Nav Canada is to upgrade existing air traffic control (ATC) systems in Canada in a $1.3bn deal to reduce greenhouse gas emissions and improve airspace capacity.
The upgrade involves the installation of a new GPS satellite-surveillance system that allows 16 flights to occupy the same airspace. It aims to increase capacity and offer more direct routes with fewer delays.
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In January 2009, Nav Canada installed the automatic dependent surveillance-broadcast (ADS-B) system in Hudson Bay, which allows air-traffic controllers to separate aircraft by 5nm for fuel-efficient routing.
More ADS-B systems are expected to be installed in the eastern Arctic and southern Greenland in 2010.
The new system could save up to $50m in fuel costs and result in a 131,000t reduction in greenhouse gas emissions over the next eight years.
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