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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>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <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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      <link>https://trid.trb.org/</link>
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    <item>
      <title>PLOTTERS TO FIT ENGINEERING NEEDS</title>
      <link>https://trid.trb.org/View/512635</link>
      <description><![CDATA[New technology is playing a vital role in the equipment civil engineers use, whether they are involved with transportation, communications, water purification, or urban planning.  Powerful computer systems have enabled modeling and rendering that speed up design and approval cycles, and plotting technology from today's top vendors allows them to put it all on paper. Information on 19 different plotters offered by six companies is presented in tabular format.  Details include contact information for each company, model name, regular retail price, type (inkjet, thermal, or light-emitting diode), plot sizes, resolution, whether the plotter is color or mono, and selected features.]]></description>
      <pubDate>Wed, 15 Dec 1999 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/512635</guid>
    </item>
    <item>
      <title>COLLISIONS INVOLVING NAVAL VESSELS, 1 JANUARY 1976 THROUGH 27 MARCH 1980</title>
      <link>https://trid.trb.org/View/399419</link>
      <description><![CDATA[The U.S. Naval Safety Center maintains a database of material and property damage reports. This document is a printout of selected records from that database, detailing collisions that involved naval vessels and that occurred between 1 January 1976 and 27 March 1980.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/399419</guid>
    </item>
    <item>
      <title>ENVIRONMENTAL DATA BANK (EDB). VOLUME III. AIRPORT ENVIRONMENTAL DATA MANUAL</title>
      <link>https://trid.trb.org/View/89283</link>
      <description><![CDATA[The Environmental Data Bank (EDB) represents an effort to compile a comprehensive listing of environmentally-oriented data within one convenient source. The data include airport-specific information regarding the existence of such things as land acquisition programs or other such noise control actions in effect at each of the U.S. airports listed as of March 1979. Volume III presents site-specific information for each airport included in the data base. In addition to the computer readout provided for each airport, the following are included: (1) Diagram of the runway configuration of the airport; (2) Noise sensitive areas located within either a 5 or a 10-mile radius of the airport; and (3) A section giving basic airport statistics.]]></description>
      <pubDate>Fri, 17 Oct 1980 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/89283</guid>
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    <item>
      <title>EVENT RECORDER AS A TURNING MOVEMENT INDICATOR</title>
      <link>https://trid.trb.org/View/84439</link>
      <description><![CDATA[This report describes the conversion of a Transportation Data Corporation Traffic Speed Recorder to an Intersection Vehicle Turning Movement Recorder.  It is particularly valuable for recording turning movements at an intersection as well as vehicle type and headway classifications.  It contains four channels and separate control panels, each of which serves a different direction of traffic.  Thus, four operators can service a high density intersection.  The computer decodes the data from the cassette and classifies it quickly saving the several days of manual classification. The program written to analyze the data from the cassette can print out the intersection route numbers, accident node number, all turning movements, vehicle type and in-state or out-of-state information.  Time of event to 1 msec. is also recorded.  The program can provide printouts of daily summaries of all events in a few minutes.  If headway studies are desired, the program can provide a complete car by car printout of all data required.  Time required to dump the cassette to disc is approximately two minutes; summary printouts in a few minutes, and car by car printouts in 30 minutes to one hour depending of traffic density.  Technical details of the recorder, recording vehicle, recording process, and printout are included.]]></description>
      <pubDate>Sat, 29 Sep 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/84439</guid>
    </item>
    <item>
      <title>THE GENERATION, RADIATION AND PREDICTION OF SUPERSONIC JET NOISE. VOLUME II. APPENDIX. COMPUTER PROGRAM LISTING</title>
      <link>https://trid.trb.org/View/83161</link>
      <description><![CDATA[This appendix volume presents a complete listing of the unified jet noise prediction computer program (UNIJET), developed to predict the total noise from a subsonic or supersonic jet under static conditions. In addition, a listing of the computer program (called INTEG) to predict absolute turbulent mixing noise levels at 90 deg to the jet axis, using laser velocimeter turbulence measurement, is also given. A detailed description of these two programs in the form of a user's guide is given in the main volume of this report. (Author)]]></description>
      <pubDate>Tue, 31 Jul 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/83161</guid>
    </item>
    <item>
      <title>ANALYSIS OF SELECTED GENERAL AVIATION STALL/SPIN ACCIDENTS</title>
      <link>https://trid.trb.org/View/56372</link>
      <description><![CDATA[An automated data search of existing general aviation data bases was employed in an effort to relate aircraft stall/spin accident history to general design characteristics. The technique employed utilized a chi-square analysis to evaluate a 9-year stall/spin history of 36 selected aircraft. The statistical analysis indicated that: accident rates are influenced by aircraft usage; accident rates are influenced by pilot experience; low-horsepower low-stallspeed aircraft have a higher propensity to stall/spin accidents; the highest incidence of stall/spin accidents was in the takeoff phase of flight; and with the exception of one aircraft type, the chi-square analysis did not identify specific aircraft designs or design categorizations which would have a higher propensity for stall/spin accidents, with all other factors (i.e., pilot experience, aircraft usage) constant.]]></description>
      <pubDate>Wed, 20 Sep 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/56372</guid>
    </item>
    <item>
      <title>TRASTER 77: MATRA ANALYTICAL STEREOPLOTTER</title>
      <link>https://trid.trb.org/View/60754</link>
      <description><![CDATA[A fundamental feature of Traster 77, an analytical stereoplotter manufactured by Matra Optics, is the system for viewing stereomodels by optical projection in polarized light on a screen.  This arrangement permits complete operator head freedom and eliminates visual fatigue caused by the difference in accommodation between infinity of binocular systems and the finite observation distance on the drawing table, or any other document.  A thorough man/machine interface survey, combined with research of forms, has resulted in the very unique Traster 77 configuration for an analytical stereoplotter.  The Traster 77 gives the operator working comfort which he has never experienced on any existing instrument.  It is pleasing and modern in appearance and the human engineering design has resulted in a most natural and rational arrangement of controls.  Traster 77 benefits from all advantages of analytic instruments: ease and speed in orienting the stereomodel, operating reliability due to computer interface with the operator, and increased accuracy of results. Traster 77 may be used for graphical plotting, digital readout and storage, and aero triangulation.  A built-in oporthophotos at 1:1 magnification with compensation of transverse slopes based on a numerical terrain model. /Author/]]></description>
      <pubDate>Thu, 16 Feb 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/60754</guid>
    </item>
    <item>
      <title>THE FIRST DIGITAL AUTOMOTIVE DIAGNOSTIC SYSTEM--AUTOSENSE</title>
      <link>https://trid.trb.org/View/62975</link>
      <description><![CDATA[The Autosense Computerized Digital Diagnostic System is designed to assist mechanics, at all skill levels, test and diagnose today's newest vehicles.  The System can run individual tests, and thus be used by the mechanics as a tool, or automatically step the mechanic through a sequence of tests to diagnose a specific vehicle problem, totally check a vehicle or its individual systems.  The System compares actual vehicle performance to manufacturer's vehicle specifications and provides the mechanic with recommended repairs.  The system also provides the mechanic and the customer with a hard-copy print-out of all tests performed, the actual vehicle specifications and all recommended repairs.  This paper describes the Autosense Computerized Digital Diagnostic System.  /GMRL/]]></description>
      <pubDate>Tue, 31 May 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/62975</guid>
    </item>
    <item>
      <title>FEASIBILITY OF FLAW DETECTION IN RAILROAD WHEELS USING ACOUSTIC SIGNATURES</title>
      <link>https://trid.trb.org/View/47701</link>
      <description><![CDATA[The feasibility study on the use of acoustic signatures for detection of flaws in railway wheels was conducted with the ultimate objective of development of an intrack device for moving cars. Determinations of the natural modes of vibrating wheels under various conditions are reported. Differences in acoustic signatures are found between good and cracked wheels, including spectral changes and variations in the time decay of sound. Various sounds occurring in normal railroad practice, such as rolling noise on welded rail and over joints and retarder screech were investigated. It was concluded that special purpose impacters will have to be used for a servicable device. Pattern recognition techniques were used for selecting good and bad wheels with a computerized processing scheme. A laboratory demonstration system has been constructed and found to be 85% reliable when system malfunctions are discounted.]]></description>
      <pubDate>Wed, 13 Apr 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/47701</guid>
    </item>
    <item>
      <title>ACCIDENT RECORDING AND INVESTIGATION IN A HIGHWAY AUTHORITY (CUMBERLAND COUNTY COUNCIL)</title>
      <link>https://trid.trb.org/View/24677</link>
      <description><![CDATA[THE AUTHOR DESCRIBES THE SYSTEM OF ACCIDENT RECORDING THAT IS BEING USED IN CUMBERLAND. THIS WAS DESIGNED TO HANDLE THE LARGE NUMBER OF DATA THAT NEED TO BE COLLECTED AND TO BE COMPATIBLE WITH THE OTHER FOUR COUNTIES AND COUNTY BOROUGHS IN THE AUTHORITY OF CUMBRIA. MOST OF THE DATA ARE PROVIDED BY THE POLICE, WHO SUPPLY THEM ON BASIC FORMS WHICH CAN BE USED WITH THE COMPUTER WITH A MINIMUM OF ADDITIONAL CODING. ALTHOUGH MOST OF THE RESULTS ARE HANDLED BY THE COMPUTER, THE SITE OF EACH ACCIDENT IS RECORDED BY HAND ON A 1/2-IN. MAP. DETAILS ARE GIVEN OF THE PRINT-OUTS THAT CAN BE OBTAINED; IT IS STATED THAT THE BEST SYSTEM IS ONE GIVING REGULAR PRINT-OUTS OF A MORE GENERAL NATURE SUPPORTED BY MORE DETAILED ANALYSES OF PARTICULAR PROBLEMS. BLACK-SPOT ANALYSIS, DOE'S MERIT RATING AND STREET LIGHTING ARE BRIEFLY DISCUSSED. THIS IS TOGETHER WITH THE PROBLEMS OF ACCIDENT INVESTIGATION, AND FACTORS SUCH AS TYPE OF VEHICLE, ROAD SIGNS AND DRIVER BEHAVIOUR. RELATED INFORMATION SUCH AS TRAFFIC FLOW, CONDITION OF THE ROAD , THE COST OF WORK AND THE PROPOSED PROGRAMME OF WORKS ARE ALSO EXAMINED. THE AUTHOR CONCLUDES BY DISCUSSING LONG TERM DEVELOPMENTS AND GIVING A LIST OF THE POINTS THAT NEED TO BE CONSIDERED WHEN ACCIDENT INVESTIGATION SYSTEM IS BEIN SET UP.]]></description>
      <pubDate>Fri, 08 Apr 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/24677</guid>
    </item>
    <item>
      <title>NON LINEAR CALCULATION OF SUPERCAVITATING HYDROFOILS NEAR A FREE SURFACE</title>
      <link>https://trid.trb.org/View/47592</link>
      <description><![CDATA[This report summarizes briefly the research carried out under the Contracts N00014-67-A-0031 and N00014-75-C-0430 on the calculation of supercavitating hydrofoils near a free surface. This work appears in six previous publications. The present report concludes this series of publications with a users list of instructions for the calculation of supercavitating hydrofoils of finite aspect ratio near gravity-free surface. (Author)]]></description>
      <pubDate>Wed, 30 Mar 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/47592</guid>
    </item>
    <item>
      <title>AIRCRAFT CONFIGURATION NOISE REDUCTION. VOLUME III. COMPUTER PROGRAM SOURCE LISTING</title>
      <link>https://trid.trb.org/View/63355</link>
      <description><![CDATA[This report is volume 3 of the series and was jointly prepared by the Noise Technology Staff of the Boeing Commercial Airplane Company and the Noise Systems Group of Boeing Computer Services, Inc. This volume contains the source code listing of the computer programs for evaluating Aircraft Configuration Noise Reduction as defined in the engineering document, volume 1. The User's Guide for the programs is contained in appendix A of Volume 2. The material presented herein is reference data for use in conjunction with the material presented in volumes 1 and 2.]]></description>
      <pubDate>Sun, 16 Jan 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/63355</guid>
    </item>
    <item>
      <title>COMPUTER SURVEY OF PASSING ZONES PUTS PRECISION IN 1500-MILES STRIPING JOB</title>
      <link>https://trid.trb.org/View/45392</link>
      <description><![CDATA[The use is described of computer technology coupled with peripheral instruments to provide accurate determinations of passing/no passing zones.  The computer is programmed to construct a 2-dimension profile analysis of the various curves along the entire length of an established line of sight distance equivalent to the 85th percentile of design speed.  As the vehicle travels the highway, the system computes the various equations for placement of zones in real time and provides computer printout permanent records of all zone locations.  Computer no passing zone information is transmitted directly to a zone code paint vehicle, where the information is automatically processed by a paint control systems for highway placement of Mini-Code Patterns.  The processing of taped information to provide straight line maps and a composite graphic presentation of the highway is described.]]></description>
      <pubDate>Wed, 23 Jun 1976 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/45392</guid>
    </item>
    <item>
      <title>AUTOMATED CONSTRUCTION PROGRESS REPORT AND PAYMENT SYSTEM</title>
      <link>https://trid.trb.org/View/36618</link>
      <description><![CDATA[The Automated Construction Payment System, which is initiated after the award of a contract, was designed to expediate payment for work accomplished in the field by the contractor. The Automated Progress Report which was designed to report construction progress utilizes data from the bar chart, distribution of contract time, and the District Engineers project payment estimate, to report detailed progress data for each project and each controlling operation within a project as part of the estimate printout. In addition, a monthly computer report summarizes the data for all projects in a form convenient for management's use in monitoring the overall progress of the projects and flagging those projects behind schedule. Figures are included which illustrate an example of the printout sheet that will be included with each current estimate printout for each project, and an example of a sheet from a monthly printout of the Status of Construction Contract Projects which is distributed to all districts.]]></description>
      <pubDate>Fri, 14 May 1976 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/36618</guid>
    </item>
    <item>
      <title>FURTHER STUDIES OF METHODS FOR REDUCING COMMUNITY NOISE AROUND AIRPORTS</title>
      <link>https://trid.trb.org/View/30462</link>
      <description><![CDATA[A simplified method of analysis was used in which all flights at a "simulated" airport were assumed to operate from one runway in a single direction. For this simulated airport, contours of noise exposure forecast were obtained and evaluated. A flight schedule of the simulated airport which is representative of the 23 major U. S. airports was used. The effect of banning night-time operations by four-engine, narrow-body aircraft in combination with other noise reduction options was studied. The reductions in noise which would occur of two- and three-engine, narrow-body aircraft equipped with a refanned engine was examined. A detailed comparison of the effects of engine cutback on takeoff versus the effects of retrofitting quiet nacelles for narrow-body aircraft was also examined. A method of presenting the effects of various noise reduction options was treated. (Author)]]></description>
      <pubDate>Wed, 04 Feb 1976 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/30462</guid>
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