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/ Evaluation of Particle Shape on Direct Shear Mechanical Behavior of Ballast Assembly Using Discrete Element Method (DEM) https://trid.trb.org/View/1693306 Wed, 08 Apr 2020 08:52:32 GMT https://trid.trb.org/View/1693306 ANALYSIS OF CROSSTIE TRACK IN LATERAL PLANE USING NEW TRACK EQUATIONS https://trid.trb.org/View/483445 Mon, 02 Jun 1997 00:00:00 GMT https://trid.trb.org/View/483445 THE STATE OF THE ART IN MAINTENANCE: BETTER BALLAST DISTRIBUTION https://trid.trb.org/View/482777 Thu, 08 May 1997 00:00:00 GMT https://trid.trb.org/View/482777 METHOD OF MIXED TIME AND FREQUENCY DOMAINS FOR DISCRETELY SUPPORTED RAILS TO TRANSIENT LOADS https://trid.trb.org/View/467878 Wed, 04 Dec 1996 00:00:00 GMT https://trid.trb.org/View/467878 WHY A SUB-BALLAST? https://trid.trb.org/View/271450 Thu, 31 Jul 1986 00:00:00 GMT https://trid.trb.org/View/271450 HIGHER STANDARDS FOR TRACK BALLAST https://trid.trb.org/View/218389 Mon, 30 Sep 1985 00:00:00 GMT https://trid.trb.org/View/218389 PERMANENT DEFORMATIONS DUE TO THE SETTLEMENT OF BALLASTED TRACK https://trid.trb.org/View/217693 Mon, 30 Sep 1985 00:00:00 GMT https://trid.trb.org/View/217693 DYNAMIC ANALYSIS OF RAILROAD EMBANKMENTS https://trid.trb.org/View/211178 Mon, 29 Apr 1985 00:00:00 GMT https://trid.trb.org/View/211178 TREAT THEM RIGHT AND CONCRETE SLEEPERS WILL LAST HALF-A-CENTURY https://trid.trb.org/View/209593 Tue, 30 Oct 1984 00:00:00 GMT https://trid.trb.org/View/209593 TRACK SUPPORT MUST BE RIGHT IF CONCRETE SLEEPERS ARE TO SURVIVE https://trid.trb.org/View/209592 Tue, 30 Oct 1984 00:00:00 GMT https://trid.trb.org/View/209592 THEORETICAL RESEARCH IN THE FIELD OF ASSYMMETRICALLY SUPPORTED CONCRETE SLEEPERS https://trid.trb.org/View/204155 Thu, 30 Aug 1984 00:00:00 GMT https://trid.trb.org/View/204155 THE ROCKY ROAD TO GOOD TRACK https://trid.trb.org/View/203703 Thu, 28 Jun 1984 00:00:00 GMT https://trid.trb.org/View/203703 EXPERIMENTAL STUDY ON LATERAL RESISTANCE OF TRACK SKELETON IN BALLAST https://trid.trb.org/View/201923 Wed, 29 Feb 1984 00:00:00 GMT https://trid.trb.org/View/201923 THREE-DIMENSIONAL TESTING AND MODELING OF BALLAST https://trid.trb.org/View/196667 Fri, 30 Dec 1983 00:00:00 GMT https://trid.trb.org/View/196667 LABORATORY INVESTIGATION OF LATERAL TRACK SHIFT https://trid.trb.org/View/162129 Thu, 19 Nov 1981 00:00:00 GMT https://trid.trb.org/View/162129