Self-adaptive control method for elevated ground linkage traffic signal area

Abstract

The invention particularly relates to a self-adaptive control method for an elevated ground linkage traffic signal area. The method comprises the following steps: ramp information research and management; setting a ramp signal control threshold; timing adjustment is carried out according to road flow, vehicle queuing length changes and elevated signal lamps; the ground intersection is linked with an overhead signal by using various signal control modes; related road conditions and traffic control information are automatically pushed to a platform and an induction screen, and vehicles are induced in real time; and carrying out scheme analog simulation, carrying out tracking evaluation on a scheme implementation effect, and carrying out improvement optimization on the scheme according to an evaluation result. According to the elevated ground linkage traffic signal area self-adaptive control method provided by the invention, the linkage control of elevated and ground signals can be realized, the upstream and downstream supply and demand pressures are balanced, the road right is scientifically distributed to surrounding roads, the traffic veins are dredged, and the traffic capacity of a main road is improved.

Description

technical field [0001] The invention relates to the technical field of traffic signal control, in particular to an adaptive control method for an elevated ground linkage traffic signal area. Background technique [0002] With the development of cities, the number of motor vehicles continues to increase. As the "artery" of traffic roads, urban expressways play a vital role. However, the traffic pressure on urban expressways is too high. The traffic operation situation is not optimistic, and some urban expressways are mostly built in the early stage, which is difficult to meet the growing traffic demand. In the daily traffic operation, the vehicle interweaving and conflicts are obvious at the confluence of the elevated ramp and the main line, resulting in serious traffic conflicts at the confluence of the elevated ramp. The frequent and disorderly interference between the traffic flows significantly reduces the efficiency of traffic operation, presenting disorder and congestio...

AI Technical Summary

Problems solved by technology

[0003] The existing ramp signal control methods on expressways have the following disadvantages: ①The control scheme is turned on at regular intervals, which cannot adapt to daily traffic changes; ②The signal timing scheme is fixed, and it is difficult to match the changing conditions of the ramp traffic; Easy queuing overflow; ④ control information cannot be pushed to the involved traffic participants at the first time; ⑤ no subsequent optimization iterations for the timing plan

Images