ATS |

ATS 3.35 TERRAIN AND OBSTACLE CHARTING

Work on SID and STAR phraseology changes and cancellation of level restrictions identified fundamental issues regarding ICAO procedures for terrain and obstacle clearance, primarily whether a restriction is ATC or terrain based. IFATCA Policy is: All published altitude restrictions should … Continued

ATS 3.4 STANDARDISATION OF REGIONAL TRANSITION ALTITUDES

Problems can arise if transition altitudes vary between adjacent FIRs. IFATCA Policy is: Standardisation of transition altitudes on a region wide basis shall be implemented where applicable. See: WP 35 – Nairobi 1987, Resolution B17 – WP 60 – Virtual … Continued

ATS 3.20 ENVIRONMENTAL ISSUES IN ATM

There are several environmental issues in ATM. Aircraft noise and aircraft emissions are the issues that have the greatest impact on efficiency and safety. The normal order of priority in air traffic control is: safety, efficiency and “finally” environmental issues. … Continued

ATS 3.36 EMERGENCY DESCENT PROCEDURES

Existing ICAO recommended practices concerning emergency descent procedures provide guidance to pilots and ATS units in the event of an emergency descent. However, these provisions are outdated. Updates are needed to handle modern scenarios. Proposal was to switch TCAS to … Continued

ATS 3.5 PROVISION OF OPERATIONAL AERONAUTICAL INFORMATION

An air navigation services system requires rapid access to correct current and conclusive data from a common source. In the air traffic control environment such data is often needed immediately in response to urgency or emergency situations. There is too … 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

ATS 3.37 SERVICE PRIORITY

Future demand of increasing capacity will need the introduction of new prioritisation aspects. An example of Service Priority is the “Best-equipped, Best-Served” concept which is emerging as a new tool for the benefits of airspace users. IFATCA Policy is: Service … Continued

ATS 3.6 AIR TRAFFIC FLOW MANAGEMENT – ADHERENCE

The process of Flow Management involves continual monitoring and regulation of the flow of air traffic. The timely implementation of flow management measures and the communication of restrictions to the appropriate controllers are of prime importance, as is the adherence … 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 3.38 FLIGHT PLANNING ACCURACY AND IMPACTS ON THE ATM SYSTEM

Inaccuracies during initial flight planning or insufficient communication regarding changes to existing flight plans can lead to undesirable effects on the ATM system. IFATCA Policy is: Electronic filing and automated conformance checking of flight plans are preferred. Air traffic controllers … Continued