Vol I, Issue 7  July 2005

Draft Study Examines Use of Appointment System on Upper Mississippi River
In June, NETS researchers from the Center for Transportation Studies at the University of Missouri--St. Louis released a draft report examining scheduling and sequencing options to potentially improve the efficiency of the lockage operations on the Upper Mississippi River-Illinois Waterway (UMR-IW).

The study presents and evaluates a discrete event-based simulation model for potential use in investigating the lower five 600-feet long lock chambers of the UMR-IW navigation system. The model is employed to identify the potential impacts of a specific traffic management policy, namely re-sequencing commercial tows in lock queues to replace the existing first come, first-served policy.

Fact Sheet | Paper (pdf, 3.9 MB)

Tradable Permits for Inland Locks Studied
NETS researchers Dr. Charles Plott and Dr. Joseph Cook of National Economic Research Associates have submitted a partial draft report on tradable permits for locks on inland waterways.

The objective of the study is to design a testable mechanism for the inland waterway system that would allow individuals to reduce their overall transportation cost, reduce uncertainty associated with potential delays and place a dollar value on the benefits of reducing the duration of, or even eliminating, critical delays. Specifically, the researchers explore the use of a system of tradable priority permits issued to existing river barge operators in proportion to existing and historical operations on the river.

Fact Sheet | Paper (315 KB)

Project Report Presented on Longer-Term Forecasting of Commodity Flows on Mississippi
On July 6, NETS researcher Dr. William Wilson of North Dakota State University presented a project report on “Longer-Term Forecasting of Commodity Flows on the Mississippi River: Applications to Grain and World Trade”

The report reviewed the researchers overall approach and presented current results. Outstanding issues related to the deterministic model and risk questions were reviewed. The goal of the project is to collect and analyze important data impacting world trade in grain and oilseeds; develop an analytical model to analyze world grain and oilseeds trade; and conduct a risk analysis.

Fact Sheet | Report (ppt, 1.67 MB)

NETS Team Members Visit St. Lawrence Seaway
From May 25-26, three members of the NETS team, led by Technical Director Keith Hofseth, visited the St. Lawrence Seaway in Massena, New York, which includes the St. Lawrence Seaway Development Center.

The participants received a general overview of the system; background on performance measures and service level objectives; information on the Seaway’s implementation of an automatic identification system; and details on the Seaway’s use of a Traffic Management System to manage transits.

Trip Report (26 KB, pdf)

HarborSym to Be Featured in Training Course
The NETS product HarborSym will be featured in an upcoming training course sponsored by the Corps’ Deep Draft Navigation Planning Center of Expertise.  HarborSym is a Monte Carlo simulation model designed to facilitate the economic evaluation of vessel interactions within a deep draft harbor. 

There will be two 1 ½ day training sessions held between 29-31 August in Mobile, Alabama.  The courses will provide in-depth exposure to the models’ capability through lecture and hands-on activities.  Both sessions are available to Corps employees and are being offered without tuition fees. 

For information on HarborSym, please contact Shana Heisey at IWR . To express interest in attending the training, please contact Ken Claseman at the Center of Expertise.

Fact Sheet

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Download the reader for PDF documents.

Navigation Economic Technologies Program, US Army Corps of Engineers