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/ ADAPTATION OF MARSHALLING YARDS FOR TAKING WAGONS WITH WHEELBASE OF MORE THAN 14 M. PRELIMINARY STUDY OF EXISTING AUTOMATIC MARSHALLING YARD https://trid.trb.org/View/15517 Wed, 19 Dec 1979 00:00:00 GMT https://trid.trb.org/View/15517 PENN CENTRAL AUTOMATES BUCKEYE CLASS YARD https://trid.trb.org/View/11802 Sun, 23 Mar 1975 00:00:00 GMT https://trid.trb.org/View/11802 CLASSIFICATION YARD UPGRADED WITH NEW MASTER RETARDER https://trid.trb.org/View/11806 Sun, 09 Mar 1975 00:00:00 GMT https://trid.trb.org/View/11806 NEW COMPRESSORS GIVE N&W YARD PLENTY OF AIR FOR RETARDERS https://trid.trb.org/View/11852 Sat, 23 Mar 1974 00:00:00 GMT https://trid.trb.org/View/11852