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/ ASDE-2 RELIABILITY IMPROVEMENT STUDY. VOLUME II: MODULATOR, RECEIVER AND INDICATOR INTERFACE RECOMMENDATIONS https://trid.trb.org/View/23729 Thu, 29 May 2003 00:00:00 GMT https://trid.trb.org/View/23729 QM/PSK VOICE/DATA MODEM https://trid.trb.org/View/41513 Sat, 13 Jul 2002 00:00:00 GMT https://trid.trb.org/View/41513 WAVELENGTH SENSOR FOR FIBER OPTIC GYROSCOPE; PATENT FILED 28 MAY 91, PATENTED 15 NOV 94 https://trid.trb.org/View/448450 Mon, 11 Dec 1995 00:00:00 GMT https://trid.trb.org/View/448450 WAVELENGTH SENSOR FOR FIBER OPTIC GYROSCOPE; PATENT FILED 28 MAY 91, PATENTED 15 NOV 94 https://trid.trb.org/View/447747 Mon, 16 Oct 1995 00:00:00 GMT https://trid.trb.org/View/447747 PSK SUBCARRIER DEMODULATORS FOR DATA ACQUISITION https://trid.trb.org/View/114893 Mon, 12 Sep 1994 00:00:00 GMT https://trid.trb.org/View/114893 THE APPLICABILITY OF A MOTORCYCLE HEADLAMP MODULATOR AS A DEVICE FOR ENHANCING DAYTIME CONSPICUITY https://trid.trb.org/View/272166 Sun, 30 Sep 1990 00:00:00 GMT https://trid.trb.org/View/272166 EMISSION CONTROLS. PART V: GM VACUUM SPARK CONTROL DEVICES https://trid.trb.org/View/209276 Tue, 30 Oct 1984 00:00:00 GMT https://trid.trb.org/View/209276 MANUFACTURER MAKES GRADE CROSSINGS SMOOTHER WITH EXTENDED LIFE SPAN https://trid.trb.org/View/167753 Thu, 09 Jul 1981 00:00:00 GMT https://trid.trb.org/View/167753 RAIL GAGE APPARATUS https://trid.trb.org/View/14259 Thu, 25 Mar 1976 00:00:00 GMT https://trid.trb.org/View/14259