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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>GENERAL CARGO CARRIERS--LOSS OF BUSINESS ACCELERATES</title>
      <link>https://trid.trb.org/View/148034</link>
      <description><![CDATA[The threat to conventional liners and tramps from unitised tonnage has been well publicised.  But the exact degree of unitised penetration into dry cargo trades has always been surrounded by a considerable amount of uncertainty.  Since the beginning of 1976 Lloyd's of London Press has maintained a computerised record of both conventional and unitised vessel sailings worldwide.  A detailed examination of the data for the developed world (W. Europe, the US and Japan) shows how general cargo ships have been losing out to containerships, ro/ro's and barge carriers.  In 1976 total sailings of general cargo and unitised vessels (of over 5,000 dwt) amounted to 494m. dwt.  Of this figure conventional ships accounted for 75%.  By 1978 total sailings had risen to 583m. dwt but the share of conventional ships had slipped to 72%.  And 1979 has seen a surge in unitised vessel activity which has reduced the conventional general cargo carriers' share of world trades to 68%.  Moreover, it is likely that final figures for 1979 general cargo sailings will show an absolute decline on 1978.]]></description>
      <pubDate>Wed, 27 Feb 1980 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/148034</guid>
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      <title>RESULTS OF A PILOT STUDY IN MARTIME TRANSPORT FOR THE YEARS 1966-1968</title>
      <link>https://trid.trb.org/View/84588</link>
      <description><![CDATA[Analysis of the network of goods movement in maritime transport.  Goods traded internationally are classified into 35 categories according to the general characteristics of their ocean carriage (eg., types of bulk cargo: dry or liquid; kinds of general cargo, etc.), coast lines of the world are divided into 29 regions.  Tables present the details of goods and flow between regions analyzed by type of goods.]]></description>
      <pubDate>Tue, 31 Jul 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/84588</guid>
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      <title>FOREIGN TRADE (YEAR): THE PORT OF NEW YORK AND NEW JERSEY. ANNUAL REPORT</title>
      <link>https://trid.trb.org/View/84959</link>
      <description><![CDATA[This annual report offers an analysis of the port's position in the handling of oceanborne and airborne foreign trade. Statistics are presented on exports; imports; bulk and general cargo movements; principal cargoes imported and exported; world distribution of the port's exports and imports; petroleum imports; value of the port's oceanborne foreign trade; value per ton of general cargo; the port's waterborne coastwise trade; and comparisons of New York imports and exports of oceanborne general cargo with other U.S. ports.  Statistics are also offered on the port's airborne foreign trade.]]></description>
      <pubDate>Wed, 13 Jun 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/84959</guid>
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      <title>NORTH AMERICAN PORT DEVELOPMENT EXPENDITURES SURVEY</title>
      <link>https://trid.trb.org/View/84897</link>
      <description><![CDATA[The Survey is being conducted by the Office of Port and Intermodal Development to update earlier port development expenditure reports containing historical data gathered since 1946.  The effort will include information on capital expenditures made by North American ports for the years 1973 to 1978 with projections for the period of 1979 through 1983.  Survey questionnaires are being completed by over 100 ports and will provide data on construction and modernization costs for facilities handling general cargo, specialized general cargo, and bulk cargo.  The final report, which will be distributed to all participating ports, will be available by summer 1979.]]></description>
      <pubDate>Wed, 13 Jun 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/84897</guid>
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      <title>GENERAL CARGO--U.K.'S POORER PERFORMANCE</title>
      <link>https://trid.trb.org/View/85154</link>
      <description><![CDATA[This article covers key areas of an unpublished report produced by the National Ports Council in association with the British Ports Association and the General Council of British Shipping, which compares the performances in general cargo handling of selected U.K. and Continental ports. Certain U.K. ports, namely London, Liverpool, Glasgow, Grangemouth, Tees and Hartlepool, Hull and Avonmouth showed lower levels of productivity in most cases than the European ports of Antwerp, Rotterdam, Hamburg and Bremen.  Export and import comparisons are made in Tables 4 and 5 respectively; Tables 6 and 7 are comparisions of normalised and basic data, exports and imports, respectively.  Table 8 gives the percentage of gang hours lost, Table 9, the percentage of gang hours lost outside port control and Table 10, the percentage of gang hours lost within port control, all for both exports and imports.  Table 12 is an average manning comparison.]]></description>
      <pubDate>Wed, 28 Mar 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/85154</guid>
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      <title>CURRENT TRENDS IN GREAT LAKES SHIPPING</title>
      <link>https://trid.trb.org/View/79175</link>
      <description><![CDATA[Shipping on the Great Lakes has changed rapidly in recent years.  Internal Great Lakes traffic consists almost entirely of bulk movements, primarily of iron ore, coal, limestone, and grain.  Ore shipments are mainly of taconite concentrate.  Low-sulfur coal from the western areas of the United States is now moving downbound through the lakes, a movement in the opposite direction from the predominantly upbound movement of Appalachian coal.  Opening of a larger lock in 1970 between lakes Superior and Huron has initiated a new generation of lake vessels which are three times the size of the previous lake ships, and are too large to transit the Welland Canal and the St. Lawrence Seaway; for the first time since 1959 the largest "lakers" are land-locked.  General cargo traffic between the Great Lakes and overseas has been declining rapidly since 1970, largely as the result of the rapid development of container ships, and the Interstate highway system, which increases the competitive advantages of salt-water ports.]]></description>
      <pubDate>Wed, 27 Sep 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/79175</guid>
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      <title>EVOLUTION, ECONOMICS AND EMPLOYMENT OF MULTI-PURPOSE DRY CARGO SHIPS (10-25,000 DWT)</title>
      <link>https://trid.trb.org/View/54538</link>
      <description><![CDATA[The Report covers:  The development of dry cargo shipping since World War II; The growth of the world shipping fleet over this period; The structure of the general cargo fleet, statistics being presented to show the importance of conventional multi-deck ships and their size, age, etc.; The origin and concept of multi-purpose cargo ships, highlighting the large "Liberty Replacement" market; The differences between the large number of standardised designs of multi-purpose ship presently marketed by shipbuilders; The facilities which such ships possess, or which are available as options; The existing fleet of multi-purpose vessels, showing the number of each of the main types in service, or on order; The operational costs of multi-purpose ships; The revenues of multi-purpose cargo ships; The employment of multi-purpose ships is considered together with chartering activity, in order to show the wide variety of trades in which this type of dry cargo ship is able to operate, and; The changing trading environment, and the extent to which developments in bulk and non-bulk trades will diminish, or increase, the requirement for multi-purpose ships in the competition from other ship types.]]></description>
      <pubDate>Thu, 13 Oct 1977 00:00:00 GMT</pubDate>
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