Green wave coordination control method for artery facing to running speed section

Abstract

The invention discloses a green wave coordination control method for an artery facing to a running speed section. The green wave coordination control method comprises the following steps of: collecting speed samples of vehicles running on the artery; setting a normal variable section of the running speed; setting a mean design vehicle speed in a green wave coordination control manner; generating green wave coordination control alternative offers of the artery; evaluating the alternative offers according to distribution of the running speed samples; selecting an optimal green wave coordination control alternative offer of the artery; and drawing a green wave band time-distance graph and a running speed-green wave band width curve. The green wave coordination control method for the artery provided by the invention can meet the green wave coordination control requirements of a motorcade within a certain running speed section to the greatest extent, so that the vehicles of the motorcade in the running speed section can be located within green wave band width of the artery as far as possible; and the adaptability, robustness and the like of the green wave coordination control alternative offer of the artery can be improved.

Description

technical field [0001] The invention relates to traffic signal coordinated control technology, in particular to a green wave coordinated control method for arterial roads oriented to driving speed intervals. Background technique [0002] Due to the limited level of urban traffic control in my country, the lack of road traffic management facilities, the overall traffic quality of traffic participants is not high, and the interference between various traffic flows is serious, the urban traffic signal control system has a high degree of complexity and uncertainty. How to reasonably set up a signal timing scheme with certain adaptability for a traffic period? How to scientifically preset a limited number of optional signal timing schemes for a control system? How to ensure that a good control effect can still be obtained when the characteristic parameters of the traffic system are disturbed and changed? It is an important practical problem faced by urban traffic signal control...

AI Technical Summary

Problems solved by technology

[0004] (1) The existing control methods either use a certain fixed speed value as the basis for the optimization of the green wave coordinated control scheme, or obtain an optimal green wave driving speed value in the final design, without considering the range of vehicle speed changes sex

[0005] (2) The existing control method does not take into account the uncertainty of the vehicle speed and the discreteness of the team's driving, and does not consider the change characteristics and distribution of the speed of the main road in different driving directions

[0006] (3) The existing control methods cannot comprehensively analyze and evaluate the green wave coordinated control alternatives based on the collected samples of different driving speeds, and cannot guarantee the adaptability of the selected scheme to the actual different driving speeds, and it is difficult to fully meet the needs of urban traffic signal control. the actual needs of

[0007] (4) The existing control method does not reflect the uncertainty of driving speed in the analysis and evaluation of the green wave coordinated control scheme, and lacks a comparative analysis of the operation effect of the coordinated control scheme with equal green wave bandwidth at a given average design speed , it is difficult to assess and quantify the overall risk of the coordinated control scheme

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