ATS |

ATS 3.30 TRANSPONDER MANDATORY ZONES

Transponder Mandatory Zones (TMZ), defined areas in which the carriage of an operational transponder is required, have been implemented in several states to improve safety. IFATCA Policy is: All aircraft operating as IFR flights shall be equipped with a pressure-altitude … Continued

ATS 3.29 MERGING AND SEQUENCING CONCEPTS

Due to environmental, economical and operational reasons the need for more accurate merging and sequencing tools has arisen. IFATCA Policy is: IFATCA encourages the development of sequencing and merging tools provided that: They provide controllers with reliable and effective information. … 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

ATS 3.27 SID AND STAR NAMING

The use of SIDs and STARS has grown tremendously in the past decade. Unfortunately, there has been a noticeable lack of standardization and the result pilots face is a confusing mix of local practices. One of these is how the … Continued

ATS 3.26 AIR TRAFFIC FLOW MANAGEMENT – IMPLEMENTATION

IFATCA identified the need for a policy by addressing the requirements of an ATFM system, present and future. IFATCA Policy is: IFATCA encourages the implementation of ATFM processes provided that: The process achieves an optimum overall performance. Air Traffic Controllers … Continued

ATS 3.25 CONTINUOUS DESCENT OPERATIONS (CDO) AND CONTINOUS CLIMB OPERATIONS (CCO)

Recent experience has proven the potential of new arrival procedures known as Continuous Descent Arrivals (CDAs). CDAs enable aircraft to make a more continuous descent from cruise to runway, saving fuel, reducing emissions, and reducing frequency congestion. ANSPs want to … Continued

ATS 3.24 EN-ROUTE RESTRICTIONS

Discrepancy exists between restrictions on SIDs and STARs and restrictions in the en-route environment. It is essential to ensure compatibility and consistency between the TMA environment and en-route procedures. IFATCA Policy is: Published level restrictions remain valid unless explicitly cancelled … Continued

ATS 3.23 INSTRUMENT DEPARTURES AND ARRIVALS

Standard Instrument Departures (SIDs) and Standard Instrument Arrivals (STARs) are published procedures which include route information and may include tracking, level, speed and other requirements and restrictions. SIDs and STARs are becoming increasingly complex and differences in design and phraseologies … Continued

ATS 3.22 MISSED APPROACH PROCEDURES FOR VISUAL APPROACHES

The procedure that an aircraft should follow during a go-around following a visual approach is often not clear to the ATC or the pilot as several options for a missed approach procedure exists. These include the missed approach procedure for … Continued

ATS 3.21 SURVEILLANCE: IN-TRAIL PROCEDURES ITP

IFATCA Provisional Policy is: When using ADS-B ITP, proper mitigation shall be in place to account for misidentification by the pilot due to incorrect input of FlightID. See: WP 85 – Dubrovnik 2009