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/ High-output strategy speeds track renewals https://trid.trb.org/View/1251104 Tue, 28 May 2013 09:36:37 GMT https://trid.trb.org/View/1251104 High-Output Track Maintenance Systems Respond to Performance Challenges https://trid.trb.org/View/767104 Tue, 27 Dec 2005 09:02:11 GMT https://trid.trb.org/View/767104 ECONOMIC ASPECTS OF TRACK MAINTENANCE https://trid.trb.org/View/278689 Sat, 28 Aug 2004 04:50:59 GMT https://trid.trb.org/View/278689 HANDBOOK FOR INSURING TRAIN TRAFFIC SAFETY DURING TRACK WORK https://trid.trb.org/View/31872 Mon, 01 Dec 2003 00:00:00 GMT https://trid.trb.org/View/31872 RAILROADS DEMAND SIMPLICITY IN PORTABLE TOOLS https://trid.trb.org/View/542047 Wed, 09 Dec 1998 00:00:00 GMT https://trid.trb.org/View/542047 NOISE AND VIBRATION ABSORBERS FOR TRANSIT VEHICLES AND TRACK https://trid.trb.org/View/485920 Wed, 20 May 1998 00:00:00 GMT https://trid.trb.org/View/485920 NEW CONCEPTS FOR TRACK MAINTENANCE https://trid.trb.org/View/468107 Thu, 07 Nov 1996 00:00:00 GMT https://trid.trb.org/View/468107 ARE TRACK MACHINES TOO SOPHISTICATED? https://trid.trb.org/View/457484 Tue, 27 Feb 1996 00:00:00 GMT https://trid.trb.org/View/457484 THE VM 150 JUMBO VACUUM SCRAPER-EXCAVATOR TECHNOLOGY https://trid.trb.org/View/425852 Mon, 19 Jun 1995 00:00:00 GMT https://trid.trb.org/View/425852 RAIL CURVE CALCULATOR https://trid.trb.org/View/6847 Sun, 04 Dec 1994 00:00:00 GMT https://trid.trb.org/View/6847 CLEARANCE OF SNOW AND ICE https://trid.trb.org/View/11385 Sun, 04 Dec 1994 00:00:00 GMT https://trid.trb.org/View/11385 LONG-WELDED CONDUCTOR RAILS ON THE SOUTHERN REGION https://trid.trb.org/View/11474 Sun, 04 Dec 1994 00:00:00 GMT https://trid.trb.org/View/11474 INSPECTION CARS AND GANG TROLLIES https://trid.trb.org/View/6916 Sun, 04 Dec 1994 00:00:00 GMT https://trid.trb.org/View/6916 BALLAST TAMPING https://trid.trb.org/View/11229 Sun, 04 Dec 1994 00:00:00 GMT https://trid.trb.org/View/11229 BALLAST CLEANING WITH SINGLE-TRACK OCCUPATION https://trid.trb.org/View/11308 Sun, 04 Dec 1994 00:00:00 GMT https://trid.trb.org/View/11308