Virtual Traffic Gate Control for Selective Junction Access
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Solution Overview
Problem
Existing traffic management systems struggle to selectively control and restrict traffic in specific directions based on the identity or action of vehicles and users, particularly in junctions where certain types of traffic need to be allowed or restricted, such as for residents, emergency vehicles, or construction zones, without causing congestion or disrupting pedestrian flow.
Innovation Solution
A virtual gate system using traffic signals, dynamic message signs, and indicator lights that communicate with a computing network to adaptively control traffic flow, allowing or restricting access based on user identity, vehicle type, and time, using geofences, sensors, and mobile device communication to manage traffic phases and physical barriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traffic is restricted in specific directions through traditional fixed signal systems, then unauthorized traffic is blocked, but authorized traffic (emergency vehicles, residents) cannot navigate through restricted areas
Solution Approach 1:
The traffic signal system dynamically changes signal phases based on real-time detection of vehicle identity and type. Authorized vehicles such as emergency vehicles and residents receive dynamic green light signals, while unauthorized vehicles receive red signals, enabling the system to adapt its behavior based on the specific traffic context rather than following fixed timing patterns
Solution Approach 2:
The system uses sensors and communication networks to detect vehicle identity and type, then feeds this information back to the traffic signal controller which adjusts signal phases accordingly. This closed-loop feedback mechanism enables selective access control where the system responds to actual traffic conditions and vehicle characteristics
2Productivity
If traditional traffic signals are used without adaptive control, then system complexity is low, but traffic congestion occurs and traffic flow efficiency decreases
Solution Approach 1:
The traffic signal system performs multiple functions: it controls traffic phases for general traffic management, identifies vehicle types through sensors and communication networks, determines authorization status, and dynamically adjusts signals accordingly. This multi-functionality consolidates what would otherwise require separate systems into a unified platform
Solution Approach 2:
The system automatically detects vehicle identity and type, determines authorization status, and adjusts signal phases without requiring manual intervention. The traffic management system serves itself by making real-time decisions based on detected traffic conditions and vehicle characteristics
3Measurement precision
If selective access control is implemented without mobile device communication, then system complexity is reduced, but the ability to identify and authorize specific vehicles is lost
Solution Approach 1:
Mobile devices serve as intermediaries between vehicles and the traffic management system. The mobile device communicates vehicle identity information to the traffic signal controller through a communication network, enabling precise vehicle identification without requiring complex direct detection systems at every traffic signal location
Data Source
AI summary
A system for adaptively controlling traffic control devices having a traffic signal system, a computing network, and a communication system is configured to restrict traffic in one or more directions through a junction and to selectively allow traffic through the restricted directions based, in part, on an identity or action of certain traffic. The traffic signal system is configured to be in communication with the computing network through the communication system. The mobile device is also configured to be in communication with the computing network through the communication system. Then the computing network adaptively controls the traffic signal system using a location of the mobile device.