Method for controlling time length of traffic light according to population distribution thermodynamic diagram

Abstract

The invention provides a method for controlling a time length of a traffic light according to a population distribution thermodynamic diagram. The method comprises the following steps: step 1, obtaining a map with a plurality of traffic light locations within a region location; step 2, obtaining a real-time population distribution thermodynamic diagram corresponding to the map; step 3, matching aroad corresponding to the traffic light with the real-time population distribution thermodynamic diagram to obtain the real-time population distribution thermodynamic diagram corresponding to the traffic light road; and step 4, adjusting the time length of the traffic light according to the congestion rate of the road facing the traffic light. The road congestion rate is combined with the real-time population distribution thermodynamic diagram, so that the calculation of the road congestion rate is more accurate, the calculation amount is smaller, and data can be obtained in real time and analyzed easily.

Description

technical field [0001] The present invention relates to the field of intelligent transportation, and more specifically, to a control method for the duration of traffic lights. Background technique [0002] The intersections with relatively large traffic flow in big cities in my country are basically fixed-period signal control methods, and fixed green, yellow, and red light times are set at each intersection. The time of these traffic lights is a fixed time determined according to the statistical results of historical traffic flow. [0003] As more and more people choose to travel by car, the traffic flow situation becomes more and more complicated, and the traffic flow at the same intersection varies greatly in different periods of time. Therefore, the use of fixed traffic light time obviously cannot meet the needs of complex and changing vehicles. Traffic flow, the method for controlling traffic lights in the prior art is less flexible. Therefore, the problems in the prio...

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Problems solved by technology

[0003] As more and more people choose to travel by car, the traffic flow situation becomes more and more complicated, and the traffic flow at the same intersection varies greatly in different periods of time. Therefore, the use of fixed traffic light time obviously cannot meet the needs of complex and changing vehicles. Traffic flow, the method for controlling traffic lights in the prior art is less flexible. Therefore, the problems in the prior art need to be further improved and developed

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