A bus priority signal control method without bus lanes

Abstract

The invention discloses a bus priority signal control method not involved with a bus lane. The bus priority signal control method not involved with the bus lane comprises the steps that (1) a bus priority request is detected, (2) bus arrival information is extracted, (3) the time for a bus to reach a stop line of an intersection is estimated by a signal control machine according to the serial number information, the positional information, the direction information and the speed information of the bus, (4) the priority time required by a phase position is calculated, (5) the shortest green time and the longest green time of the phase position are set, and (6) the signal control machine controls a signal lamp to be turned on according to a bus priority signal control rule. The bus priority signal control method not involved with the bus lane is suitable for being used under the condition that buses come in multiple directions or under the condition that multiple buses come in one direction, calculation is conducted based on the floating car theory, so that when certain buses stop or new bus priority requests are received, the bus arrival time can be re-calculated and updated, the strategy is adjusted rapidly, the calculation speed is high, the real-time performance is high, and the accuracy is high.

Description

technical field [0001] The invention relates to a public traffic priority passing method, in particular to a method for controlling a public traffic priority traffic signal without a dedicated bus lane. Background technique [0002] Public transport priority in a broad sense is the abbreviation of public transport priority development, which means that in urban development and planning, the construction of public transport is given priority, and the state provides policy, financial and technical support. At present, motor vehicles are increasing rapidly in many big cities in my country, and the contradiction of more vehicles and fewer roads is becoming more and more serious. Traffic problems have become a serious obstacle to urban development. Compared with private transportation, public transportation has the advantages of large transportation volume, low energy consumption per unit, and environmental protection. It can also save road resources, save investment in road cons...

AI Technical Summary

Problems solved by technology

[0005] In some existing patents, the research on bus priority control strategies without bus lanes is not comprehensive enough

For example, the patent "A Bus Priority Control Method" proposes that after the bus is detected, the timing is adjusted only by extending the green light time of the bus phase and shortening the red light time of other phases, but the bus detection distance is short and cannot effectively solve the problem of multiple directions. problem; the patent "A Method of Intersection Signal Timing Control to Ensure Bus Priority" does not propose a method for estimating the bus arrival time, but only prolongs the green light time until the bus passes, rather than determining the extended green light time in advance, when there is The strategy cannot be adjusted in time when other buses arrive, and the maximum green light time constraint is not set, which may make the waiting time of other phases too long

At the same time, domestic patents do not consider the impact of buses stopping near intersections

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