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/ SPR-4736: A Study of Suburban Arterial Safety Performance Based on Median Type https://rip.trb.org/View/2026876 Wed, 21 Sep 2022 14:27:46 GMT https://rip.trb.org/View/2026876 Zoysiagrass Expansion on Roadsides https://rip.trb.org/View/1765387 Tue, 26 Jan 2021 07:54:00 GMT https://rip.trb.org/View/1765387 Develop Enhanced Protection of Median Openings Between Parallel Bridge Structures https://rip.trb.org/View/1641429 Tue, 30 Jul 2019 15:04:12 GMT https://rip.trb.org/View/1641429 Selection, Installation, and Evaluation of Zoysiagrass https://rip.trb.org/View/1473824 Fri, 07 Jul 2017 10:47:28 GMT https://rip.trb.org/View/1473824 Reasonable Alternatives for Grade-Separated Intersection https://rip.trb.org/View/1472678 Fri, 30 Jun 2017 15:37:25 GMT https://rip.trb.org/View/1472678 First International Roadside Safety Conference and Peer Exchange https://rip.trb.org/View/1369882 Tue, 22 Sep 2015 09:00:05 GMT https://rip.trb.org/View/1369882 The Effects of Reduced Mowing in Medians on Storm Water Filtration and Invasive Species Management https://rip.trb.org/View/1268072 Sat, 09 Nov 2013 01:00:31 GMT https://rip.trb.org/View/1268072 Up in the Air: New Urban Designs for LRT Stations in Highway Medians https://rip.trb.org/View/1231963 Thu, 03 Jan 2013 14:29:22 GMT https://rip.trb.org/View/1231963