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/ Crash Analysis at Intersections with Transit Signal Priority https://rip.trb.org/View/2643022 Thu, 18 Dec 2025 14:02:39 GMT https://rip.trb.org/View/2643022 Investigation of Vulnerable Road User Fatalities and Serious Injuries on Freeways https://rip.trb.org/View/2601433 Thu, 18 Sep 2025 00:57:24 GMT https://rip.trb.org/View/2601433 Field Trauma Triage Guidelines Demonstration Project https://rip.trb.org/View/2444690 Mon, 21 Oct 2024 15:29:52 GMT https://rip.trb.org/View/2444690 SafeSpeed: Enhancing Work Zone Safety through Speed Enforcement https://rip.trb.org/View/2440014 Sat, 12 Oct 2024 12:18:07 GMT https://rip.trb.org/View/2440014 Smart AI-Technology Employment for Crash Data Analysis https://rip.trb.org/View/2431593 Tue, 17 Sep 2024 17:38:29 GMT https://rip.trb.org/View/2431593 Investigating safety and risk disparity between personally owned and shared micromobility modes https://rip.trb.org/View/2401752 Mon, 08 Jul 2024 14:54:16 GMT https://rip.trb.org/View/2401752 The Role of Built Environment Factors in Enhancing Pedestrian and Bicycle Safety: A Comprehensive Analysis and Policy Implications https://rip.trb.org/View/2401750 Mon, 08 Jul 2024 14:54:15 GMT https://rip.trb.org/View/2401750 An Analysis of Pedestrian Safety and Injury Severity at Bus Stops Using the CRSS Database https://rip.trb.org/View/2401749 Mon, 08 Jul 2024 14:54:14 GMT https://rip.trb.org/View/2401749 Examine Crash Responsibility of Alcohol- and Drug-Positive Drivers https://rip.trb.org/View/2377869 Tue, 07 May 2024 08:03:20 GMT https://rip.trb.org/View/2377869 Investigate the Impact of Rumble Strips on Motorcyclists https://rip.trb.org/View/2342050 Tue, 20 Feb 2024 12:07:32 GMT https://rip.trb.org/View/2342050 Unlocking Forensics Data for Vehicles Involved in Motor Vehicle Crashes https://rip.trb.org/View/2321643 Fri, 12 Jan 2024 11:07:42 GMT https://rip.trb.org/View/2321643 Analysis of Lane Departure Crashes Leveraging Advanced Driver Assistive Systems (ADAS) Machine Vision Sensing Data PROBLEM https://rip.trb.org/View/2310056 Thu, 14 Dec 2023 13:52:18 GMT https://rip.trb.org/View/2310056 Breaking Down Commercial Motor Vehicle Crashes: What are the Main Causes? https://rip.trb.org/View/2298714 Wed, 29 Nov 2023 14:30:24 GMT https://rip.trb.org/View/2298714 Urban Demographic Shift of Pedestrian and Bicyclist Collisions, Equity, and Police Enforcement https://rip.trb.org/View/2232673 Wed, 23 Aug 2023 20:51:48 GMT https://rip.trb.org/View/2232673 Safety Evaluation of Turning Maneuvers at California Intersections https://rip.trb.org/View/2232677 Wed, 23 Aug 2023 20:44:45 GMT https://rip.trb.org/View/2232677