United States Department of Transportation
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Connecting Pedestrians with Disabilities to Adaptive Signal Control for Safe Intersection Crossing and Enhanced Mobility: System Design Document [2018]
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2018-08-01
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[PDF-3.04 MB]
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Alternative Title:Safe Pedestrian Crossing System Design Document
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Edition:Year 1 Report
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Abstract:This document presents the system design of a mobile application for use by pedestrians with disabilities to facilitate safe and efficient intersection crossing. The mobile application is designed to allow the pedestrian to communicate directly to the intersection and to actively influence traffic control decisions. Most basically, the mobile application enables the pedestrian to communicate personalized crossing duration requirements to the infrastructure. However, the mobile app is also capable of monitoring pedestrian progress, and by utilizing the SURTRAC real-time adaptive traffic signal control system, it is capable of triggering dynamic extension of the green phase if necessary. Various aspects of the design are specified, including the physical architecture, the DSRC-based pedestrian-to-infrastructure communication framework, the mobile application’s user interface, and necessary extensions to the SURTRAC adaptive signal control system.
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