Inland Water Transportation Systems Series

Author(s):  
Nahid Parvez Farazi ◽  
Bo Zou ◽  
P.S. Sriraj

The inland waterway freight transportation system plays a vital role in the trade and commerce of the U.S.A. To ensure that the system performs at an acceptable level, routine monitoring and performance evaluation of the system is critical. Individual states are responsible for developing and implementing suitable performance measurement systems for their respective inland waterways. This paper focuses on surveying, reviewing, and synthesizing current performance measurement practices adopted by different states in the U.S.A. It finds that, among the 38 states with inland navigability, only 12 states have established performance measures to monitor the performance of their inland water transportation systems. To aid the states in developing and enhancing inland waterway performance measurement programs, the paper further outlines the current state of research on inland waterways, recommendations from various federal and maritime organizations, and also current practice outside of the U.S.A. Based on a scan of the publicly available data sources, the paper proposes a two-dimensional performance measurement practice from the perspectives of performance areas and infrastructure types. Such an approach will help state Departments of Transportation to identify system needs and deficiencies while offering a comprehensive picture of performance of an inland water freight transportation system.


2007 ◽  
Vol 34 (9) ◽  
pp. 1038-1047 ◽  
Author(s):  
Musandji Fuamba ◽  
Gilles Brosseau ◽  
Éric Mainville

Optimal management of power plant units is achieved when the global efficiency of the units and the minimization of the total hydraulic head losses through the water transportation systems can be combined. Evaluating these hydraulic head losses appears to be very difficult due to the complexity of the flow conditions through the hydraulic structures. A hydraulic energy based method to determine head losses in the surge chamber has been proposed in this paper, as well as a method to manage the opening of units which would optimize the production of electricity. This method was applied to a case study, and successful results have been obtained showing how the head loss varies in the surge chamber.Key words: hydraulic head losses, power plant unit, surge chamber, unit efficiency, three-dimensional flow conditions, turbulent flow models, computational fluid dynamics.


Author(s):  
Stephen Corbett

The Massachusetts Water Resources Authority (MWRA) is an independent authority. MWRA is constructing new primary and secondary wastewater treatment facilities on Deer Island in Boston Harbor. The new facilities will replace two antiquated primary treatment plants located on Deer Island and Nut Island, which is in Quincy Bay. Information on project management, project mitigation, and the facility siting process is provided, and the marine facilities and transportation services and the Boston Harbor Project labor agreement are described.


2007 ◽  
Vol 56 (5) ◽  
pp. 345-355 ◽  
Author(s):  
J. Q. J. C. Verberk ◽  
K. J. O'Halloran ◽  
L. A. Hamilton ◽  
J. H. G. Vreeburg ◽  
J. C. van Dijk

1993 ◽  
Vol 19 (1) ◽  
pp. 12-14 ◽  
Author(s):  
James Frederick Edwards ◽  
Brian Paul Hindle

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