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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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      <title>A REVIEW OF THE PILOT'S USE AND APPLICATION OF ELECTRONIC DISPLAYS AND CONTROLS IN TERMINAL AREA OPERATIONS</title>
      <link>https://trid.trb.org/View/91642</link>
      <description><![CDATA[The following article discusses the problems of operation in the crowded terminal area with specific emphasis on the airborne aspects.  A flight research vehicle is introduced with which the new technology systems are tested.  The pilot displays are described, their use is explained, and the direction the program should take in the future is discussed. /Author/]]></description>
      <pubDate>Wed, 15 Aug 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/91642</guid>
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      <title>AIRPORT CAPACITY INCREASING POTENTIAL OF ANGLED RUNWAY EXIT DESIGNS</title>
      <link>https://trid.trb.org/View/85072</link>
      <description><![CDATA[This report presents the results of an investigation to determine the causes of low utilization of angled runway exits on air carrier airports, to identify feasible measures to increase their utilization and to assess the probable resultant increase in runway capacity.  The areas considered included aircraft runway occupancy time and travel time influence factors including taxiway networks, landing and deceleration procedures, cornering acceleration constraints, approach profiles and present and possible improvements in future supportive equipment such as glide slope and approach control.  No field data was collected.]]></description>
      <pubDate>Wed, 28 Mar 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/85072</guid>
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      <title>REQUIREMENTS FOR 3500 FOOT SPACINGS FOR SIMULTANEOUS PARALLEL IFR APPROACHES</title>
      <link>https://trid.trb.org/View/57775</link>
      <description><![CDATA[The report presents the requirements for lowering the current 4300 foot rule for simultaneous parallel IFR approaches. Of especial interest are changes to 3500 feet or lower. An analysis is made, based upon the assumed introduction of a very accurate, high update rate surveillance system for special purpose use for monitoring parallel approaches.]]></description>
      <pubDate>Mon, 30 Jan 1978 00:00:00 GMT</pubDate>
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      <title>PARALLEL RUNWAYS TO BEAT AIRPORT CONGESTION</title>
      <link>https://trid.trb.org/View/52602</link>
      <description><![CDATA[Parallel runways make it possible to increase the airport's capacity and reduce delays to a greater extent than divergent or intersecting runways.  The various possible configurations for parrallel runways are tabulated together with data relating to their respective capacity compared with those of intersecting or divergent runways.  A minimum spacing of 5,000 ft. between runways is essential.  This spacing makes possible simultaneous ILS approaches, thus giving the parallel runway system true double capacity.]]></description>
      <pubDate>Tue, 20 Sep 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/52602</guid>
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      <title>COMING-TANDEM RUNWAYS?</title>
      <link>https://trid.trb.org/View/52584</link>
      <description><![CDATA[Two runways on a common centerline--with plenty of spacing between--could up capacity of long, narrow airport sites.]]></description>
      <pubDate>Wed, 31 Aug 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/52584</guid>
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      <title>COMBINED LANDING AND TAKEOFF CAPACITY OF A SINGLE RUNWAY</title>
      <link>https://trid.trb.org/View/24606</link>
      <description><![CDATA[This study presents a theoretical analysis of the landing capacity and the combined landing and take-off capacity of a single runway. Interrelationships of the following factors are studied--the separation between pairs of landing aircraft; the runway occupancy time of landing aircraft; the distance of the gate at the start of the approach path from the end of the runway; the variation in approach speeds and take-off speeds and the distance between the second landing aircraft and the taking-off aircraft.]]></description>
      <pubDate>Thu, 05 Sep 1974 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/24606</guid>
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    <item>
      <title>REDUCTION OF PARALLEL RUNWAY REQUIREMENTS</title>
      <link>https://trid.trb.org/View/10219</link>
      <description><![CDATA[The report presents results and recommendations concerning the relaxation of spacing requirements for independent instrument flight rules parallel approaches into closely spaced runways. All results presented in the report are derived by analyzing what system design or performance changes are required (either airborne or ground based) so as to result in safety equal to the current system's, but at closer spacing. A set of system changes and improvements are specified which, based on analysis, will permit closer runway spacing. (Author)]]></description>
      <pubDate>Thu, 13 Dec 1973 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/10219</guid>
    </item>
    <item>
      <title>DESIGN AIRPORTS FOR A MAXIMUM CAPACITY</title>
      <link>https://trid.trb.org/View/103194</link>
      <description><![CDATA[A "SPIRALPORT" IS PROPOSED TO ENSURE MAXIMUM UTILIZATION OF AIRPORT CAPACITIES. THE SPIRALPORT IS LAID OUT SO THAT THERE WILL BE THREE FULL TIME, FULL USE RUNWAYS FOR LANDINGS, AND THREE FOR TAKEOFFS. THE RUNWAYS ARE SET TO CONVERGE IN ORDER THAT THE POINTS OF INTERSECTION OF THE FINAL APPROACH COURSES WILL BE MORE WIDELY SPACED. /IAA/]]></description>
      <pubDate>Sun, 05 Aug 1973 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/103194</guid>
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    <item>
      <title>PARALLEL RUNWAY SPACING</title>
      <link>https://trid.trb.org/View/103202</link>
      <description><![CDATA[IN CONNECTION WITH CONTINUOUSLY INCREASING AIR TRAFFIC, IT IS NECESSARY TO INCREASE THE CAPACITY OF THE AIRPORT BY INDEPENDENTLY OPERATED RUNWAYS. ASPECTS OF MINIMUM RUNWAY SPACING COMPATIBLE WITH PREVAILING SAFETY STANDARDS ARE INVESTIGATED. A SENSITIVITY ANALYSIS IS CONDUCTED IN ORDER TO OBTAIN INFORMATION ABOUT THE SYSTEM PARAMETERS THAT HAVE THE GREATEST INFLUENCE ON THE RUNWAY SPACING. THE MOST CRITICAL PARAMETER IS THE TOTAL COMMAND DELAY TIME. ANOTHER SIGNIFICANT PARAMETER IS THE BANK ANGLE. THE PENETRATION PROBABILITY, ON THE OTHER HAND, HAS LITTLE INFLUENCE ON THE INTERVENTION ZONE WIDTH. IT IS FOUND THAT AN INCREASE IN THE DATA ACQUISITION RATE IS MORE EFFECTIVE THAN ASPECTS OF ACCURACY. /IAA/]]></description>
      <pubDate>Sun, 05 Aug 1973 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/103202</guid>
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