Space-time chain model based bus route evaluation method

A technology of bus routes and evaluation methods, applied in instruments, data processing applications, calculations, etc., can solve problems such as unbalanced passenger flow, non-linear coefficients, lack of expression and feelings, etc.

Active Publication Date: 2015-02-18
GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
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Problems solved by technology

At present, there are three main problems in the evaluation methods of public transport network at home and abroad: (1) The existing evaluation methods mainly evaluate the technical indicators of the network itself, such as network density, line length, repetition coefficient, non-linear coefficient , accessibility, station density, unbalanced passenger flow coefficient, etc., and the most critical evaluation standard that can best reflect whether the bus network is scientific and reasonable in practical applications is the travel experience; (2) the existing evaluation methods are mainly based on the city as a whole Or a certain area is used as the evaluation object, and there is no evaluation for a specific bus line. In fact, when the traffic management department sets up a bus line, it requires a specific evaluation for a certain bus line; (3) Existing evaluation Most of the results obtained by the method are a series of tables and technical index numbers, lacking intuitive expression and feeling

Method used

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  • Space-time chain model based bus route evaluation method
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  • Space-time chain model based bus route evaluation method

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Embodiment

[0058] Passengers' bus travel behavior is defined as a three-dimensional trajectory in (x, y, t) space-time (x, y are two-dimensional space coordinates, t is time-dimensional coordinates). The space-time chain model is mainly composed of two parts: the stagnation point and the trajectory segment. The representation form of the stagnation point is a bus stop, and the representation form of a track segment is a bus running track between two adjacent bus stops (called a station section). Please refer to figure 1 As shown, it specifically includes the following steps:

[0059] Step 1: Carry out travel data survey by time-sharing and segment method.

[0060] The bus line evaluation method based on the space-time chain model needs to first investigate each station section of the bus line according to different periods such as morning peak, evening peak and non-travel peak, so as to obtain the most comprehensive data. It is required to take at least one week (7 days) as a survey c...

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Abstract

The invention discloses a space-time chain model based bus route evaluation method. The method includes the steps: firstly, creating a passenger travel station point set; secondly, acquiring a movement track Sij(t) of a bus between two adjacent bus stations Zi and Zj; thirdly, forming a complete passenger travel space-time path L(t); fourthly, modeling the passenger travel time path L(t) by utilizing the time-space geography theory; fifthly, acquiring a mathematical model S' for evaluation of the complete passenger travel space-time path. The bus route and bus travel behaviors are evaluated and expressed visually, and the method has an important value to scientific evaluation and reasonable setting of the bus route.

Description

technical field [0001] The invention relates to the technical field of public transportation, in particular to a method for evaluating public transportation routes based on a space-time chain model. Background technique [0002] The scientific planning of the urban public transport network is the prerequisite for attracting citizens to choose public transport for travel. A scientific and convenient public transport network can improve the operating efficiency of the urban public transport system and increase the proportion of public transport travel. Accurate evaluation of the bus network is the basis of scientific planning and efficient scheduling. At present, the evaluation of technical indicators of the bus network is relatively mature, such as network density, line length, repetition coefficient, non-linear coefficient, accessibility, station density There are already mature calculation methods for the calculation of technical indicators such as passenger flow imbalance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/30
CPCG06Q10/06393G06Q50/30
Inventor 李勇唐光良杨骥
Owner GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
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