A level crossing cooperative control system for trams

Abstract

The invention provides a coordinated control system for a grade crossing of a tramcar. A control strategy that the single tramcar is relatively prior to other walking manners in the grade crossing is provided to solve the problems that a signal control system of the modern tramcar is complex, the passing efficiency of the grade crossing is low, the crossing includes much interference and a hidden safety hazard exists when the tramcar and social vehicles pass in a mixed way. A common four-phase grade crossing serves as a research object, and influence on the social vehicles is reduced as possible on the basis that prior passing of the tramcar is ensured. A strategy of green-light extension, red light early cutoff or phase crossing is selected for phase control, and in special conditions, a prior phase insertion strategy is adopted to improve the passing efficiency of the grade crossing. The system is conducive to high-efficiency, safe and convenient operation of the tramcar.

Description

technical field [0001] The invention relates to a tram priority control system, which belongs to the field of urban traffic control. Background technique [0002] As an environment-friendly urban rail transit system with the advantages of low construction cost, short construction period, energy saving and comfort, tram has been widely used in developed cities abroad. Compared with foreign countries, trams are still a new thing in China, and the technology is still in its infancy, and it does not have complete regulations and operating plans like foreign countries. Furthermore, our country has a large population and a complex traffic environment. When the tram passes through a level crossing, the conflict with social vehicles greatly reduces the operating efficiency of the vehicle, and there are many safety hazards. Copying foreign tram technology cannot solve the problem in our country. Existing Problems. The patent of Harbin Institute of Technology "A Tram Priority Contro...

AI Technical Summary

Problems solved by technology

Furthermore, our country has a large population and a complex traffic environment. When the tram passes through a level crossing, the conflict with social vehicles greatly reduces the operating efficiency of the vehicle, and there are many safety hazards. Copying foreign tram technology cannot solve the problem in our country. Existing Problems

The patent of Harbin Institute of Technology "A Tram Priority Control Method Considering the Increased Upper Limit of Vehicle Delay in Non-Priority Phase" considers the delay of vehicles in non-priority phases, and thus adopts an optimization strategy. " and other articles mentioned the calculation of signal priority parameters and the introduction to control, but they did not classify and discuss the different walking modes of trams to obtain different control schemes.

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