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A two-way red-green wave coordinated control method for congested intersections

A technology of coordinated control and intersection, applied in the field of two-way red-green wave coordinated control, which can solve the problems of few researches on two-way red-green wave coordinated control methods, and achieve the effect of reducing the maximum queue length, good versatility, and reducing the number of stops.

Active Publication Date: 2019-05-14
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there is little research on the two-way red-green wave coordinated control method, so it is of great practical significance to study a two-way red-green wave coordinated control method for congested intersections

Method used

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  • A two-way red-green wave coordinated control method for congested intersections
  • A two-way red-green wave coordinated control method for congested intersections
  • A two-way red-green wave coordinated control method for congested intersections

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Embodiment

[0052] According to the specific method steps above, the present invention provides a specific implementation mode in practical application, which is as follows.

[0053]It is known that there are five signalized intersections on the main road from south to north, which are respectively recorded as intersections A, B, C, D, and E. The distances between adjacent intersections are 590m, 500m, 580m, and 380m in turn. is 15m / s. It is assumed that the upward direction is from south to north, and the downward direction is from north to south; the signal phase setting method of the north and south entrances of each intersection is not restricted, and the east and west entrances adopt the independent release method of the entrance. The relevant signal timing design requirements are shown in Table 1. ; Intersection C is a congested intersection, and traffic congestion occurs in the entrance roads on both sides.

[0054] Table 1 Signal Timing Design Requirements for Each Intersection ...

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Abstract

The invention discloses a bidirectional red and green wave coordinated control method directed at a crowded intersection. The method includes the following steps: S1. selecting a plurality of signal intersections serving as the coordinated control range; S2. within the coordinated control range, determining a reference intersection; S3. calculating the ideal intersection spacing between the reference intersection and other intersections; S4. based the ideal intersection spacing and the actual intersection spacing, calculating a center ratio deviation; and S5. optimizing and adjusting the phase difference of the intersections, such that the center ratio deviation in the green wave band is zero. According to the invention, the method is suitable to main street intersections having signal arrangement, can implement red and green wave band control on crowded intersections, such that vehicles which leave the crowded intersections can rapidly leave the crowded intersections in green wave, and the vehicles come to the crowded intersections are controlled to come to the crowded intersections in red wave, so that the crowded state of the crowded intersections can be effectively alleviated.

Description

technical field [0001] The invention relates to the field of traffic signal coordinated control, in particular to a two-way red-green wave coordinated control method for congested intersections. Background technique [0002] The arterial coordinated control is to connect multiple intersections on the arterial road in a certain way as the research object, and at the same time carry out a coordinated timing scheme design for each intersection. At present, the research is mainly focused on the coordinated control of the green wave on the arterial road, that is, as many vehicles as possible can obtain the right of way without stopping, thereby effectively reducing the average delay and parking times of straight vehicles on the arterial road, and greatly improving the traffic operation status of the arterial road. [0003] However, if there is a congested intersection on the arterial road, if the green wave coordinated control design for the arterial road is still adopted, the qu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/081
CPCG08G1/081
Inventor 卢凯吴焕李嘉智徐广辉
Owner SOUTH CHINA UNIV OF TECH
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