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/ SAFETY DEVICES FOR TRACK LAID ON CONCRETE OR STEEL SLEEPERS. THE ELECTRICAL RESISTANCE OF TRACK CIRCUITS ON TRACKS WITH WOODEN, CONCRETE AND STEEL SLEEPERS AS WELL AS WAYS AND MEANS OF IMPROVING THE INSULATION https://trid.trb.org/View/14934 Fri, 08 Jul 1994 00:00:00 GMT https://trid.trb.org/View/14934 SAFETY DEVICES FOR TRACK LAID ON CONCRETE OR STEEL SLEEPERS. ELECTRICAL PROPERTIES OF A TRACK LAID ON WOODEN SLEEPERS AND PRACTICAL DETERMINATION OF ITS ESSENTIAL CHARACTERISTIC DATA https://trid.trb.org/View/15057 Fri, 08 Jul 1994 00:00:00 GMT https://trid.trb.org/View/15057 SAFETY DEVICES FOR TRACK LAID ON CONCRETE ON STEEL SLEEPERS. THE ELECTRICAL INSULATION OF RAILS ON CONCRETE SLEEPERS https://trid.trb.org/View/15058 Fri, 08 Jul 1994 00:00:00 GMT https://trid.trb.org/View/15058 SAFETY DEVICES FOR TRACK LAID ON CONCRETE OR STEEL SLEEPERS. SUMMARY OF THE STUDIES OF THE COMMITTEE https://trid.trb.org/View/15059 Fri, 08 Jul 1994 00:00:00 GMT https://trid.trb.org/View/15059