ATIS/VOLMET Flex ATIS/VOLMET/DATALINK and Clearance - Terma

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ATIS/VOLMET Flex DataLink Integration The ATIS/VOLMET Flex system also features DataLink integration that greatly enhances the possible applications including D-ATIS/D-VOLMET, DCL and PDC functionalities. Terma has implemented D-ATIS/D-VOLMET and PDC/DCL systems at many national and international airports all over the world. – D-ATIS/D-VOLMET, Digital ATIS/VOLMET, allows pilots to retrieve information e.g. on local weather conditions or runway and taxiway instructions via DataLink. – DCL, Departure Clearance, refers to the automated service through DataLink for requesting and delivering departure information and clearance that adheres to ICAO’s recommendations on read-back procedures. It provides a point-to-point communication between the aircraft and the ATC tower. – D-PDC, Pre-Departure Clearance via datalink, is provided by an Air Traffic Service via an airline host. The latter then conveys the PDC with the pertinent data to the aircraft upon request from the pilots when it best suits their work planning. DCL/PDC Functional Diagram DataLink SITA ACARS Strip printer Stripless system Terma DCL/PDC Datalink ARINC Other Datalink Service Providers LAN WAN Tower positions Technical positions DCL/PDC systems in other airports With DataLink, the pilot may enter his departure clearance request from 25 minutes prior to departure on the Aircraft Communication Addressing and Reporting System (ACARS) with flight plan, call sign, gate position, destination, and ATIS letter. In response, the system automatically verifies the data for compliance between the flight plan and the data received from the aircraft. Once this compliance has been established, an automated clearance message including all essential information such as Standard Instrument Departure (SID) and current ATIS letter is generated and transmitted to the cockpit.
Benefits – Cost-benefit effective system (studies show that the payback period is less than two years) – Reducing Radio Frequency congestion – Reducing work load of aircrew – No dependency of DSP network – Automatic clearances – reducing work load in TWR during peak hours – Can be stand-alone or integrated with existing FDPS – 20 seconds saved per request via DCL compared to normal voice procedure – During peak hours, DCL position save more than 20% effective time in Copenhagen TWR. – During a day, effective saved time exceeds more than one man-hour – Reduction of approximately two errors/ misunderstandings per day – Reduced noise load in TWR – Optimized overview of departing aircraft Time savings Estimated time saved using DCL compared to traditional voice clearance Less than 1 min. Approx. 1 min. Approx. 2 min. Approx. 3 min. More than 3 min. Number of pilots Source: Terma survey conducted with Scandinavian Airlines and Naviair in 2003 1 6 14 21 24
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ATIS/VOLMET Flex ATIS/VOLMET/DATALINK and Clearance - Terma

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