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Physical traffic accessibility assessment method

A technology of accessibility and transportation mode, applied in the field of assessment of physical transportation accessibility, can solve problems such as unfavorable public decision-making, and achieve the effect of good public decision-making

Active Publication Date: 2021-09-17
SHANGHAI TONGJI URBAN PLANNING & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

detrimental to making better public decisions

Method used

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  • Physical traffic accessibility assessment method
  • Physical traffic accessibility assessment method
  • Physical traffic accessibility assessment method

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Experimental program
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Embodiment approach

[0054] According to some preferred embodiments of the present invention, the evaluation method also includes:

[0055] Repeat steps six to nine until all the cells in the evaluation area S are traversed, and then the evaluation area S is obtained based on the ratio of the number of weighted cells that can be reached by the travel circle of all the cells in the evaluation area S to the number of all weighted cells in the travel circle The overall accessibility of , that is, Step 10 in the illustration.

[0056] In which, understandably, where there is traffic, there is accessibility. Accessibility can be understood as the geographical range that can be reached under the constraint of the travel time threshold T. The larger the range, the better the accessibility. Physical transportation is limited to the areas that need to be reached within the travel circle due to the limitation of physical strength. If all these areas in the circle can be reached within the threshold time, t...

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Abstract

The invention discloses a physical traffic accessibility evaluation method, which comprises the following steps of: dividing a research area into an evaluation area S and a peripheral area W, and dividing into a plurality of cells; determining the number and the number of cells included in the evaluation area S and the peripheral area W; determining a weight coefficient of the cell; determining a physical transportation mode and threshold time T of the road duration; determining a travel distance r; selecting one small area in the evaluation area S as a circle center to generate a travel circle; counting the number of cells and the number of the cells contained in the trip circle; according to the path network information and the average speed corresponding to the physical transportation mode, calculating the number of cells which can be reached through the shortest path within the threshold time T and the number of the cells; and calculating to obtain the reachability index of the cell serving as the circle center. According to the physical traffic accessibility assessment method, researchers can be helped to comprehensively and consistently assess, compare or research the physical traffic accessibility or convenience degree of different areas.

Description

technical field [0001] The invention relates to the assessment of traffic accessibility in different areas within a region, in particular to a method for assessing physical traffic accessibility. Background technique [0002] Physical transportation refers to land travel transportation that uses human-driven methods such as walking or bicycles. Said bicycle refers to a pedal bicycle driven by manpower, excluding bicycles with power assist devices. [0003] However, there is a lack of a solution in the prior art that can help researchers comprehensively and consistently evaluate, compare or study the accessibility or convenience of physical transportation in different regions. The lack of relevant solutions makes it often lack quantitative decision-making analysis basis when planning and designing physical transportation network or urban slow-moving system. Not conducive to making better public decisions. [0004] Therefore, there is an urgent need for an assessment method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01
CPCG08G1/0125G08G1/0137
Inventor 张涵双
Owner SHANGHAI TONGJI URBAN PLANNING & DESIGN INST