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A Spatio-temporal Accessibility Modeling Method for Public Transport System Considering Time-varying Characteristics of Network Connectivity

A technology of network connectivity and public transport system, which is applied in the field of modeling the space-time accessibility of the public transport system, can solve the problems of ignoring the change of the public transport network connectivity over time and not truly reflecting the space-time accessibility of the public transport system, etc. To achieve a more reasonable calculation result

Active Publication Date: 2020-04-14
HARBIN INST OF TECH
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Problems solved by technology

The existing spatial-temporal accessibility modeling methods determine the connectivity status of bus stops based on the spatial relationship between bus lines and stops, ignoring the characteristics of bus network connectivity that changes over time. Therefore, the calculated potential route area Can not truly reflect the space-time accessibility of the bus system

Method used

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  • A Spatio-temporal Accessibility Modeling Method for Public Transport System Considering Time-varying Characteristics of Network Connectivity
  • A Spatio-temporal Accessibility Modeling Method for Public Transport System Considering Time-varying Characteristics of Network Connectivity
  • A Spatio-temporal Accessibility Modeling Method for Public Transport System Considering Time-varying Characteristics of Network Connectivity

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Embodiment Construction

[0054] A method for modeling the spatio-temporal accessibility of public transport systems considering the time-varying characteristics of network connectivity, the method comprising the following steps:

[0055] (1) Modeling the topology structure of the bus network: taking each stop in the bus system (stops with different geographic locations but the same stop name) as a "vertex", for any pair of stops, if the stop If there is a bus line connecting two stations in a certain direction, then a "directed arc" is established between the stations (if there are multiple bus lines in the same direction between two stations, only one directed arc is established), forming A directed graph depicting the bus network topology;

[0056] (2) Define the connection state between the station pair: when the "starting station" of the station pair in a certain direction has a bus arriving for the first time every day, define the station pair to be in the connected state in this direction. When...

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Abstract

A method for modeling the spatio-temporal accessibility of the bus system that takes into account the time-varying characteristics of network connectivity relates to the technical field of modeling the spatio-temporal accessibility of the bus system. This invention fully considers the impact of the arrival and departure times of the first and last buses of each bus line in the bus system at the first and last stations of the line and stations along the way on the connectivity of the bus network, and uses changes in network arc weights at different times of the day to reflect adjacent The time-varying weighted directed graph model of the bus network constructed on this basis is more in line with the actual situation of the bus network due to changes in the connectivity status between stations; the potential design of the present invention is based on the establishment of a time-varying weighted directed graph model of the bus network. The path area algorithm uses bus network connectivity modeling as part of the spatio-temporal accessibility modeling of the bus system, making the calculation of potential paths for bus travel individuals to use the bus system to participate in social activities more realistic.

Description

technical field [0001] The invention relates to the technical field of modeling the time-space accessibility of a public transport system, in particular to the modeling technology of the time-space accessibility of a public transport system considering the time-varying characteristics of network connectivity. Background technique [0002] The spatio-temporal accessibility of the public transport system refers to the spatial range that a public transport traveler can reach by using the public transport system under the condition of a given time budget, travel destination and departure time from any station of the public transport system, reflecting the The spatial constraints of public transport travelers participating in social activities are usually measured by the area covered by the potential routes of public transport travelers (potential route area). The spatio-temporal accessibility modeling method of the public transport system refers to the calculation process of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/30
CPCG06Q10/047G06Q10/06312G06Q50/40
Inventor 程绍武王成谢兵张琎
Owner HARBIN INST OF TECH
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