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A dynamic information collection method for associated road segments of intersection

A collection method and technology of road sections, applied in traffic flow detection and other directions, can solve problems such as massive calculation update maintenance and computational complexity, and achieve the effect of ensuring accuracy and regional coverage, high portability, and short construction period

Inactive Publication Date: 2008-02-13
SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantages of collecting the traffic status of the associated road section based on the road signal controller are obvious, the engineering is simple, and the utilization rate of the equipment is improved and the investment is low; the disadvantage is the massive calculation caused by a large number of manual settings and the complexity of update maintenance and calculation degree problem

Method used

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  • A dynamic information collection method for associated road segments of intersection
  • A dynamic information collection method for associated road segments of intersection
  • A dynamic information collection method for associated road segments of intersection

Examples

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Embodiment Construction

[0017] This specific embodiment is a method for collecting dynamic road conditions of associated road sections at the intersection as shown in FIG. 4. The five-way intersection shown in Figure 4 is numbered 1, and its associated road sections are numbered 1, 2, 3, 4, and 5; the traffic level is 4 (two-way 4 lanes).

[0018] This specific embodiment is based on the process shown in Figure 1: It includes the following steps: (1) Read the basic GIS data of intersection No. 1 and sections 1-5 from the traffic GIS data; the traffic control center provides basic urban traffic GIS data, including Physical state data such as intersection, the initial relationship and length of the road section;

[0019] (2) Establish the correlation between the intersection, the associated section, the direction of the section, and the phase of the intersection signal control machine control plan;

[0020] Establish a table of intersections and related road sections centered on the intersection as shown i...

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Abstract

The invention discloses a crossing-interlocked dynamic traffic status collecting method, which comprises following steps: (1) reading data of positions of crossings and roads; (2) establishing association relations between crossings, interlocked roads, road orientation and crossing signal controller control scheme phase, and establishing threshold table of roads and traffic status; (3) acquiring interlocked phase of the required road, and reading the collected data of the crossing signal controller for the phase; and (4) calculating traffic status parameters of the road orientation, and judging traffic status of the road orientation in accordance with the threshold table of roads and traffic status. The method provided in the invention realizes the control scheme and the data collecting process through configuring the data structure, and realizes fulfillment of complexity of various crossings and roads. The invention is characterized by very high portability, short implementation period, short construction period and feasibility of large-scale implementation. The invention allows traffic status threshold configuration for different roads, the controllability is high, and the invention can realize real-time collecting.

Description

(1) Technical field [0001] The invention relates to a method for collecting dynamic traffic information, in particular to a method for collecting dynamic road condition information of an associated section of an intersection by using an intersection signal controller as a basic traffic information acquisition source. (2) Background technology [0002] At present, the real-time release of road dynamics and traffic information has become one of the effective methods and consensuses to induce urban traffic and solve the problem of urban traffic congestion; for example, Beijing Public Travel Network and Jinan Traffic Information Service Network all adopt this method by publishing roads. The traffic information of unblocked, congested, congested and other road conditions has achieved the purpose of inducing urban traffic and rationally distributing urban traffic flow, and has received good and sensational effects. At the same time, the effective and accurate collection of road conditi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01
Inventor 史永杨英郑哓势张立东程广河
Owner SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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