Dual-line tram signal priority control method at intersections based on Internet of vehicles

Abstract

The invention discloses a dual-line tram signal priority control method at intersections based on the Internet of vehicles, which includes the following steps: S1, setting signal priority request areas; S2, detecting whether there is a new tram entering the signal priority request areas in two tram lines which issues a signal priority request, and using an existing intersection signal timing scheme to control the passing of trams if there is no new tram issuing a signal priority request; S3, when a new tram is detected to issue a signal priority request, designing a corresponding signal priority strategy for the new tram; S4, predicting the comprehensive maximum queuing length of social vehicles at the intersection under the signal priority strategy based on an established intersection discrete traffic flow model; S5, judging whether the current signal priority request is in conflict with an existing tram signal priority request in the opposite line, and determining the type of conflict if there is conflict; and S6, determining a dual-line signal priority strategy sequence, and updating and executing the existing intersection signal timing scheme.

Description

Technical field [0001] The invention relates to the field of transportation control, in particular to a signal priority control method for dual-line trams at intersections based on the Internet of Vehicles. Background technique [0002] With the development of cities, the number of civilian vehicles continues to increase. However, the existing traffic facilities and control methods cannot meet the increasing demand for road traffic, resulting in increased traffic congestion, exhaust emissions and safety accidents. As a medium-capacity rail vehicle, modern trams have the advantages of low cost, no pollution, high speed and high comfort. Trams generally operate in a semi-independent right-of-way manner on the road. They run on the road through a dedicated track driving area, while at road intersections, they share the right of way with social vehicles and pedestrians. [0003] With the continuous construction of modern trams in my country and the increase of lines, there will be two...

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