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/ Safety of Two-Wheeled Scooters https://rip.trb.org/View/1887433 Fri, 22 Oct 2021 18:34:57 GMT https://rip.trb.org/View/1887433 Moped and Motor Scooter (50 cc or less) Safety: Issues and Countermeasures https://rip.trb.org/View/1716999 Tue, 30 Jun 2020 11:06:30 GMT https://rip.trb.org/View/1716999 Transferability & Forecasting of the Pedestrian Index Environment (PIE) for Modeling Applications https://rip.trb.org/View/1420159 Tue, 16 Aug 2016 16:34:15 GMT https://rip.trb.org/View/1420159