A Traffic Flow Prediction Method for Two-lane Roundabout Intersections with Signal Lights

Abstract

The invention discloses a method for predicting traffic flow at a two-lane roundabout intersection with signal lights, which comprises the following steps: step 1, dividing the two-lane roundabout intersection into cell spaces and establishing a coordinate system; step 2, marking vehicles and establishing a A random distribution vehicle arrival model in which signal lights participate; step 3, introducing the traveling rules, lane changing rules, traffic flow parameters and the random distribution vehicle arrival model into the cellular automaton model to predict traffic flow. The invention can predict the maximum and minimum average speeds of vehicles traveling in the roundabout within a certain period of time, or the longest and shortest time for vehicles traveling in the roundabout, etc. Provide method support for energy management issues.

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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