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A Delay Judgment Method at an Intersection

A judgment method and intersection technology, applied in traffic flow detection and other directions, can solve problems such as low modeling efficiency, limited data information, and low traffic modeling accuracy, so as to simplify the modeling process, improve modeling efficiency, and improve calculation The effect of precision

Active Publication Date: 2017-09-01
JINAN MUNICIPAL ENG DESIGN & RES INSITITUTE GRP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Due to the cumbersome manual setting process of intersection delays and limited data information in the database, the accuracy of traffic modeling is not high and the modeling efficiency is low

Method used

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  • A Delay Judgment Method at an Intersection
  • A Delay Judgment Method at an Intersection

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] like figure 1 As shown, a method for judging delays at intersections, the workflow includes 4 parts from front to back: classification and sampling survey of intersections, statistics of turning delays at intersections by classification and turn, turning recognition of all road intersections in analysis software, setting intersections Deferred function call index.

[0033] (1) According to the classification sampling survey of intersections, the intersections are divided into 6 categories according to the grade of intersecting roads and the number of lanes:

[0034] Intersection of trunk road and trunk road, intersection of trunk road and secondary trunk road, intersection of secondary trunk road and secondary trunk road, intersection of trunk road and branch road, intersection of secondary trunk road and branch road, intersection of branch road...

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Abstract

The invention discloses a method for judging delays at intersections, which comprises the following steps: classification and sampling survey of intersections, dividing the intersections according to the level of intersecting roads and the number of lanes; classifying turns and counting turn delays at intersections, and counting intersections according to turns of entrance roads The average delay time of vehicles at the intersection, establish the intersection steering delay penalty function; identify the steering for all road intersections, calculate the steering angle; call the intersection steering delay penalty function, and assign it according to the road type and intersection identification steering; according to the intersection The intersection delay judgment is carried out by the intersection delay penalty function. The intersection delay judging method of the invention can be closely combined with traffic analysis software, thereby improving the calculation accuracy of the intersection delay.

Description

technical field [0001] The invention relates to a method for judging delay at an intersection. Background technique [0002] Intersection delay is an important constraint for travel route selection. In current traffic analysis, traffic surveys are generally carried out on important intersections in the urban road network, and the average delay time of vehicles at the intersections is counted, and entered into the analysis software to participate in relevant calculations . Due to the cumbersome manual setting process of intersection delays and limited data information in the database, the accuracy of traffic modeling is low and the modeling efficiency is low. Contents of the invention [0003] In order to solve the above problems, the present invention proposes a method for judging delays at intersections, which can be closely combined with traffic analysis software, and improves the calculation accuracy of delays at intersections. [0004] In order to achieve the above o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
Inventor 姬海吕凯霍苗苗
Owner JINAN MUNICIPAL ENG DESIGN & RES INSITITUTE GRP
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