Transport Research International Documentation (TRID) https://trid.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) Transport Research International Documentation (TRID) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ DEVELOPMENT OF PACKING HMP FOR TRACK LEVELLING https://trid.trb.org/View/58922 Thu, 13 Oct 1977 00:00:00 GMT https://trid.trb.org/View/58922 RAIL SLIPPAGE TESTS-CONCRETE TIES https://trid.trb.org/View/18764 Thu, 15 Jul 1976 00:00:00 GMT https://trid.trb.org/View/18764 WELDED RAIL ON BRIDGES https://trid.trb.org/View/24984 Wed, 11 Feb 1976 00:00:00 GMT https://trid.trb.org/View/24984