Developing the next generation of air traffic control in Canada

空中交通管制历来依靠位于地面的导航辅助设备和雷达，分别用于导航和交通监测。利用卫星进行地理定位的最新进展使不需要地面导航辅助设备的飞行程序得以发展。然而，空中交通管制仍然主要依靠雷达。到目前为止，飞行员几乎没有收到关于周围其他交通的信息：这些信息被提供给中央空中交通管制单位，然后由中央空中交通管制单位使用这些信息来建议和指导飞行员，以便保持飞机之间的安全距离。

Air traffic control has historically depended on navigational aids and radars, both located on the ground, for navigation and traffic monitoring, respectively. Recent developments in geographical positioning using satellites has allowed the development of flight procedures that do not require ground navigational aids. However, air traffic control still relies mostly on radars. To date, pilots receive little to no information on other traffic in their surrounding: that information is made available to a centralized air traffic control unit, which then uses it to advise and guide pilots in order to maintain a safe distance between aircraft.