Dynamic data-based public traffic vehicle intersection running bottleneck distinguishing method

A technology of public transportation vehicles and discrimination methods, which is applied in the directions of location information-based services, specific environment-based services, vehicle components, etc., can solve the problems of real-time and scientific, inability to time, space, and degree judgments in public transportation management and decision-making. and other issues, to achieve the effect of reducing the investment of investigators, improving the reliability of the data, and enhancing the applicability

Active Publication Date: 2018-11-23
SOUTHEAST UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

Due to the influence of dynamic traffic flow, the bottleneck has the characteristics of time and space dynamics. At present, most of the bottlenecks are studied based on the influence of static facilities at intersections. Traditional manual survey methods are often used for the collectio

Method used

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  • Dynamic data-based public traffic vehicle intersection running bottleneck distinguishing method
  • Dynamic data-based public traffic vehicle intersection running bottleneck distinguishing method
  • Dynamic data-based public traffic vehicle intersection running bottleneck distinguishing method

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Embodiment Construction

[0039] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0040] Such as figure 1 Shown is a system framework diagram of a dynamic data-based method for judging the bottleneck of bus intersection operation, which mainly includes:

[0041] Step 1. Data preprocessing, which mainly judges the abnormal data and cleans the data from the bus data acquisition system, and then matches the bus GPS data, AVL data and urban intersection information from the urban road information system. Fusion;

[0042] Step 2. Obtain the longitude and...

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Abstract

The invention provides a dynamic data-based public traffic vehicle intersection running bottleneck distinguishing method. The method comprises the steps of: S1, performing data pre-processing; S2, acquiring longitude and latitude data of an intersection range and screening out a public traffic vehicle running database in the intersection range from a public traffic vehicle GPS database; S3, estimating the actual running time at each intersection of public traffic vehicles by using a speed-time integral model and further calculating the intersection delay of each public traffic vehicle; S4, calculating the public traffic vehicle delay time average value of each intersection of a statistical interval; S5, judging the type of the intersections according to the levels of intersecting roads; S6, performing classified statistics on cumulative frequency distribution conditions of the average delay of the intersections of all types, determining a bottleneck degree distinguishing threshold anddynamically identifying the running bottleneck of the intersections of all types. The method can improve the running efficiency of public traffic vehicles at intersections and is great in universality.

Description

Technical field: [0001] The invention relates to a dynamic data-based method for judging bottlenecks in the operation of bus intersections, and belongs to the fields of smart bus technology, bus big data, and urban bus operation management. Background technique: [0002] Intersections are an important part of roads, and they are high-incidence locations for urban traffic delays. The flexibility of bus vehicles is poor. Due to the influence of social vehicles, unreasonable signal configuration, unscientific lane division, and lack of protection of bus rights of way at intersections, the delays of public vehicles are often greater than that of social vehicles, resulting in public transport. The waiting time at the entrance is too long, which affects the overall operating efficiency of public transport vehicles. Therefore, it is necessary to face the public transport system and study the intersection bottlenecks encountered by public transport vehicles during operation. Due t...

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Application Information

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IPC IPC(8): G08G1/07G08G1/09H04W4/02H04W4/029H04W4/40
CPCG08G1/07G08G1/09H04W4/027H04W4/029H04W4/40
Inventor 杨敏李婷伍艺白舒安褚昭明
Owner SOUTHEAST UNIV
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