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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>TRAIN ACTION MEASUREMENTS IN THE TROPICANA UNIT TRAIN</title>
      <link>https://trid.trb.org/View/18312</link>
      <description><![CDATA[The extensive test program conducted with the Tropicana unit train operation has led to a better understanding of train dynamics, train handling procedures, and the required in-train characteristics of hydraulic end-of-car units. Results of the test with a conventional gear train containng a group of 100-ton cars have shown the presence of train action forces in the 300,000- to 400,000-lb range. The magnitude of train action forces are dependent to a large degree upon individual car weights.  As the car weights increase, the dynamic force levels increase.]]></description>
      <pubDate>Mon, 16 Aug 1976 00:00:00 GMT</pubDate>
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