Vol I, Issue 1   January 2005

NETS Web Site Debuts
We are proud to announce the debut of the NETS web site, The site is designed to provide the public with up-to-date, in-depth information on NETS research studies, as well as general information about the program. The web site includes 1-page fact sheets about each study, progress reports, presentations, final products and other valuable information. The site will be regularly updated to reflect the latest developments.

Results of NETS Studies Presented at TRB Meeting
Several NETS researchers presented study results at the annual meeting of the Transportation Research Board on January 10, 2005. The studies presented were:

  • A Study of Short-Run Movements in Grain on the Inland Waterway System
    Fact Sheet | Paper

  • Transportation Demand for Grain Shipments: A Revealed and Stated Preference Approach
    Fact Sheet | Paper

  • Understanding Grain Movements for Demand Estimation: The Columbia-Snake River System in Washington State
    Fact Sheet | Paper

  • A Model of Spatial Market Areas and Transportation Demand
    Fact Sheet | Paper

NETS Researcher Appointed To TRB Committee
Dr. Wesley Wilson, one of the leaders of the NETS research effort, has been appointed to serve on the Inland Water Transportation Committee of the Transportation Research Board (TRB). His term will run through April 2007. The TRB is a division of the National Research Council, which serves as an independent adviser to the federal government and others on scientific and technical questions of national importance. The National Research Council is jointly administered by the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The mission of the TRB is to promote innovation and progress in transportation through research. The Inland Water Transportation Committee considers research related to the movement of freight and passengers by inland and intra- and inter-coastal waterways. Dr. Wilson is on the faculty of the Department of Economics at the University of Oregon.

Study Analyzes Impact of Greenup Lock Closure
A 52-day maintenance closure of the main chamber of the Greenup Lock and Dam in September/October 2003 resulted in 508 hours of additional processing time for tows and 26,957 hours of additional delays, according to a recently completed NETS study interim report. The additional processing time and delays resulted in added costs of approximately $13.2 million (figure is based on an average tow transit cost at Greenup of $481 per hour).

During the closure, 87.3 percent of the tows processing through Greenup had to double lock. As a result, the average processing time increased from 52.5 minutes for all tows outside of the closure period to 97.1 minutes for tows during the closure. The additional processing time led to delays of 27,590 hours for 718 tows for an average delay of 38.4 hours per tow. The average delay per tow outside of the closure period was 52.9 minutes.

The Greenup analysis is one of a series of NETS studies aimed at assessing the impact of lock closures on shippers. The studies are designed to help Corps planners better understand the implications of lock closures and take steps to limit the impact. The study is being managed by Wesley Walker, the Lead Regional Economist in the Huntington District of the Corps . The final report will be available next month.

Fact Sheet | Report

NETS web site:

Download the reader for PDF documents.

Navigation Economic Technologies Program, US Army Corps of Engineers