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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>REMEDIAL SQUEEZE SYSTEMS - 1 : REMEDIAL SQUEEZE SYSTEMS PROVIDE MEANS TO SEAL OFF TROUBLE ZONES</title>
      <link>https://trid.trb.org/View/475277</link>
      <description><![CDATA[Newly developed remedial squeeze systems successfully control lost circulation problems, seal off high-pressure water and gas zones, and stop underground blowouts. These conditions result in mud losses, wasted rig time, lost holes, sidetracks, abandoned wells, relief wells, and unrecoverable petroleum reserves. The new systems also increase the integrity and frac gradient of weak zones to safely allow deeper drilling. In early 1996, a service company initiated a project to review conventional remediation materials and methods with the intent to search for more effective remedies. The project led to the development of several lost-circulation material squeeze systems (LCM squeeze systems).]]></description>
      <pubDate>Thu, 31 Dec 1998 00:00:00 GMT</pubDate>
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      <title>PRESSURE CHANGE IN TUNNEL AND COMPLAINTS OF AURAL DISCOMFORT BY RAILWAY PASSENGERS</title>
      <link>https://trid.trb.org/View/576614</link>
      <description><![CDATA[Passengers feel aural discomfort due to pressure changes when trains pass a tunnel at high speeds.  In Japan, as limited express trains have been running at higher speeds in recent years, aural discomfort on unsealed rolling stock has become a serious problem for narrow gauge lines.  This paper discusses a guideline to the evaluation of aural discomfort due to pressure changes in passenger rooms and proposes a provisional measure for this purpose.  First, the features of pressure changes in rolling stock, sealing technique applied to Shinkansen trains and a series of tests on aural discomfort performed in Europe are briefly described.  Then follows an introduction of research on aural discomfort in Japan and a proposal of provisional guidelines to set the limit of pressure changes at 2.0kPa or less within any 4-second period in order to prevent aural discomfort on unsealed rolling stock.]]></description>
      <pubDate>Tue, 16 Sep 1997 00:00:00 GMT</pubDate>
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      <title>EFFECTS OF VARIABLE TIRE PRESSURE ON ROAD SURFACINGS. VOLUME 1: DESIGN, CONSTRUCTION, BEHAVIOR UNDER TRAFFIC, AND TEST RESULTS</title>
      <link>https://trid.trb.org/View/387008</link>
      <description><![CDATA[The objective of this study was to determine the effects of variable tire pressure on road surfacings.  A specially designed test road was constructed and subjected to both loaded and unloaded 18-wheeled log trucks operating in two distinct traffic lanes.  The traffic was applied with the trucks operating at low- and high-tire pressures.  This report presents the backgrounds, design, construction procedure, and discussion of the performance of the various items during traffic.  The results show that (a) when failures occurred in both lanes of the same asphalt concrete item, the ratio of low-tire pressure traffic to high-tire pressure traffic ranged between 1.5 and 21, (b) considerable maintenance will be required on aggregate surfaced grades receiving high-tire pressure loaded traffic because of severe washboarding, (c) the installation of central tire inflation systems that allow a driver to adjust a vehicle's tire pressure while in motion will be cost-effective for heavy trucks traveling on low volume, low speed roads.]]></description>
      <pubDate>Mon, 09 May 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/387008</guid>
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      <title>MICRO-PRESSURE WAVES RADIATING FROM EXITS OF SHINKANSEN TUNNELS</title>
      <link>https://trid.trb.org/View/382872</link>
      <description><![CDATA[When a train enters a tunnel at a high speed, an environmental problem occurs: a sudden explosive sound and an abrupt rattling of window frames or shutters of houses near the tunnel exit. These phenomena are caused by a pressure pulse radiating out of the tunnel exit.  This problem mainly occurs at long tunnels with concrete slab track and becomes more serious as the train speed increases.  Several present and other possible countermeasures in the future in the Shinkansen are introduced.]]></description>
      <pubDate>Sun, 26 Sep 1993 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/382872</guid>
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      <title>REDUCTION OF MICRO-PRESSURE WAVE RADIATED FROM TUNNEL EXIT BY SIDE BRANCHES IN TUNNEL</title>
      <link>https://trid.trb.org/View/218298</link>
      <description><![CDATA[When a train enters a tunnel, a pressure pulse called a micropressure wave is radiated from the other end of the tunnel.  Various methods have been applied to the tunnels on the Shinkansen lines to alleviate it.  A method using the side branches in a tunnel has been adopted at the Haruna and Nakayama tunnels on the Joetsu Shinkansen.  The effect of this countermeasure was confirmed at these tunnels.]]></description>
      <pubDate>Sat, 30 Nov 1985 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/218298</guid>
    </item>
    <item>
      <title>BLOWUP OF CONCRETE PAVEMENTS</title>
      <link>https://trid.trb.org/View/216754</link>
      <description><![CDATA[Blowups of concrete pavements are caused by axial compression forces induced in the pavements by a rise in temperature and moisture.  Although numerous papers and reports have been published on this subject, they have not yet resulted in the development of a generally accepted analysis.  The purpose of the study is to establish the blowup mechanism for concrete pavements and to provide an analysis for problems of this type.  The analysis presented is based on the assumption that blowups are caused by lift-off buckling of the pavement.]]></description>
      <pubDate>Wed, 31 Jul 1985 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/216754</guid>
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    <item>
      <title>DEFORMATION ANALYSIS FOR PERIODICALLY LAYERED SOIL</title>
      <link>https://trid.trb.org/View/204206</link>
      <description><![CDATA[The paper discusses a technique to determine the deformations of a periodically layered half space subjected to a uniform circular applied pressure.  Consideration is given to the center settlement, edge settlement and horizontal displacement at the edge.  Results are presented for a wide range of geometries and soil conditions.  The validity of two approximate approaches which represent the deposit as a single homogeneous layer are then evaluated. It is shown that simple approaches will suffice for a wide range of conditions, and parametric solutions are provided for certain situations where simple approaches are not appropriate.]]></description>
      <pubDate>Thu, 30 Aug 1984 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/204206</guid>
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      <title>CONE PENETRATION TEST AND PILE BEARING CAPACITY PREDICTION</title>
      <link>https://trid.trb.org/View/203447</link>
      <description><![CDATA[A large number of full scale loading tests carried out mainly by the French Laboratoires des Ponts et Chaussees, has provided the experimental data necessary for verifying the validity of pile bearing capacity prediction methods based on the interpretation of the CPT and more precisely on the point resistance g sub c.  The loading tests concerned cast-in-situ, driven and even injected piles (under high-pressure) installed in a very wide range of soils.  The cast-in-situ piles included simple bored piles, cased piles or bentonite bored piles.  Driven piles included H-type steel piles and closed base tubes.  Over half of the tested piles were equipped with extensometers for unit skin friction and point resistance measurement.  The new prediction rules proposed, are based on an original soil classification according to the cone resistance g sub c. They include tables making it possible according to the soil nature, its compactness, the type of pile and even the pile placement mehtod, to choose the appropriate values of alpha and k sub c.]]></description>
      <pubDate>Thu, 28 Jun 1984 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/203447</guid>
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      <title>LATERAL PRESSURES IN A CONFINED POROUS MEDIUM</title>
      <link>https://trid.trb.org/View/203471</link>
      <description><![CDATA[M. Y. Corapcioglu, et al. has obtained expressions for deformations and stresses due to a single surface line load in a fluid saturated porous medium of finite width.  The problem has a practical importance, especially in the case of elevated, unpaved roads which are supported by retaining walls on both sides.  In a subsequent paper by Corapcioglu and A.  N.  Ural, the expressions for deformations and stresses for one or two-vehicle operation are given based on solutions obtained in the previous analysis.  The present paper briefly reviews other available techniques and presents a comparison of lateral stresses which are exerted on the retaining walls.]]></description>
      <pubDate>Thu, 28 Jun 1984 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/203471</guid>
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    <item>
      <title>WORKBOOK FOR ESTIMATING EFFECTS OF ACCIDENTAL EXPLOSIONS IN PROPELLANT GROUND HANDLING AND TRANSPORT SYSTEMS</title>
      <link>https://trid.trb.org/View/82525</link>
      <description><![CDATA[A workbook is presented to supplement an earlier NASA publication, which was intended to provide the designer and safety engineer with rapid methods for predicting damage and hazards from explosions of liquid propellant and compressed gas vessels used in ground storage, transport and handling. Information is presented in the form of graphs and tables to allow easy calculation, using only desk or handheld calculators. Topics covered in various chapters are: (1) estimates of explosive yield; (2) characteristics of pressure waves; (3) effects of pressure waves; (4) characteristics of fragments; and (5) effects of fragments and related topics.]]></description>
      <pubDate>Wed, 28 Mar 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/82525</guid>
    </item>
    <item>
      <title>A RESEARCH PROGRAM TO REDUCE INTERIOR NOISE IN GENERAL AVIATION AIRPLANES</title>
      <link>https://trid.trb.org/View/69482</link>
      <description><![CDATA[Analytical and semi-empirical methods for determining the transmission of sound through isolated panels and predicting panel transmission loss are described. Test results presented include the influence of plate stiffness and mass and the effects of pressurization and vibration damping materials on sound transmission characteristics. Measured and predicted results are presented in tables and graphs.]]></description>
      <pubDate>Tue, 14 Mar 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/69482</guid>
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