St Lawrence Seaway DIS Solution by TRANSAS

Press Release
Tuesday, July 17, 2012
Image courtesy of TRANSAS

St. Lawrence Seaway authority adopt TRANSAS Draft Information System (DIS)

The St. Lawrence Seaway is one of the most important transportation links in North America. To maximize the efficient use of the seaway, in 2001, the Seaway authorities started to a study to determine the maximum load ships can carry while maintaining a safe Under-Keel Clearance (UKC).

Over the years the maximum draft of vessels transiting the Seaway in the MLO Montreal to Lake Ontario and the Welland Canal has been gradually increased. At the opening of the Seaway in 1959, the maximum draft for ships was set at 6.85 meters (22 feet 6 inches ).  This maximum draft is now set at (26 feet 6 inches).

However, changes in water levels and a phenomenon called ship sinkage or "squat" made adjusting the maximum draft again more complicated. How much a ship "squats" depends on factors such as the size and speed of the ship, shape of the channel, depth of the water, currents, wind, and even the presence of other ships.

Undertaken at the request of the St. Lawrence Seaway Management Corporation and industry partners that included the Canadian Ship owners Association and the Shipping Federation of Canada, a study produced standard squat models for the various types of vessels transiting the Seaway.

Accordingly, TRANSAS developed a Draft Information System ( DIS ) based on the NS4000 ECDIS which allows the accurate display of the vessel's position, real time water levels and data from highly detailed bathymetric charts.

The DIS can run as a stand-alone system or in a network with the Transas NS4000 ECDIS providing a unique combination of precise navigation instruments, high definition chart data and real-time navigation information in both the DIS and the ECDIS.

Maritime Reporter August 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

Seacure Higher Flow-Rate BWTS Certified by BSH

Evoqua inform that the Federal Maritime and Hydrographic Agency of Germany (Bundesamt für Seeschifffahrt und Hydrographie- BSH), which previously granted the Evoqua

Aiming to Make Less Fuel Go Further: Maersk Drilling

Maersk Drilling says it is engaged in an energy efficiency project for its newbuilds together with Maersk Maritime Technology. The project involves an Energy Management System (MSPS),

TRIYARDS' Liftboat Orderbook Filling up

*This new order brings total liftboat contracts to date to 14, and showcases TRIYARDS’ engineering versatility * Win affirms TRIYARDS' leadership position as

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Navigation Pod Propulsion Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction Sonar Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1054 sec (9 req/sec)