PedPal Lite: An ATSC-Independent Safe Intersection Crossing App

Smith, Stephen F.

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PedPal Lite: An ATSC-Independent Safe Intersection Crossing App

2024-10-30
By Smith, Stephen F.

File Language:

English

Details

Creators:

Smith, Stephen F.
Corporate Creators:

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 ; Carnegie Mellon University. Traffic21 Institute. Safety21 University Transportation Center (UTC) ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Accessibility Crosswalks Mobile Applications Pedestrian Actuated Controllers Pedestrian Movement Pedestrians Persons With Disabilities Signalized Intersections Vehicle To Infrastructure Communications
Publication/ Report Number:

465
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report (July 1, 2023-June 30, 2024)
Contracting Officer:

Stearns, Amy
Corporate Publisher:

Carnegie Mellon University. Traffic21 Institute. Safety21 University Transportation Center (UTC)
Abstract:

PedPal is a smartphone app designed to assist pedestrians with disabilities in safely crossing signalized intersections through real time interaction with the SURTRAC ATSC system running at the intersection. Motivated by the desire to provide a cheaper and more broadly deployable variant of PedPal, this report describes the design of PedPal Lite, which eliminates the App’s dependence on SURTRAC and instead interacts directly with any NEMA-compliant controller running at the intersection. Other App improvements relating to the use of ultra-wide band beacons at the intersection to improve App localization capabilities and the capability to detect user movement outside of the crosswalk during crossing are also described.
Format:

PDF
Funding:

69A3552344811
Collection(s):

University Transportation Centers
Main Document Checksum:

urn:sha-512:1f501ad35d2ab76bfb0867cae263e2ccc8f70a1e394133a25cf5e6395e3214fdf35b268c903a5732e5f283ea657e6fbe190e08c0ccf17563c6265f362f9c673c
Download URL:

https://rosap.ntl.bts.gov/view/dot/78711/dot_78711_DS1.pdf
File Type:

[PDF - 1.07 MB ]

File Language:

English

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