Datalink departure clearance trials update.

Voice communication is a pillar of air traffic management throughout all phases of flight - but nowhere is it as important as during surface operations. Finding space on the frequency to communicate can often times be challenge, especially when operations become irregular during weather events or peak push-times. Ground frequencies can become saturated with controllers providing taxi and clearance instructions to pilots and vehicles. To alleviate saturation, ANSPs have turned to more efficient ways to communicate route and clearance information to aircraft. Many airports around the world are using data link as a means to provide route and clearance instructions to the cockpit without using voice communications. [ABSTRACT FROM PUBLISHER]