Detector layout method for urban traffic signal control system

A technology of traffic signal and control system, applied in the direction of traffic signal control, traffic flow detection, etc., to reduce the number of detectors, reduce engineering costs, and improve control efficiency.

Inactive Publication Date: 2007-08-29
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problem of deploying detectors at intersections existing in the prior art, and to provide a method that can obtain traffic data with given accuracy and completeness by deploying as few detectors as possible in the road network. Layout method of detectors in the urban traffic signal control system

Method used

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  • Detector layout method for urban traffic signal control system
  • Detector layout method for urban traffic signal control system
  • Detector layout method for urban traffic signal control system

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Embodiment

[0072] Referring to Figure 6, Figure 6 shows a schematic diagram of a local road network in Changchun City, assuming that the main road section of the city has 4 motor vehicle lanes in one direction, the secondary arterial road has 2 lanes in one direction, and the branch road has 1 lane in one direction. According to the historical detection data of each intersection in the road network, the road network correlation coefficient r of each exit of the intersection is obtained 2 Statistical table, that is, Table 2.

[0073] Table 2 Correlation coefficient r of a local road network in Changchun 2 statistical table

[0074] Explanation: Since table 2 is too wide, table 2 is divided into left and right parts, and the lower table is connected to the right side of the upper table.

[0075] The layout of the detector is described below with this local road network:

[0076] (1) According to the road characteristics, grades and distribution of road traffic flow, Renmin Stree...

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Abstract

The invention discloses a detector layout method in a city traffic signal control system including the following steps: 1) identifying the type of highway, main way, secondary way, and slip way, 2) identifying the type of strategic, tactical, general and sensitive intersection, 3) determining the type, size, number of strategic, tactical, sensitive detectors of the entire city, and location and quantity of the corresponding detectors laid in various types of roads, 4) installing the strategic, tactical and sensitive detector, and linking them and other equipment with wire or cable, 5) installing the detector to detect bicycle flow on the bicycle Lane, and linking it and other equipment with wire or cable.

Description

technical field [0001] The invention relates to a method for acquiring basic data of traffic control in an urban traffic management system, and more specifically relates to a method for arranging detectors in an urban traffic signal control system. Background technique [0002] The detector is an important means to collect traffic parameters such as flow rate, speed, vehicle type and occupancy rate. The main working principle of the commonly used vehicle detector is to detect the energy change caused by the movement or presence of the car. The detectors used in the urban traffic management system are mainly divided into two types: fixed and mobile. Among them, the fixed detectors collect traffic information in the following ways: (1) using magnetic frequency detection technology, (2) using wave frequency detection technology , (3) Using video detection technology; The mobile traffic information collection methods adopted at home and abroad mainly include: (1) Electronic lab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/07
Inventor 王殿海宋现敏陈永恒曲昭伟李志慧景春光杨少辉
Owner JILIN UNIV
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