A priority control method for trams considering green waves under independent road rights

Abstract

The present invention discloses a tramcar priority control method taking consideration of green waves in an independent road right. The control method comprises the steps of: determining whether a tramcar can enter tramcar green waves in a downstream signal control subarea at a steady operating normal speed or not; and determining whether the tramcar can enter the tramcar green waves in the downstream signal control subarea at the steady operating maximum speed or not, and determining whether the tramcar can pass through the tramcar green waves in the downstream signal control subarea at the steady operating maximum speed or not when duration of a green light of a crossing being closest to the tramcar is set to the maximum green light extension time. The control method is employed to provide conditional priority control for the tramcar entering a new control subarea so as to ensure that tramcar can rapidly pass through the crossing as far as possible in a non-parking mode and improve the traveling benefit of social vehicles and the service level of the tramcar.

Description

technical field [0001] The invention relates to the technical field of transportation, in particular to a tram priority control method considering green waves under independent road rights. Background technique [0002] Trams with independent right-of-way enjoy independent right-of-way in the road section, so the running speed is high and stable, and will not be disturbed by social vehicles. At the intersection, trams are controlled by traffic lights like social vehicles and traditional public buses, so the travel time of trams is easily affected by the signal control of intersections. Existing strategies mainly use the intersection priority control method to reduce the impact of intersection signal control on the operation of public transport vehicles such as trams and traditional ordinary public transport vehicles. However, there are some differences between traditional ordinary public transport vehicles and trams, which are specifically manifested in the fact that trams ...

AI Technical Summary

Problems solved by technology

The above existing tram signal priority control methods only consider the condition priority of the tram when passing the current intersection, but ignore the influence of the downstream intersection signal control

Therefore, it is easy to cause invalid priority control at the current intersection, that is, trams can pass preferentially at the current intersection, but cannot pass preferentially at the downstream intersection. Although such invalid priority control sacrifices the benefits of social vehicles, it may cause social vehicles Congestion is intensified, but it still cannot reduce the impact of intersection signal control on trams, and cannot improve the service level of trams

The invention patent with the application number 201610324192.0 discloses a tram signal prioritization method for offline coordination at multiple intersections. This method is an offline prioritization method and cannot perform real-time prioritization of trams.

In addition, this method only gives priority to the coordination of trams within the coordination interval, and does not consider the operation of trams between two coordination intervals, and the signal period lengths of the two coordination intervals are often inconsistent, so the two coordination intervals The phase difference between them is constantly changing over time, so that when the tram enters a new coordination section, it will be affected by the red light and reduce the operating efficiency

[0004] To sum up, most of the existing priority control methods for trams only focus on the current intersections to pass, while ignoring the influence of signal timing at downstream intersections. traffic efficiency, and does not help to improve the service level of trams

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