Connecting Pedestrians With Disabilities to Adaptive Signal Control for Safe Intersection Crossing and Enhanced Mobility: 2018 Field Test and Evaluation

PedPal is a prototype mobile (smartphone) app designed to assist pedestrians with disabilities when crossing the street at signalized intersections. PedPal interacts directly with the traffic signal system controlling the intersection to communicate both crossing intent (eliminating the need to seek out and push a pedestrian call button) and personalized crossing constraints (ensuring sufficient time is allocated for the pedestrian to cross). Future versions of PedPal will incorporate the ability to monitor crossing progress and to dynamically extend the crossing time in situations where more time is needed to safely get across, as well as provide enhanced capabilities aimed at improving crossing efficiency and general mobility. In this report, the authors summarize an initial series of user tests that were conducted with the PedPal mobile app and present the results that were obtained.

• Record URL:
  https://rosap.ntl.bts.gov/view/dot/39011
• Corporate Authors:

  Carnegie Mellon University

  5000 Forbes Avenue
  Pittsburgh, PA  United States  15213

  Department of Transportation

  Intelligent Transportation Systems Joint Program Office
  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Smith, Stephen
  • Rubinstein, Zachary
  • Dias, Bernardine
  • Sarkhili, Sara
  • Ashqar, Huthaifa
  • Farber, Maurice
  • Lodato, Diego
  • Harper, Corey
• Publication Date: 2018-9

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Photos; Tables;
• Pagination: 50p

Subject/Index Terms

• TRT Terms: Crosswalks; Dedicated short range communications; Mobile applications; Pedestrian safety; Pedestrians; Persons with disabilities; Prototype tests; Signalized intersections; Smartphones
• Identifier Terms: PedPal; Real-time Traffic Adaptive Signal Control System
• Subject Areas: Highways; Operations and Traffic Management; Pedestrians and Bicyclists; Safety and Human Factors;

Filing Info

• Accession Number: 01701706
• Record Type: Publication
• Report/Paper Numbers: FHWA-JPO-18-706, Task 1.3 Report
• Contract Numbers: DTFH6117C00014
• Files: NTL, TRIS, ATRI, USDOT
• Created Date: Apr 9 2019 8:23PM