Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Research in Progress (RIP) https://rip.trb.org/Images/PageHeader-wTitle-RIP.jpg https://rip.trb.org/ Audible Indications for Accessible Pedestrian Signals https://rip.trb.org/View/2381696 Mon, 20 May 2024 21:26:19 GMT https://rip.trb.org/View/2381696 Navigation Guidance for People With Vision Impairment https://rip.trb.org/View/1369996 Tue, 22 Sep 2015 15:44:10 GMT https://rip.trb.org/View/1369996 Enhanced Pedestrian Crossing - Experimenting with Alternatives to MUTCD standards for Crossing Signals and Evaluating Best Practices for Installing Accessible Pedestrian Signals https://rip.trb.org/View/1229829 Thu, 03 Jan 2013 13:49:20 GMT https://rip.trb.org/View/1229829