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AAS 1.15 CONCEPT OF GNSS-BASED ALTITUDE

The use of pressure-based altimeters to determine aircraft altitude has been universal across the globe for most of aviation history. This policy examines alternatives provided by Global Navigation Satellite System (GNSS) technologies. IFATCA Policy is: IFATCA encourages development of technologies … Continued

ATS 3.2 CLEARANCES

One of the fundamental operational principles that have been incorporated in the draft ICAO Manual of ATS Data Link Applications, 1st Ed. (1999), 3.36 from the beginning is that any ATS data link system shall only allow one ATSU (ATS … Continued

ATS 3.12 MIXED MODE OPERATIONS

The ATM system will continue to evolve through the use of technology. To permit certain categories of non-equipped flights to operate in mandatory equipage airspace, exemptions are given. The controller is often used as the mitigation to permit these flights … Continued

ATS 3.28 CONTROLLED TIME OF ARRIVAL CONCEPT

The RTA function enables an aircraft to pass a waypoint at a predefined time. The CTA concept uses this capability in sequencing arriving traffic to the Terminal Area (TMA) by assigning such fix times to aircraft. CTA and RTA are … Continued

COM 4.4 RTF FREQUENCY USAGE

Other means of communication such as Controller to Pilot Datalink Communications (CPDLC) may present challenges if used in airspace with many time-critical clearances and communications. The current systems are too limited to deal with environments in which the majority of … Continued

Review Policy on CCTV

50TH ANNUAL CONFERENCE, Amman, Jordan, 11-15 April 2011 WP No. 97 Review Policy on CCTV Presented by the Netherlands Summary IFATCA has recently (2007) adopted Policy on visual observation and new aerodrome control service concepts. This Policy consists of a … Continued

Cybersecurity

56TH ANNUAL CONFERENCE, Toronto, Canada, 15-19 May 2017 WP No. 87 Cybersecurity Presented by TOC Summary The use of automation and networking means that cybersecurity needs to be considered. The implementation of cybersecurity has arrived late in aviation but the … Continued

Digitising Flight Progress Strip Displays

55TH ANNUAL CONFERENCE, Las Vegas, USA, 14-18 March 2016 WP No. 160 Digitising Flight Process Strip Displays Presented by TOC Summary The paper-based Flight Progress Strip is an old and venerable tool of our trade, but it is getting to … Continued

Investigate Runway Incursions

45TH ANNUAL CONFERENCE, Kaohsiung, Taiwan, 27-31 March 2006 WP No. 87 Investigate Runway Incursions Presented by PLC and TOC Introduction 1.1 The International Civil Aviation Organisation (ICAO) defines a Runway Incursion as: “Any occurrence at an aerodrome involving the incorrect … Continued

Review Policy on ACAS Phraseology

47TH ANNUAL CONFERENCE, Arusha, Tanzania, 10-14 March 2008 WP No. 95 Review Policy on ACAS Phraseology Presented by TOC Summary On 22nd November 2007, Amendment 5 of ICAO Doc 4444 Air Traffic Management was included. One of the changes with … Continued