Method for predicting traffic flow of double-lane roundabout intersection with participation of signal lamps

Abstract

The invention discloses a method for predicating traffic flow of a double-lane roundabout intersection with participation of signal lamps. The method comprises the following steps: 1, dividing the double-lane roundabout intersection into cellular spaces, and establishing a coordinate system; 2, marking vehicles, and establishing a random distribution vehicle arrival model with participation of signal lamps; and 3, introducing an advancing rule, a lane changing rule, a traffic flow parameter and the random distribution vehicle arrival model into a cellular automaton model, and predicting the traffic flow. The maximum value and the minimum value of the average speed of the vehicles running in the roundabout within a certain time period or the longest time and the shortest time of the vehicles running in the roundabout can be predicted, and method support is provided for active prevention and control of urban traffic congestion and energy management in vehicle running.

Description

technical field [0001] The invention relates to the technical field of traffic control, and more specifically, the invention relates to a method for predicting traffic flow at a two-lane roundabout intersection with the participation of signal lights. Background technique [0002] With the development of today's social economy and the continuous increase of car ownership, the contradiction between the relatively slow construction of traffic facilities and the rapid increase of car ownership has become increasingly prominent, and the problem of traffic congestion has become increasingly serious. Especially in the traffic around the island, due to the continuous increase of car ownership and traffic flow, the capacity of most traffic around the island can no longer meet the needs of vehicle operation, resulting in serious congestion problems. In round-island traffic, the operating characteristics of traffic flow are complex, and with the introduction of traffic lights into rou...

AI Technical Summary

Problems solved by technology

Especially in round-island traffic, due to the continuous increase of car ownership and traffic flow, the capacity of most round-island traffic can no longer meet the needs of vehicle operation, resulting in serious congestion problems

In round-island traffic, the operating characteristics of traffic flow are complex, and with the introduction of traffic lights into round-island traffic, this complexity is exacerbated, making it difficult to model traffic flow at round-island intersections with signal lights

[0003] Due to the huge impact of the roundabout construction and the increasing phenomenon of using traffic lights to regulate the traffic flow around the island, there are relatively few studies on the traffic flow prediction of the roundabout intersections, and most of them focus on the traffic flow model of the roundabout intersections with single lanes and no signal lights. Few studies have been conducted on traffic flow prediction at two-lane roundabouts with traffic lights

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