<rss version="2.0" xmlns:atom="https://www.w3.org/2005/Atom">
  <channel>
    <title>Transport Research International Documentation (TRID)</title>
    <link>https://trid.trb.org/</link>
    <atom:link href="https://trid.trb.org/Record/RSS?s=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" rel="self" type="application/rss+xml" />
    <description></description>
    <language>en-us</language>
    <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>
    <image>
      <title>Transport Research International Documentation (TRID)</title>
      <url>https://trid.trb.org/Images/PageHeader-wTitle.jpg</url>
      <link>https://trid.trb.org/</link>
    </image>
    <item>
      <title>Mine car suspension parameter optimisation based on improved particle swarm optimisation and approximation model</title>
      <link>https://trid.trb.org/View/1686474</link>
      <description><![CDATA[A suspension parameter optimisation method is proposed in this paper to improve mine car ride comfort. The most influential parameters on vehicle ride comfort are chosen as optimisation variables by analysing parameter sensitivity using a 7-degrees-of-freedom vehicle model. A simplified regression model based on the response surface method accelerates the optimisation process. An improved chaos particle swarm optimisation (ICPSO) approach is proposed based on standard particle swarm optimisation to optimise suspension parameters in the regression model. The ideal match of suspension parameters is obtained. Simulation results show that improved suspension parameters can greatly ensure the weighted root mean square acceleration and tyre dynamic loads; additionally, suspension dynamic deflections are limited within an allowable range. Test results reveal that the suspension multi-parameter optimisation method based on ICPSO can improve vehicle ride comfort. Therefore, this method can be used to guide future research and development of suspension systems.]]></description>
      <pubDate>Fri, 03 Apr 2020 16:39:23 GMT</pubDate>
      <guid>https://trid.trb.org/View/1686474</guid>
    </item>
    <item>
      <title>Tennessee rocks! : tall bridges and vintage GE power</title>
      <link>https://trid.trb.org/View/1586681</link>
      <description><![CDATA[Table of contents: Tall bridges and a fleet of attractive General Electric B-boats are the attraction on this scenic former Tennessee Central route.]]></description>
      <pubDate>Tue, 19 Feb 2019 16:23:41 GMT</pubDate>
      <guid>https://trid.trb.org/View/1586681</guid>
    </item>
    <item>
      <title>Plaster City Alcos : narrow gauge Alcos in the desert</title>
      <link>https://trid.trb.org/View/1484364</link>
      <description><![CDATA[Table of contents: Originally built for the White Pass & Yukon, rare narrow gauge DL-535Es can be found in the California desert.]]></description>
      <pubDate>Mon, 02 Oct 2017 11:43:12 GMT</pubDate>
      <guid>https://trid.trb.org/View/1484364</guid>
    </item>
    <item>
      <title>Navajo Mine Railroad : the loneliest railroad in America</title>
      <link>https://trid.trb.org/View/1396666</link>
      <description><![CDATA[]]></description>
      <pubDate>Mon, 01 Feb 2016 11:37:46 GMT</pubDate>
      <guid>https://trid.trb.org/View/1396666</guid>
    </item>
    <item>
      <title>Jamaican railways today : hauling bauxite in paradise</title>
      <link>https://trid.trb.org/View/1385903</link>
      <description><![CDATA[]]></description>
      <pubDate>Mon, 04 Jan 2016 11:55:06 GMT</pubDate>
      <guid>https://trid.trb.org/View/1385903</guid>
    </item>
    <item>
      <title>Copper for victory : Andreas Feininger's 1942 photographs of Utah's Bingham Canyon mine and trains</title>
      <link>https://trid.trb.org/View/1318936</link>
      <description><![CDATA[]]></description>
      <pubDate>Thu, 07 Aug 2014 11:43:28 GMT</pubDate>
      <guid>https://trid.trb.org/View/1318936</guid>
    </item>
    <item>
      <title>STATE-OF-THE-ART SIGNALLING IN CHILE</title>
      <link>https://trid.trb.org/View/741549</link>
      <description><![CDATA[The largest copper mine in the world, the El Tiente in Chile, is currently upgrading its facilities to achieve an output of 131,000 tonnes per day.  The upgrade includes new rolling stock - a further eight locomotives and 46 new 80-tonne wagons, and an upgraded signalling system.  The new signalling system is a moving-block, transmission based system with Automatic Train Protector (ATP).  The system has no track based train detection; all train position information is calculated by the train's on board computer that uses balises to define an absolute position every 300 m, and tachometers to measure the distance from the previous balise.  The trains will be driverless; the only human intervention will be by operators outside the mine who control the loading of the wagons in the mine and the train as it passes through the hoppers.]]></description>
      <pubDate>Mon, 20 Sep 2004 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/741549</guid>
    </item>
    <item>
      <title>REQUIEM FOR THE NEVADA NORTHERN</title>
      <link>https://trid.trb.org/View/243670</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Tue, 31 May 1988 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/243670</guid>
    </item>
    <item>
      <title>KAISER STEEL'S EAGLE MOUNTAIN MINE RAILROAD</title>
      <link>https://trid.trb.org/View/243369</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Sat, 30 Apr 1988 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/243369</guid>
    </item>
    <item>
      <title>COMPUTER SIMULATION AS AN AID TO RAILWAY PRODUCTIVITY</title>
      <link>https://trid.trb.org/View/243423</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Sat, 30 Apr 1988 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/243423</guid>
    </item>
    <item>
      <title>ENERGY CONSERVATION WITH FLYWHEELS</title>
      <link>https://trid.trb.org/View/181402</link>
      <description><![CDATA[The flywheel can be made to store more energy per unit weight, volume and cost than conventional electric storage batteries.  It accepts or delivers the energy at a much higher rate than the electric battery, and has a much longer operating life.  These capabilities uniquely qualify the flywheel for many mobile energy conservation concepts which, if implemented, could significantly reduce world oil consumption.  Flywheels made of isotropic materials, such as solid steel, are generally limited to about five or six watt-hours-per-pound.  The performance of the improved wound flywheels are now in the range of ten to thirty-watt-hours-per-pound, and the principal objective of the current U. S.  Department of Energy high performance program is a demonstration of flywheels having a capability of forty watt-hours-per-pound.  Actual laboratory demonstrations have exceeded twice this value.  Applications subject to current flywheel programs are for urban buses (flywheel only; flywheel/diesel hybrid), automobiles (flywheel/battery hybrid, flywheel/engine hybrid, miniature car with flywheel only), mine shuttle car, stationary electric generators from about 1 kWh to 100 kWh,and for tools.]]></description>
      <pubDate>Sat, 30 Oct 1982 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/181402</guid>
    </item>
    <item>
      <title>MATERIALS HANDLING FOR URBAN TUNNELING IN ROCK</title>
      <link>https://trid.trb.org/View/89439</link>
      <description><![CDATA[An examination of prior forecasts of tunnel construction provides an estimate of 2.4 million feet of rock tunnel to be constructed during the 1976-2000 period. Tunnel projects for the near term (1980+) and far term (1990+) periods are defined for study. The flow and characteristics of materials handled are defined for the tunnel projects. The state-of-the-art and status of R&D programs for materials handling are reviewed. Based on extensive interviews with representatives of tunnel contractors, equipment manufacturers, government agencies, and consultants, the application of various methods of material handling to tunneling is discussed, including conventional rail haulage, crane and hoist lifting, and horizontal transport and lifting by hydraulic and pneumatic pipeline and by conveyor. Total job cost estimates using these modes of material transport are obtained (with material handling costs isolated) by modification of an estimating technique used for preparing contractor bid estimates. A comparison of the results indicates that major cost savings through substitution of alternative material handling modes should not be anticipated. R&D program elements are recommended to assure that material transport will not become the limiting factor as the rate of tunnel excavation increases in future years.]]></description>
      <pubDate>Sat, 07 Nov 1981 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/89439</guid>
    </item>
    <item>
      <title>AUTOMATED UNDERGROUND RAIL HAULAGE: HOW TO PLAN AN EFFICIENT SYSTEM</title>
      <link>https://trid.trb.org/View/79376</link>
      <description><![CDATA[Demands for increased productivity and better working conditions underground have in recent years accelerated the development of methods for automated underground rail haulage.  Increased effectiveness can also be achieved with less-than-complete automation -- for example, simple remote control of trains during loading and unloading.  The author explains how to plan an efficient system for rail haulage automation.  Maintenance and trouble-shooting for such a system are also covered, and it is shown how to choose between centralized and decentralized control when developing haulage system design.]]></description>
      <pubDate>Thu, 12 Oct 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/79376</guid>
    </item>
    <item>
      <title>AUTOMATIC COAL HAULAGE SYSTEM IN THE STASZIC MINE, KATOWICE, POLAND</title>
      <link>https://trid.trb.org/View/79377</link>
      <description><![CDATA[The introduction and operation of an automatic horizontal haulage system for level 720 m in this Polish underground coal mine are described.  The automation of level 720 m is designed to increase the haulage capacity, reduce the work force required, and improved safety.  This automation system for coal haulage comprises: (1) Remote control of the loading; (2) Unloading of the trains; and (3) Automatic train control on the line between the loading stations and the unloading station.]]></description>
      <pubDate>Thu, 12 Oct 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/79377</guid>
    </item>
    <item>
      <title>RUBBER-TIRED VERSUS RAIL HAULAGE AS A SERVICE FUNCTION</title>
      <link>https://trid.trb.org/View/73957</link>
      <description><![CDATA[An analysis was conducted for a proposed Illinois mine.  The factors considered were operating capabilities, capital investment, operating costs (including labor), tax considerations, cost of capital and various intangible factors.  Mantrip costs and speeds were determined to be equal in both systems.  The model for this study was a shaft mine projected to produce 12,000 tpd (raw) by room and pillar methods in a 6-ft seam.  Panels were to be 750 ft wide by 4,000 ft deep.  Average grade would be 0.5% against the loads.]]></description>
      <pubDate>Wed, 19 Jul 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/73957</guid>
    </item>
  </channel>
</rss>