Transport Research International Documentation (TRID) https://trid.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) Transport Research International Documentation (TRID) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ SERVICE LIFE OF BUTTON SIGN COPY https://trid.trb.org/View/50559 Mon, 13 Oct 2003 00:00:00 GMT https://trid.trb.org/View/50559 OPTIMIZATION OF POST DELINEATOR HEIGHT AND SPACING. FINAL REPORT https://trid.trb.org/View/274532 Tue, 31 Mar 1987 00:00:00 GMT https://trid.trb.org/View/274532 CONSPICUITY OF MILITARY ROUTE INDICATORS AT NIGHT https://trid.trb.org/View/183146 Mon, 31 Jan 1983 00:00:00 GMT https://trid.trb.org/View/183146 USING ENCAPSULATED-LENS REFLECTIVE SHEETING ON OVERHEAD HIGHWAY SIGNS https://trid.trb.org/View/60579 Mon, 30 Jan 1978 00:00:00 GMT https://trid.trb.org/View/60579