Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2024. 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/ Developing Guidance for a Corridor Level Vehicle Occupancy Rate Data Collection Program https://rip.trb.org/View/1739082 Tue, 15 Sep 2020 08:53:12 GMT https://rip.trb.org/View/1739082 Performance Measures for Traffic Signal Systems https://rip.trb.org/View/1510100 Fri, 27 Apr 2018 16:07:27 GMT https://rip.trb.org/View/1510100 Evaluation of the Cost Effectiveness of Illumination as a Safety Treatment at Rural Intersections https://rip.trb.org/View/1474439 Fri, 14 Jul 2017 12:38:09 GMT https://rip.trb.org/View/1474439 Impacts of Connected Vehicles and Automated Vehicles on State and Local Transportation Agencies--Task-Order Support. Road Markings for Machine Vision https://rip.trb.org/View/1363394 Thu, 30 Jul 2015 01:00:49 GMT https://rip.trb.org/View/1363394 Understanding Time-of-Day Variation in Truck Transport and General Traffic Emissions: Guidance for Strategic Urban Air Quality Investments https://rip.trb.org/View/1332485 Tue, 25 Nov 2014 01:00:49 GMT https://rip.trb.org/View/1332485 Departure Time Choice Model in the Presence of Time-of-Day Toll Pricing https://rip.trb.org/View/1231919 Thu, 03 Jan 2013 14:28:36 GMT https://rip.trb.org/View/1231919