United States Department of Transportation
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Connecting Pedestrians with Disabilities to Adaptive Signal Control for Safe Intersection Crossing and Enhanced Mobility: Concept of Operations [2018]
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2018-05-01
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[PDF-1.99 MB]
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Alternative Title:Connecting Pedestrians with Disabilities to Adaptive Signal Control for Safe Intersection Crossing and Enhanced Mobility: Concept of Operations (ConOps);Safe Intersection Crossing: Concept of Operations;
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Edition:Year 1 Report
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Abstract:This project aims to develop a mobile app that enables pedestrians with disabilities to more safely and more efficiently cross signalized intersections. The proposed technology concept is a smart phone app that interacts directly with a real-time, adaptive traffic signal control system at the intersection via Dedicated Short Range Communication (DSRC) radio technology. Basic capabilities will enhance safety by allowing the user (1) to communicate crossing intent and required crossing time, and receive an extended crossing duration, (2) to receive feedback if movement outside of the crosswalk is detected during crossing, and (3) to dynamically extend the crossing duration if slower than expected crossing progress is observed. Advanced capabilities will include anticipation of the user’s arrival at the intersection and minimizing wait time and (2) utilizing real-time bus information to better synchronize user arrival times at bus stops. This document details the overall Concept of Operations of the proposed app, including a discussion of the current use state, rationalization for the changes, the range of user scenarios that it is intended to support, and its impact.
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