U292.8
Type: PhD thesis
Year: 2008
Downloads: 894
Quote: 3
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Abstract


With the improvement of rail technology and equipment, which is demonstrated by train speed, and the increasing transportation demand, it becomes possible to operate transportation management mode with periodic running as its characteristics for the rail traffic in China.This thesis analyzes the features of train periodic running, according to the national condition, the features of rail traffic and developing direction of China; introduces the idea that the rail traffic system in China applies a transportation management mode of periodic running; combining periodic running with the specific situation of rail network structure, property of car flow and realistic demand of high speed rail traffic in China, focusing on building periodic running operation plan and periodic working diagram, by way of analyzing influencing factors, establishes the models and designs the corresponding solving algorithms and makes further discussion on the relevant management theories of periodic running mode in accordance with the China’s national condition.This thesis includes the following content:(1) This part introduces the method to demonstrate periodic working diagram with unit periodic working diagram, analyzes the merits and conditions to use periodic working mode for rail traffic. A new evaluation standard, under the condition of periodic running, of line capacity-combined line capacity, is brought forward. With the Beijing-Shanghai dedicated passenger line as the background, the line capacities of different rail operation modes are discussed. According to the national condition, it analyzes the feasibility and necessity of applying the management mode based on periodic running mode to high speed rail traffic network in China.(2) This part introduces Periodic Event Scheduling Problem (PESP) theory, builds a PESP model structure based on restraint graph, studies and summarizes the features and properties of the periodic constraint of PESP model and the feasible solution thereof and provides some proving method for some major features. The periodic tension model is then studied. It also compares PESP model with other relative models and discusses the appropriateness of PESP for building a rail working diagram and complexity of solving PESP, and then provides an improved converse solving algorithm, raising the effectiveness of model solving. (3) Study on periodic operation plan of inter-city rail traffic. Based on such factors as transportation enterprises, passenger’s interest and systematic optimality, considering the uncertainty of passenger flow, this part respectively builds the single objective chance constraint model and the multi-objective chance constraint model of different objectives, provides the methods of max module ideal point solving multi-objective programs and deterministic equivalents solving chance constraint programs and studies the genetic algorithm in accordance with these models. With Beijing-Tianjin inter-city rail traffic as the background, this paper solves the optimal periodic working plan and analyzes the calculation method and the results under different models.(4) Study on periodic operation plan of the dedicated passenger lines network. This part introduces the idea of combining coupling operation plan with sharing operation plan, reducing rail operation types and simplifying the establishment of operation plan. Considering reducing cost of transportation enterprises and passengers transferring and the uncertainty of passenger flow, the corresponding single-objective model and multi-objective model are built. It also studies the deterministic equivalents of car’s passenger flow distribution between different grades, the improved the SP algorithm and the transformation of chance constraints deterministic equivalents, from nonlinearity program model to linearity program model for simplification, and genetic algorithm for model solving. With the dedicated passenger lines network of certain size as the background and considering the reality in China, the paper makes the solutions for periodic operation plans under such different conditions as within this rail network, mid-high speed train mixed running mode, pure high speed cars’ operation and train alternate stop mode.(5) Study the theory of building a periodic working diagram and build a real periodic working diagram. This part discusses the specific periodic restraints and the periodic tensions expressions thereof, studies the turnaround period constraint expressions and the calculation thereof, passenger transferring periodic constraint expressions and the calculation thereof and the number of motor train unit to be used under the cycle usage model of motor train unit. Based on PESP theory and periodic tension model, the paper builds a periodic working diagram net model, studies the selection of network model spanning tree and value features of decisive variations and the method of simplification, designs a genetic algorithm to solve the model, and builds real rail traffic periodic working diagrams.

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CLC: > Transportation > Rail transport > Rail transport management projects > Organization of train > Planning and adjustment of the daily rail transport
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