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An Automatic Organizational Method for Coordinated Control Trunks

A technology for automatic organization and coordinated control, applied in traffic control systems, road vehicle traffic control systems, traffic flow detection, etc. problems, to achieve the effect of improving the efficiency of traffic management

Active Publication Date: 2015-08-12
NANJING LOPU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these improvement schemes are often based on intersections with a specific structure and cannot be extended to regular intersections; moreover, their control methods are more complicated, often using more traffic models, and contain a large number of calculation processes, which is not conducive to improving the operation of the scheme. efficiency

Method used

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  • An Automatic Organizational Method for Coordinated Control Trunks
  • An Automatic Organizational Method for Coordinated Control Trunks
  • An Automatic Organizational Method for Coordinated Control Trunks

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Embodiment

[0038] The automatic organization method of the coordinated control arterial of this embodiment is applied to the target area that is made up of several intersections; The automatic organization method comprises the following steps:

[0039] The first step is to detect all the road sections between adjacent intersections in the target area, put the road sections that meet the predetermined conditions into the set L, and put the intersections at both ends of each road section in the set L into the set M.

[0040] Predetermined conditions are: the number of phase lanes ≥ α, the safe speed of the road section ≥ β km / h, the distance between the intersections at both ends of the road section ≤ 600 meters, and the periodic difference between the intersections at both ends of the road section ΔC ≤ δC min , δ∈(0,0.3), the traffic flow of the road section is less than or equal to 80% of the saturated flow of the road section; among them, α and β are positive integers, and the default va...

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Abstract

The invention relates to an automatic organizing method for coordinate control trunk lines. The method comprises the following steps: including road sections meeting a preset condition into a set L, and including intersections into a set M; grouping coherent road sections in the set L according to the difference among safety speeds of the road sections to obtain a subset Ln, and including corresponding intersections into a subset Mn; detecting the traffic flow ratio gamma of each intersection in sequence specific to the subset Lj, and marking the intersections as ai or bk; determining trunk lines of the subset Lj according to the quantity N (ai) of the intersections marked as ai in the subset Mj; marking a traffic flow direction with higher traffic flow as a green wave direction of each sub-trunk-line according to the uplink and downlink traffic flows of the sub-trunk-line in sequence specific to each sub-trunk-line; and performing trunk line control by using the determined trunk lines and green wave direction. According to the automatic organizing method, the trunk lines can be organized automatically according to the variation of practical traffic conditions, so that a conventional trunk line control system has the ability to make immediate response, and increase in the traffic management efficiency is facilitated.

Description

technical field [0001] The invention relates to an automatic organization method for coordinated control trunk lines, which can automatically organize road trunk lines suitable for green wave control. Background technique [0002] The traditional arterial division is carried out manually, usually according to the experience of the traffic police to divide the main road as the green wave main road, for example, the east-west or north-south main road with relatively large traffic flow is used as the green wave main road to meet the traffic flow of the main road. However, this traditional method is difficult to make adaptive changes according to the current traffic conditions, and cannot effectively improve road operation efficiency. [0003] At present, researchers have proposed many improved technical solutions for trunk line control. For example, the Chinese invention patent application with application number 200810063709.0 and publication number CN101325008A (name: a dynam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/00G08G1/01G08G1/065
Inventor 马荣叶林海鹏张培蒋微波翁浙巍
Owner NANJING LOPU CO LTD
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