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/ Merging Implementation Criteria https://rip.trb.org/View/2344446 Thu, 22 Feb 2024 17:56:59 GMT https://rip.trb.org/View/2344446 Driving Simulator Study of Merge Signs https://rip.trb.org/View/1372824 Tue, 27 Oct 2015 11:29:01 GMT https://rip.trb.org/View/1372824