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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>EDP-ASSISTED FLEET SCHEDULING IN TRAMP AND COASTAL SHIPPING</title>
      <link>https://trid.trb.org/View/47010</link>
      <description><![CDATA[Advanced benefits in the pool result can be achieved by applying modern scheduling techniques, in conjunction with electronical data processing.  Even with a fleet of only five ships, the detailed computer system proved to be superior to manual techniques of experienced schedulers. The computed schedule permitted, on the average, each ship to be assigned to additional jobs for one day per month. This effect increases relative to the number of ships scheduled.  For an EDP-system to be effective it is necessary to use the basic information concerning the scheduling; including information on short term alterations, such as subletting or offers on the free market.  The analysis of changes within the scheduling system normally involves a great manual effort.  To overcome this problem the scheduler is able to communicate on line, in dialogue with the computer through the console, direct from his workplace.  Depending upon the required information and the urgency of the reply, the scheduler is able to select, at distinct levels, an analysis of the effect of a particular operation.  At the first stage, he obtains the variations of the economic pool result by changes and decisions relative to the schedule.  At the next level, notice of the best possibilities of voyage combinations and assignments for ships and contracts are given.  In the last stage, the system computes the schedule with the best pool result.]]></description>
      <pubDate>Tue, 26 Oct 1976 00:00:00 GMT</pubDate>
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      <title>GREAT LAKES WINTER NAVIGATION - TECHNICAL AND ECONOMIC ANALYSES VOL. II: COMPUTER PROGRAM - DOCUMENTATION AND USER INSTRUCTIONS</title>
      <link>https://trid.trb.org/View/21077</link>
      <description><![CDATA[This volume in a series of reports provides user instructions and documentation for the Extended Season Program (ESP) developed under sponsorship of the Maritime Administration.  The program analyzes the costs and benefits accruing to a Great Lakes shipowner in operating an individual vessel in the bulk trades in an extended shipping season.  The program can deal with a large variety of ship types, shipping routes, and conditions of winter environment.]]></description>
      <pubDate>Thu, 16 Jan 1975 00:00:00 GMT</pubDate>
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      <title>A DESCRIPTION OF THE MARITIME ADMINISTRATION MATHEMATICAL SIMULATION OF SHIP OPERATIONS</title>
      <link>https://trid.trb.org/View/4028</link>
      <description><![CDATA[A mathematical simulation of the operation of a fleet of berth-liners has been developed for use as a planning tool. It consists of two major functional parts, a Roll Call Program which controls the activities of simulated ships and a Schedule Generator which assigns them sailing dates and services. The simulation output provides ship utilization information and financial data. A test of the simulation against the historical data for a North Atlantic Trade Route shows good agreement. Application of the simulation in investigating a ship of advanced design for future use is presented. Possible uses of this management tool are outlined.]]></description>
      <pubDate>Fri, 11 May 1973 00:00:00 GMT</pubDate>
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      <title>OPERATIONS RESEARCH AND SHIP DESIGN</title>
      <link>https://trid.trb.org/View/3800</link>
      <description><![CDATA[The Maritime Administration's Directed Research Program in part is directed toward Operations Research. Heart of this program is the development of a mathematical model for use in a computer to simulate the operations of a fleet of ships. Part of this model will be directed toward improving ship design so it can best serve the fleet operational needs.]]></description>
      <pubDate>Fri, 11 May 1973 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/3800</guid>
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      <title>DYNAMIC PROGRAMMING A TANKSHIP CHARTER MARKET</title>
      <link>https://trid.trb.org/View/4795</link>
      <description><![CDATA[Dynamic programming is applied to a demand/supply model of the tankship charter market to provide the decision maker with a consistent method of optimizing vessel employment. The ship investment order and sell decision is treated briefly.  The model is developed from a state space consisting of X, the ship's condition; D, demand level for the ship's service; S, supply level for the vessel type; and L, lead time necessary for vessel ordering.  A FORTRAN program demonstrates the computational feasibility of the dynamic programming approach to such a model.  By inserting cost information of interest into the program, solutions of real world problems are easily performed.]]></description>
      <pubDate>Fri, 29 Sep 1972 00:00:00 GMT</pubDate>
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