Traffic prediction and control system for vehicle traffic flows at traffic intersections

Abstract

The invention discloses a traffic prediction and control system for vehicle traffic flows at traffic intersections. A method and a traffic prediction and control system (TPCS) for predicting and controlling vehicle traffic flow through a traffic intersection dynamically with proximal traffic intersections are provided. The TPCS dynamically receives sensor data from sensors at a local traffic intersection, determines traffic flow parameters, and determines a traffic flow flux using the traffic flow parameters. The TPCS dynamically receives analytical parameters from sensors at proximal traffic intersections and determines a minimum safe driving distance between leading and trailing vehicles, a traffic free flow density, a synchronized traffic flow density, and a traffic jam density to predict transitions of the vehicle traffic flow across traffic flow phases through the local traffic intersection. The TPCS controls the vehicle traffic flow by dynamically adjusting duration of traffic signals of the local traffic intersection and transmitting traffic signal time adjustment instructions to the proximal traffic intersections to maintain an optimized traffic flow flux.

Description

technical field [0001] The application relates to the field of intelligent transportation, in particular to the traffic prediction and traffic light time control system of the vehicle traffic flow at the traffic intersection. Background technique [0002] Scientists, transportation researchers, transportation engineers, road engineers, urban planners, policy makers, computer scientists, economists, vehicle manufacturers, and the daily commuters who depend on transportation are interested in understanding the dynamics of vehicular traffic flow. features. As used herein, "vehicular traffic flow" refers to the movement of vehicles between two points or traffic intersections. Also, as used herein, a "traffic intersection" refers to an intersection between two or more roads that meet or intersect each other. Traffic congestion and traffic phase transitions affect those who encounter daily traffic jams in cities, metropolitan areas and highways. With the advent of wirelessly co...

AI Technical Summary

Problems solved by technology

However, these simulations cannot provide definitive conditions or analytical solutions for these phase transitions because many model parameters have to be introduced

Furthermore, they represent the relationship between traffic flow and traffic density using a triangle with the base of the triangle as the traffic density axis or an empirically derived curve (defined as a basic graph) for the sake of convenience, without justifiable scientific basis

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