Adjusting traffic lights

摘要

A method and system for adjusting traffic lights. The method and system can dynamically divide a region according to the road congestion situation and adjust traffic lights in a resulting control region according to the control region, so as to solve the traffic congestion problem. The system for adjusting traffic lights includes: a congestion determining module, a control region determining module and a adjusting module, wherein the control region determining module is configured to determine a control region according to a dispersion demand of a first phase and a dispersal capability of a corresponding phase of an adjacent intersection, and the adjusting module is configured to adjust traffic lights of at least one corresponding phase of an adjacent intersection in the control region so as to relieve the traffic congestion situation at the first phase of the first intersection. Also described is a corresponding method for adjusting traffic lights.

主权项

1. A system for adjusting traffic lights, comprising:
a congestion determining module configured to determine whether or not congestion occurs at a first phase of a first intersection; a control region determining module configured to, in response to congestion occurring at the first phase of the first intersection, obtain a dispersion demand of the first phase of the first intersection and a dispersal capability of a corresponding phase of an adjacent intersection, and determine a control region according to the dispersion demand of the first phase and the dispersal capability of the corresponding phase, wherein the control region includes at least one corresponding phase of an adjacent intersection; and an adjusting module configured to adjust traffic light(s) of the at least one corresponding phase of an adjacent intersection in the control region so as to relieve the traffic congestion situation at the first phase of the first intersection; wherein said adjacent intersection includes an upstream intersection of the first intersection, the corresponding phase of the upstream intersection is an upstream phase of the first phase, the dispersion demand of the first phase is a maximum number of vehicles that the upstream phase can release in its green period, and the dispersal capability is the minimum number of vehicles that the upstream phase needs to release in its green period; and wherein the adjusting module is further configured to adjust the split green ratio of the upstream phase so as to reduce released vehicles of the upstream phase.