Method for guiding vehicles at road intersection

Abstract

The invention discloses a method for guiding vehicles at a road intersection. The method is characterized in that: at least a row of guiding lamps are arranged on the ground of each lane leading to the road intersection; the guiding lamps have two colors of green and red; the length of the lanes provided with the guiding lamps is at least 200 meters from the intersection; traffic speed at the intersection is set; length of road occupied by the red and green guiding lamps is determined by the lasting time of the red and greed traffic lights and the traffic speed at the intersection; color sections of guiding lamps are controlled to perform movable display towards the intersection at the traffic speed at the intersection by changing displaying colors of guiding lamps at corresponding positions, so that the colors of the guiding lamps at the intersection are matched with the colors of the traffic lights. The method automatically divides vehicles into groups; each group of vehicles arrives at the intersection just when the traffic light is green; therefore, vehicles run through the intersection without waiting; and the method improves traffic capability of vehicles within the same green light period, reduces exhaust emission and saves gasoline.

Description

technical field [0001] The invention relates to a method for road traffic management, in particular to a method for guiding vehicles at traffic intersections. Background technique [0002] In the prior art, at traffic intersections, the passage of vehicles is usually guided by setting traffic lights. When the traffic lights are green, the corresponding vehicles can pass. When the traffic lights are red, the corresponding vehicles are prohibited from passing; At the intersection of lanes, left-turning, straight-going, and right-turning lanes are respectively set up, and there are also straight-going and right-turning lanes that share the same lane. On these lanes, ground traffic guidance signs are set to make vehicles drive in separate lanes according to the signs. [0003] However, because the switching time of red light and green light in traffic lights is random for drivers, it is difficult to predict the management state (release or prohibition) when arriving at the next ...

AI Technical Summary

Problems solved by technology

[0003] However, because the switching time of red light and green light in traffic lights is random for drivers, it is difficult to predict the management state (release or prohibition) when arriving at the next intersection, and it is impossible to judge which driving speed is appropriate when arriving at the intersection. When encountering a green light or a red light, you need to stop at the intersection, idle or turn off the engine and wait. When the red light turns into a green light, it takes a certain amount of time for the vehicle to start and accelerate, and the vehicle passes slowly. The utilization rate is relatively low; on the other hand, during the idling and starting periods of the vehicle, the emission concentration of carbon monoxide (CO), hydrocarbons (HC) and other pollutants will be significantly higher than that of normal driving, and the fuel consumption is also higher than that of slow normal traffic. High, the fuel consumption from the start to the economic speed stage can reach more than 5 times the average fuel consumption, and the fuel consumption of 3 minutes of idling can be enough for normal driving of 1-1.5 kilometers

Moreover, many drivers often encounter red lights or wait for too long, which will cause anxiety and irritability

[0004] The existing "green wave band" technology, due to the weak interaction with the driver, is limited to the setting of fixed vehicle speed and time period in terms of control means, and requires vehicles traveling in all directions at the intersection to maintain the same phase as the "green wave band". A certain degree of difficulty is greatly restricted in actual use, and often cannot achieve the desired effect

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