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Method for generating urban bus route network based on segmented splicing

A technology for urban public transport and bus line network, which is applied to the traffic control system, traffic control system, instruments and other directions of road vehicles, which can solve the problems of increased waiting time, crowded platforms, and influence on passengers' choice behavior.

Inactive Publication Date: 2014-07-23
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When considering the capacity limit of the line, the large passenger flow will cause some passengers to be unable to get on the train, and the waiting time will increase, which will affect the passenger's choice behavior, that is, the platform congestion effect

Method used

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  • Method for generating urban bus route network based on segmented splicing
  • Method for generating urban bus route network based on segmented splicing
  • Method for generating urban bus route network based on segmented splicing

Examples

Experimental program
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Embodiment 1

[0114] A kind of generation method of the urban bus line network based on segment splicing of the present invention, comprises the following steps:

[0115] 1. Taking a certain urban bus station as a network node, on the basis of the Sioux Falls network, combined with the appropriate adjustment of urban road sections to form an urban road network (see image 3 ). Multiply the city’s road network capacity by the city’s bus user occupancy rate to convert to the bus road capacity, use the BPR function as the cost function, based on the bus demand, use the user balanced distribution method to obtain the flow of each bus station, and then use the bus The center point determination method screens out the bus center nodes from the urban bus stations to obtain the bus center node set. Specifically in this embodiment, the urban road network includes 24 nodes, 76 directed edges, and 528 O-D pairs. Based on the urban road network nodes, the directed network is transformed into an undir...

Embodiment 2

[0143] Apply the generation method of the above-mentioned city bus line network of the present invention to the bus line network of a certain specific city, such as Image 6 , there are 305 nodes, 430 two-way road sections, and 92720 bus O-D pairs, each O-D demand is distributed between 0 and 1314, and the average O-D demand is 5.0. Using the central node determination method, select 12 central nodes 9, 13, 114, 126, 141, 146, 179, 203, 216, 245, 275, 282. At the same time, 1416 line segments are generated, including 317 line segments between bus center nodes and 1099 line segments of the set of bus line segments at single bus center nodes. In the initial bus network generated in this embodiment, 60 lines (see table 9 below) have been generated, and the road section coverage rate is 72.6%, the site coverage rate is 81.6%, and the objective function value is 7.79×10 6 . The information of the bus network planning scheme obtained after optimization using the simulated annealin...

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Abstract

The invention discloses a method for generating an urban bus route network based on segmented splicing. The method comprises the following steps that first, urban bus stations are used as network nodes, and a user balancing distribution method is used for acquiring the passage point traffic of all the bus stations; a bus center point determining method is used for acquiring a bus center node set, and a bus network route section set of bus single center nodes among bus center nodes is generated; accordingly, an initial line network generation method is used for setting the departure frequency of all bus routes, and an initial bus line network planning scheme is obtained; then, a simulated annealing algorithm is used for optimization; a novel bus line network planning scheme is formed through a line network adjusting method and a frequency adjusting method every time, and a strategy balancing distribution method based on effective frequencies is used for simulation and evaluation until an optimized urban bus line network is acquired. The method for generating the urban bus route network based on segmented splicing has the advantages that the steps are simplified, the practicability is high, standardized implementation can be achieved, and the planning routes are reasonable and scientific.

Description

technical field [0001] The invention relates to a method for planning and arranging urban traffic lines, in particular to a method for planning and arranging urban public transport lines. Background technique [0002] Conventional public transportation is one of the leading modes of urban public transportation system due to its flexible setting, low investment and large coverage. Nowadays, the urban traffic is increasingly congested and the passenger travel environment is deteriorating. Reasonable planning of the bus network can improve the quality of public transport services, increase the utilization rate of public transport, and promote the healthy, stable and sustainable development of the urban transport system. [0003] How to plan and arrange the bus network has been a long-standing technical problem in this field. Experts and scholars have done a lot of research on passenger flow distribution, bus network design, bus network and frequency comprehensive optimization (...

Claims

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Application Information

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IPC IPC(8): G08G1/00G08G1/065
Inventor 史峰徐光明秦进邓连波周文梁
Owner CENT SOUTH UNIV
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