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    <title>Transport Research International Documentation (TRID)</title>
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Transport Research International Documentation (TRID)</title>
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      <title>FEASIBILITY STUDY UTILIZING METEOR BURST COMMUNICATIONS FOR VESSEL MONITORING</title>
      <link>https://trid.trb.org/View/171704</link>
      <description><![CDATA[This document discusses the feasibility of using meteor burst communications for monitoring vessel position, in particular the Prince William Sound VMS near Valdez, Alaska. This document describes the equipment and operational performance of meteor burst in the telemetry of vessel position data. (Author)]]></description>
      <pubDate>Sun, 30 Mar 2003 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/171704</guid>
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      <title>MLS PERFORMANCE ASSESSMENT, TASK IV. VOLUME I. EVALUATION PROCEDURES AND EQUIPMENT DESIGN</title>
      <link>https://trid.trb.org/View/171399</link>
      <description><![CDATA[Preliminary flight-check procedures and system tolerances for the Microwave Landing System (MLS) are presented. A data-collection and recording package for use in light-aircraft measurement of MLS parameters in support of the System Test and Evaluation Program (STEP) is included containing a ground reference system, digital telemetry link airborne MLS sensor unit and system computation/display element. (Author)]]></description>
      <pubDate>Wed, 29 Jan 2003 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/171399</guid>
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      <title>MLS PERFORMANCE ASSESSMENT. TASK IV. VOLUME 2. LITERATURE SEARCH ABSTRACTS</title>
      <link>https://trid.trb.org/View/171498</link>
      <description><![CDATA[A collection of available Microwave Landing System (MLS) literature is presented, as a result of searches conducted by computer through files of the National Technical Information Service, (NTIS), the Engineering Index (TM), and the INSPEC database, produced by IEE. (Author)]]></description>
      <pubDate>Wed, 29 Jan 2003 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/171498</guid>
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      <title>FEASIBILITY STUDY FOR AN ADVANCED LIGHTED AID TO NAVIGATION</title>
      <link>https://trid.trb.org/View/171506</link>
      <description><![CDATA[This report discusses a Coast Guard advanced aid to navigation network. Various light sources, positioning systems, and radio links are investigated for suitability to solar powered marine aids. A modular microprocessor-based aid, capable of self diagnostic monitoring and differential LORAN-C positioning, is described. A communication system between the aids and shore stations, using conventional or meteor burst VHF or a GOES satellite link, is examined, showing the first and last options to be most viable. Inter-aid flash synchronization schemes, and data transmission formats, polling methods, and system performance analysis are discussed. Having established the technical feasibility of the advanced aid concept, cost and reliability estimates are performed on the proposed systems. Finally, recommendations on areas requiring further study are presented. (Author)]]></description>
      <pubDate>Wed, 29 Jan 2003 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/171506</guid>
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    <item>
      <title>THE DISTRESS ALERTING AND LOCATING SYSTEM (DALS). SUMMARY OF DEVELOPMENT AND DOCUMENTATION</title>
      <link>https://trid.trb.org/View/56538</link>
      <description><![CDATA[This report documents the evolution of a Distress Alerting and Locating System (DALS) based on the retransmission of radio navigational aid signals. This equipment, developed from balloon tracking and meterological data gathering equipment manufactured by Beukers Laboratories, progressed through a test and development cycle culminating in a system that could: automatically alert search and rescue forces of a distress situation; identify the distressed vessel; automatically indicate the distress site location to within 1/2 mile; automatically plot the distressed vessel's location; track multiple vessels simultaneously; and operate at extended ranges by using aircraft-mounted telemetry equipment. Ancillary developments include a VHF-FM marine-band distress beacon whose radio signal includes identification information, a plasma-display-based SAR Command and Control Console, and techniques for narrow-band retransmission of the Omega navigation system signals over a telemetry link. Budgetary limitations and cost effectiveness studies resulted in termination of the DALS development prior to installation and testing of an operational system. (Author)]]></description>
      <pubDate>Tue, 29 Oct 2002 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/56538</guid>
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    <item>
      <title>CONCEPTS FOR DATA COLLECTION IN THE ARCTIC</title>
      <link>https://trid.trb.org/View/155768</link>
      <description><![CDATA[This report identifies, describes, analyzes, and evaluates new concepts for collecting and processing data and information gathered above, on, and under sea ice and contiguous land areas of the Arctic Basin, including manned and unmanned systems of varying sizes with both short-term and long-term operations. (Author)]]></description>
      <pubDate>Mon, 27 Oct 1980 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/155768</guid>
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    <item>
      <title>EVALUATION OF DEEPWATER PORTS MOORING LOAD MONITORING AND PREDICTION SYSTEMS</title>
      <link>https://trid.trb.org/View/77554</link>
      <description><![CDATA[This report describes a study of mooring load monitoring and prediction systems for deepwater ports. The study considers both the complete systems and the various components of each system. The primary purpose of the study is to define and critically compare all candidate monitoring and prediction systems that might be used at a U.S. deepwater port and to recommend what, if any, systems should be required at such ports. The study is primarily directed to oil import terminals using single point moorings of the Catenary Anchor Leg Mooring (CALM), Single Anchor Leg Mooring (SALM), and tower types, but alongside moorings and LNG ports are considered briefly. Factors such as hawser properties, which affect allowable mooring loads, are also considered.]]></description>
      <pubDate>Sat, 29 Dec 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/77554</guid>
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    <item>
      <title>RADIO REMOTE CONTROL SYSTEM FOR AIRPORT VISUAL NAVIGATIONAL AIDS</title>
      <link>https://trid.trb.org/View/63536</link>
      <description><![CDATA[This is an evaluation unit to prove the feasibility and reliability of radio remote control for airport visual NAVAIDS. Reliability includes radio link dependability, equipment dependability, and message security. The radio link is assured by directional antennas and large power margin; the equipment is designed to MIL Standards, and the message is triple encoded. The half duplex system is so formatted that only one station can transmit or receive at any one time. This combination insures that the messages will be successfully communicated without inter-station interference, in the noisy EMI environment of the airport, and through unfavorable conditions of terrain and weather. Modular construction permits growth to 10 remote stations with 12 discrete functions per station. (Author)]]></description>
      <pubDate>Wed, 16 Feb 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/63536</guid>
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    <item>
      <title>EVALUATION OF THE RUBINO PROCEDURE FOR RADIO TELEMETRIC THEODOLITE POSITIONING. (REVISED)</title>
      <link>https://trid.trb.org/View/23564</link>
      <description><![CDATA[This report presents the results of an evaluation of a procedure described in 'Working Paper on Radio Telemetric Theodolite (RTT) Positioning' by Joe Rubino, AEM-200, dated April 1973. An analysis and evaluation was conducted by gathering information about the present glide slope system, difficulties that had been encountered, and changes that had been implemented. The analysis performed indicates that all factors affecting the glidepath are separated by the Rubino RTT placement into path structure (indicated by the flight recording), and the threshold crossing height (which is incorporated into the RTT placement). This study evaluation concludes that because of this separation the Rubino procedure is better because it provides a better description of the glidepath in space.]]></description>
      <pubDate>Tue, 22 Apr 1975 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/23564</guid>
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