Intersection Control System for Un-signalized Traffic Flow
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Solution Overview
Problem
Un-signalized intersections, such as roundabouts, face challenges with traffic congestion and safety due to competing vehicles and inconsistent speeds, which existing technologies have not adequately addressed.
Innovation Solution
An intersection control system that acquires current dynamic characteristics of moving objects, determines dynamic traffic flow, predicts future characteristics using predictive control, and calculates entry parameters for vehicles, notifying them to improve traffic flow and safety through real-time analysis and communication networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicles traverse the roundabout at low and inconsistent speed, then safety is improved by decreasing accident impact, but traffic flow efficiency deteriorates causing congestion
Solution Approach 1:
The system dynamically adjusts vehicle entry parameters based on real-time traffic conditions, predicting future states and optimizing speed and entry timing for each vehicle to maintain both safety and flow efficiency
Solution Approach 2:
The system continuously monitors current dynamic characteristics of moving objects, uses this feedback to predict future traffic states, and adjusts entry parameters accordingly to resolve the contradiction between safety and efficiency
2Ease of operation
If vehicles compete to enter the un-signalized intersection, then ease of operation is improved by allowing free access, but safety deteriorates due to increased conflict points
Solution Approach 1:
The system performs preliminary prediction of future traffic states and calculates optimal entry parameters before vehicles reach the intersection, allowing them to enter safely without stopping or competing
Solution Approach 2:
The predictive control system acts as an intermediary between vehicles and the intersection, coordinating entry timing and parameters to eliminate conflicts while maintaining access freedom
Data Source
AI summary
The present disclosure is directed toward a method that includes acquiring current dynamic characteristics of a moving object about an un-signalized intersection, determining a dynamic traffic flow of the un-signalized intersection based on the current dynamic characteristics to determine a position of the moving object about the un-signalized intersection, and predicting future dynamic characteristics of the moving object based on the dynamic traffic flow and a predictive control. The future dynamic characteristics includes a predicted position of the moving object at a predefined time in the future. The method further calculates an entry parameter for a vehicle about an entrance of the un-signalized intersection based on the dynamic traffic flow and the predicted future dynamic characteristics and notifies the vehicle of the entry parameter.