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/ EXPERIMENTAL STUDY ON THIN FLEXIBLE TUNNEL SUPPORT SYSTEM https://trid.trb.org/View/271044 Fri, 27 Aug 2004 22:00:16 GMT https://trid.trb.org/View/271044 LATTICE GIRDERS OFFER ECONOMY AND PERFORMANCE FOR TUNNEL SUPPORT https://trid.trb.org/View/197054 Mon, 30 Jan 1984 00:00:00 GMT https://trid.trb.org/View/197054