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/ TRACK LOADING FUNDAMENTALS--2 DETERMINATION OF RAIL SECTION https://trid.trb.org/View/6492 Sun, 04 Dec 1994 00:00:00 GMT https://trid.trb.org/View/6492 ALUMINUM CENTER WHEELS FOR RAPID TRANSIT RAIL SERVICE https://trid.trb.org/View/31445 Thu, 02 Jul 1981 00:00:00 GMT https://trid.trb.org/View/31445 TURNING RAILWAY WHEEL AND TIRE TREADS BY OPTICAL MEASUREMENTS https://trid.trb.org/View/11532 Fri, 05 Jan 1973 00:00:00 GMT https://trid.trb.org/View/11532