lockage


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Words related to lockage

a fee charged for passage through a lock in a canal or waterway

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a system of locks in a canal or waterway

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passage through a lock in a canal or waterway

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References in periodicals archive ?
The busiest lock again last year was Hillmorton Lock on the Oxford Canal but coming a close second, with 8,831 lockages, was New Marton Lock on the Llangollen Canal.
Smith, Sweeney, and Campbell (2009) developed a more detailed simulation model that incorporates time-varying dynamics of traffic and lockage operations on the UMR.
A lockage operation consists of a vessel entering the lock chamber, having the water level raised or lowered as needed, and then exiting the chamber.
The data includes 70,180 individual lockages in our study section and shows a large variability in the distribution of lockage times.
Smith, Sweeney, and Campbell (2009) identify calendar year 2000 as the most representative year of normal UMR operations in our lockage data because that year was relatively unaffected by extraordinary system events such as extended lock closures, and it experienced relatively typical weather, water flow, and other operating conditions.
From careful analysis of the detailed lockage data for the baseline year, we identified 4,970 itineraries for Double and Single Tows, with the origin and destination pattern shown in table 3.
The vessel-processing times at the individual locks and transit times through the pools are distributed log-normally in the model, with means and variances varying monthly by vessel type, operational lockage type, and direction of movement.
the number of lockages, lockage times, pool transit times) we refer the reader to Smith, Sweeney, and Campbell (2009).
To further explore the impact of including shippers' choice in the model, we examine system performance under increasing traffic demands in conjunction with the implementation of three proposed UMR congestion mitigation measures (National Research Council 2004): (1) amended vessel scheduling at locks via a "fastest expected lockage time" policy (FLT), (2) providing helper boats at locks in conjunction with FLT scheduling (HLP), and (3) construction of larger new locks (NEW).
These helper boats decrease the lockage time for each Double Tow by approximately 15 minutes (US Army Corps of Engineers 2004).
With new 1,200-foot locks, all lockages become single cut lockages and lockage times drop dramatically for tows that are currently processed in a double cut lockage.
Table 1/Annual Lockages, Percent of Total, Mean, and Standard Deviation of Lockage Times at UMR Locks 20-25 Lock Vessel Croup Lockages Lockages Mean Lockage Time (min.
Lawrence Seaway reported 81,581 tonnes (80,296 long tons) of new cargo (approximately one-half of which was domestic short sea freight) during the first three months of 2005 as a result of reductions in lockage fees on the Welland Canal (Canadian Transportation Logistics 2005).
The bulk commodity market, although already existing, requires revitalization through promotion of smaller quantity shipments, including reduced lockage fees for small vessels, development of efficient tug/barge combinations (including converting older ships to barges), and improved transshipment connections in ports.
Following extensive comments and ideas on the proposed canal lockage fee, Minister Kent in consultation and with suggestions from canal Government MPs announced on May 14 that Parks Canada will freeze lockage fees along Canada's historic canals for three years at 2008 levels.