NAV CANADA implements ADS-B

January 15, 2009, NAV CANADA commenced operational application of Automatic Dependent Surveillance - Broadcast (ADS-B) as a means of providing aircraft surveillance (position and identity) information to Air Traffic Controllers (ATC). This implementation of ldquoADS-B Outrdquo over our Hudson Bay airspace in Montreal and Edmonton Area Control Centres (ACCs), was the first significant milestone in a multi-phase program the company has undertaken to provide expanded surveillance coverage using ADS-B over airspace previously controlled using procedural separation techniques. Our ADS-B program is one facet in the company´s on-going efforts to migrate to enhanced surveillance technologies, including Wide-Area Multilateration (WAM) and advanced surface movement guidance systems, which is one element of our rapid investment in Air Navigation Systems (ANS) infrastructure renewal and enhancements to benefit our customers. This paper will describe our Hudson Bay ADS-B project and, in particular, the challenges we faced and the approach we applied to integrate the data from this CNS technology into our Air Traffic Management (ATM) environment. Our focus has been on the safety and efficiency benefits this technology delivers to our customers. It is a good news story of a practical application of all the hard work which has gone into development of this technology, its associated international standards and the collaboration between aircraft manufacturers, airspace users and Air Navigation Service Providers (ANSPs) to see it implemented as soon as possible.