Ramp entrance traffic control system and method based on radar

Abstract

The invention provides a ramp entrance traffic control system and method based on radar. The invention relates to the technical field of intelligent traffic management. A double-domain radar is arranged on a main road to obtain vehicle dynamic queuing information on the main road; a single-domain radar is arranged on a ramp to obtain vehicle congestion information on the ramp, the traffic condition of the intersection of the current ramp and the main road is known in real time according to the vehicle dynamic queuing information and the vehicle congestion information, opening and closing of the ramp entrance are controlled in real time, a traffic congestion problem is more flexibly solved, and long-term stable use can be achieved.

Description

technical field [0001] The invention relates to the technical field of intelligent traffic management, in particular to a radar-based ramp entrance traffic control system and method. Background technique [0002] Urban main roads refer to the roads located in the city that are suitable for the rapid passage of motor vehicles. According to our country's urban expressway design standards, it should be able to provide vehicles with a fast, efficient, comfortable and safe driving environment. However, with the rapid development of the economy, the rapid increase of motor vehicles, coupled with the attraction of expressways to travelers, a large number of traffic flows into expressways, resulting in traffic demand exceeding traffic supply on expressways, and traffic congestion is common, showing reduced driving speed, Traffic accidents increase, fuel consumption increases, air pollution intensifies, and operating efficiency decreases. [0003] Since the urban main road is an im...

AI Technical Summary

Problems solved by technology

Among them, timing control uses fixed timing to control the entrance ramp, and calculates the fixed ramp adjustment rate based on historical traffic data. Timing control runs stably, but it cannot adapt to real-time changing traffic flow; although induction control can detect traffic flow data in real time, it cannot However, it is easy to cause a large amount of traffic on the entrance ramp to drive into the main road, causing traffic congestion on the main road. Therefore, induction control is suitable for use when the traffic flow on the main road is small.

In addition to timing control and induction control, other existing on-ramp traffic control methods have their own applicable conditions, and it is difficult to accurately meet the traffic control requirements of on-ramps

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