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/ RIVER AND HARBOR AID TO NAVIGATION SYSTEM (RIHANS), PHASE 1-R, SYSTEM DEFINITION. VOLUME 1. SYSTEM AND EQUIPMENT DESCRIPTION https://trid.trb.org/View/15801 Wed, 07 May 2003 00:00:00 GMT https://trid.trb.org/View/15801 RIVER AND HARBOR AID TO NAVIGATION SYSTEM (RIHANS) PHASE 1-T: SYSTEM DEFINITION https://trid.trb.org/View/15802 Sun, 07 May 1978 00:00:00 GMT https://trid.trb.org/View/15802 SHIP-SHORE COMMUNICATION AT SHORT RANGES https://trid.trb.org/View/72379 Wed, 26 Apr 1978 00:00:00 GMT https://trid.trb.org/View/72379 SHORT RANGE PRECISION NAVIGATION AND TRACKING SYSTEM https://trid.trb.org/View/68551 Wed, 26 Apr 1978 00:00:00 GMT https://trid.trb.org/View/68551 A SHORT-RANGE PRECISE NAVIGATION SYSTEM https://trid.trb.org/View/401 Sat, 25 Nov 1972 00:00:00 GMT https://trid.trb.org/View/401