Adaptive signal control method of urban road intersection

Abstract

The present invention discloses an adaptive signal control method of an urban road intersection. The method comprises the steps of: obtaining peak hour flows of N intersection approaches, K signal phases of the intersection and durations of a green light corresponding to the K signal phases of the intersection; setting T as a signal phase run time, wherein the initial value of the T is 1, and Tmaxis a set maximum run time of the signal phases; if a duration gj(T) of a green light of a jth signal phase at a Tth time is larger than a minimum value gmin of the green time of each signal phase, giving rights of passage to mj'(T) social vehicles and m'j'(T) public transport vehicles corresponding to the j'th signal phase of the intersection at the Tth time; if the duration gj(T) of the green light of the jth signal phase of the intersection at the Tth time is larger than a maximum value gjmax of the green time of the jth signal phase, giving rights of passage to mj''(T) social vehicles andm''j''(T) public transport vehicles corresponding to the j''th signal phase of the intersection; and going on execution until the run time reaches the Tmax time to complete adaptive signal control ofthe urban road intersection.

Description

technical field [0001] The invention relates to the technical field of traffic control, in particular to an adaptive signal control method for urban road intersections. Background technique [0002] Since the beginning of the 21st century, the number of vehicles per capita in cities has gradually increased. However, the construction and management of urban roads cannot effectively solve the contradiction between road traffic demand and supply, resulting in increasingly serious urban congestion, especially at urban road intersections. Obviously prominent; For this reason, various control and management methods for intersections arise at the historic moment; Yet, the existing intersection signal control method all only considers the quantity of each entrance direction vehicle and carries out the distribution of intersection right of way, This results in ignoring the waiting time and waiting tolerance of people at intersections, and reduces the substantial service level of urba...

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Problems solved by technology

[0002] Since the beginning of the 21st century, the number of vehicles per capita in cities has gradually increased. However, the construction and management of urban roads cannot effectively solve the contradiction between road traffic demand and supply, resulting in increasingly serious urban congestion, especially at urban road intersections. Obviously prominent; For this reason, various control and management methods for intersections arise at the historic moment; Yet, existing intersection signal control method all only considers the quantity of each entrance direction vehicle and carries out the distribution of intersection right of way, This results in ignoring the waiting time and waiting tolerance of people at intersections, and reduces the substantial service level of urban road intersections

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