Safe Intersection Crossing for Pedestrians With Disabilities

Smith, Stephen F.; Rubinstein, Zachary B.; Mobility21, Carnegie Mellon University

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Safe Intersection Crossing for Pedestrians With Disabilities

2021-11-01
By Smith, Stephen F. ; Rubinstein, Zachary B.

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English

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Details:

Creators:

Smith, Stephen F. ; Rubinstein, Zachary B.

Smith, Stephen F. ; Rubinstein, Zachary B. Less -
Corporate Creators:

Mobility21, Carnegie Mellon University
Corporate Contributors:

United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology

United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology Less -
Subject/TRT Terms:

[+]

Mobile Applications Pedestrian Detectors Pedestrian Movement Persons With Disabilities Signalized Intersections
Publication/ Report Number:

Mobility21 Project # 40459.14.1080376
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report
Corporate Publisher:

Mobility21, Carnegie Mellon University
Abstract:

The focus of this project has been on addressing some remaining obstacles to the general deployment of PedPal, a smartphone app that assists pedestrians with disabilities in safely crossing signalized intersections. Specifically, work has centered mainly on the design and development of two new capabilities: (1) an approach to localization that is accurate enough to enable detection of pedestrian arrival at a given corner of the intersection as well as active monitoring of progress during crossing, and (2) a scalable V2I/P2I communication infrastructure. With regard to localization, work has focused on utilizing the increasing availability of ultrawideband (UWB) sensors to overcome the inaccuracy of Bluetooth beacons positioned at intersection corners. Experiments have been performed to verify the accuracy of UWB devices in this context, extensions to the app have been implemented to allow receipt of distance data from UWB sensors positioned at the intersection, and algorithms have been developed for both reliable identification of intersection corners and for tracking of pedestrian progress through the intersection.
Format:

PDF
Funding:

69A3551747111
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:a97166c79361f229c550edd8c57ec1d4f42b81a6d7bc02d45b042f7875728bd2
Download URL:

https://rosap.ntl.bts.gov/view/dot/59230/dot_59230_DS1.pdf
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Safe Intersection Crossing for Pedestrians With Disabilities

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