Intersection Traveler Detection via Mobile Device Communication
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Solution Overview
Problem
Current traffic management systems are inefficient in detecting and prioritizing pedestrians and non-motorized vehicles at intersections, leading to frustration and safety issues, as they rely primarily on motor vehicle detection methods that fail to account for the presence and needs of cyclists, pedestrians, and other non-motorized travelers.
Innovation Solution
A system that uses mobile communication devices for travelers to transmit their location and direction of travel information to traffic signal controllers, allowing for priority assignment and signal timing adjustments based on the mode of transportation, enabling more efficient and safe passage through intersections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional motor vehicle detection methods are used at intersections, then motor vehicle traffic flow can be controlled, but pedestrians and non-motorized vehicles cannot be detected or prioritized
Solution Approach 1:
The patent applies universality by enabling traffic signal systems to detect and prioritize multiple types of travelers (motor vehicles, cyclists, pedestrians) using a unified detection framework. The system universally applies detection algorithms across different traveler categories, allowing the same infrastructure to serve diverse transportation modes without requiring separate specialized systems for each type.
Solution Approach 2:
The patent introduces mobile communication devices as intermediaries that bridge the gap between travelers and traffic signal controllers. These devices transmit location and travel information from travelers to the control system, enabling detection of non-motorized travelers without requiring direct sensing infrastructure at every intersection. The intermediary device mediates the communication between the traveler and the traffic management system.
2Productivity
If traffic signal controllers only prioritize motor vehicles, then motor vehicle efficiency is maintained, but pedestrians and cyclists experience delays and safety issues
Solution Approach 1:
The patent implements feedback mechanisms where mobile communication devices continuously transmit traveler location and intent information to traffic signal controllers. The controllers use this feedback to dynamically adjust signal timing, extending green phases or providing protected turning phases when pedestrians or cyclists are detected approaching intersections. This closed-loop feedback system ensures non-motorized travelers receive timely and reliable protection while maintaining overall traffic flow efficiency.
3Measurement precision
If detection zones are expanded to cover larger areas, then more travelers can be detected, but false detections and system errors increase
Solution Approach 1:
The patent applies local quality by implementing varying detection sensitivity and parameter requirements across different spatial zones. High-precision geometric checks and multiple parameter verification are applied in areas where false detections are more likely, while maintaining broader coverage in areas with clearer detection conditions. The system adjusts detection thresholds and validation requirements locally based on the specific characteristics of each detection zone, optimizing both coverage and accuracy.
Data Source
AI summary
A system and method that enables individual travelers, including pedestrians or individuals on smaller conveyances, to communicate their location and direction of travel to signal light controllers at an intersection, enables traffic networks to receive this communication and output the detected data to the corresponding intersection traffic-signal controller to allow for individuals not in standard motor vehicles to be detected by traffic detection systems and to allow for priority of traveler flow either independent of vehicle use, or based on specifics of the vehicle used.