Method for assessing network capacity applicability of high-speed rail based on passenger flow dynamic allocation

A technology of network capability and dynamic allocation, applied in traffic flow detection, special data processing applications, traffic control systems for road vehicles, etc. It can solve the problem of not considering the travel choices of passengers' needs, and cannot propose a fair and reasonable method for evaluating the applicability of high-speed rail network capabilities. And other issues

Inactive Publication Date: 2016-06-29
CENT SOUTH UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] For high-speed rail passenger flow allocation, there are also static allocations for daily passenger flow. However, these allocation methods do not consider the real travel choices of passengers’ needs, and cannot propose a fair and reasonable evaluation

Method used

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  • Method for assessing network capacity applicability of high-speed rail based on passenger flow dynamic allocation
  • Method for assessing network capacity applicability of high-speed rail based on passenger flow dynamic allocation
  • Method for assessing network capacity applicability of high-speed rail based on passenger flow dynamic allocation

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Embodiment 1

[0189] a kind of like Figure 16 The high-speed rail network capacity applicability evaluation method based on passenger flow dynamic allocation of the present invention comprises the following steps:

[0190] 1. Obtained technical parameters.

[0191] exist Figure 5 In the high-speed rail network shown in this example, three stations form a triangular layout network, and station 1 and station 3 have originating and arriving capabilities. The parameters of each interval obtained and measured through the corresponding railway ticketing system and equipment are shown in Table 1 below. The cost parameters α=1, β=1.6, θ - = 1.4, θ + = 1.5. The ticket pre-sale period is 60 days, and the probability distribution of all O-D passenger flows about the planned travel time is shown in Image 6 , the probability density distribution of O-D pair (1,3) passenger flow with respect to ticket purchase time is shown in Figure 7 , the probability density distribution of O-D pair (2,3) pa...

Embodiment 2

[0198] a kind of like Figure 16 The high-speed rail network capacity applicability evaluation method based on passenger flow dynamic allocation of the present invention comprises the following steps:

[0199] 1. Adopt China's high-speed rail network, such as Figure 13 As shown, the high-speed rail network consists of "four vertical and four horizontal" passenger dedicated lines, intercity passenger transport network, and speed-up existing lines, with a total of 444 high-speed rail stations and 966 sections. Relevant data are obtained through the railway ticketing system, and the annual average passenger flow in 2014 is used as the O-D demand. The total demand is 1,874,398 people. The distribution of part of O-D along with the planned travel time is as follows: Figure 14 shown.

[0200] 2. Set the planned travel time interval to 5 minutes, and set the ticket purchase time interval to 10 -4 d. According to the discretization method mentioned above, the travel time, interv...

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Abstract

The invention relates to a method for assessing network capacity applicability of a high-speed rail based on passenger flow dynamic allocation. The method comprises the following steps of: firstly, acquiring time varying requirement, section transportation capability and section service time scope of the high-speed rail; discretizing the travel time, section transportation capability, check purchasing time, section service time scope and network; performing passenger flow dynamic allocation by adopting an epsilon-saturated passenger flow loading method; assessing the network capacity applicability of the high-speed rail on the basis of a passenger flow allocation result; if O-D pairs all have no un-loadable requirement, indicating strong network capacity applicability of the high-speed rail; if O-D pairs have un-loadable requirement, indicating weak network capacity applicability of the high-speed rail; and for the O-D pairs having un-loadable requirement, increasing the network carrying capacity of the high-speed rail in the corresponding section by increasing the number of the train pairs and increasing the running frequency. The assessing method provided by the invention has the advantages of simple steps, strong practicability, standard implementation, reasonable and scientific assessing result and easy realization through software procedures.

Description

technical field [0001] The invention relates to the field of high-speed railways, in particular to a method for evaluating the applicability of high-speed railway network capabilities based on the dynamic distribution of passenger flow. Background technique [0002] In the 1950s, some developed countries made major technological breakthroughs in the research and development and engineering application of high-speed railways, and they began to be put into commercial operation in the 1960s. High-speed rail provides high-quality services and begins to compete with other modes of transportation such as road and air. The development of high-speed rail is considered to be one of the strategic means to promote social and economic development. In the past decade or so, high-speed rail has entered a golden period of development. Especially in China, a high-speed rail network of "four vertical and four horizontal" has been built. [0003] In order to evaluate the applicability of th...

Claims

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Application Information

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IPC IPC(8): G06F19/00G08G1/01
CPCG08G1/0104G08G1/0125G16Z99/00
Inventor 史峰徐光明赵烁邓连波秦进周文梁
Owner CENT SOUTH UNIV
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