United States Department of Transportation
i
Connected Vehicle Pilot Deployment Program Phase 3, Mobile Accessible Pedestrian Signal System (PED-SIG) – New York City Department of Transportation (NYCDOT)
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2021-12-29
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[PDF-3.48 MB]
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Abstract:New York City is piloting connected vehicle (CV) technology to support the Vision Zero initiative and help eliminate injuries and fatalities caused by crashes. As a part of the USDOT CV Pilot Deployment Program, a Mobile Accessible Pedestrian Signal System (PED-SIG) was developed. The PED-SIG application provides audio alerts and haptic prompts to assist pedestrians with vision disabilities in safely crossing streets at instrumented intersections. This study identified four signalized intersections instrumented with CV- technologies and designed six pre-defined routes to test the developed PED-SIG application. Volunteer participants with vision disabilities were recruited to participate in the field tests where Personal Information Devices (PIDs) were given to participants. This technology supports cellular communications (4G, LTE) to receive localized Signal Phase and Timing (SPaT) and MAP messages broadcast by the local Roadside Unit (RSU) to provide information about intersection geometry and the current intersection signal status. The evaluations are based on operational data logs collected from the PIDs, observations of participants during field tests, as well as qualitative feedback provided by participants before and after the tests, through surveys conducted by the research team.
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