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Description
StrategicObjective
  
  
Rationale
Limitations
Calculation
  
37Attachment
  
1.001

​A measure of the State’s safety oversight capability and an indication of a State’s degree of compliance with ICAO provisions. It is measured through ICAO’s Universal Safety Oversight Audit Programme (USOAP) and calculated for each critical element, audit area or as an overall measure. It is expressed as a percentage.

Aviation SafetyActivity-related (Predictive or Leading)
​Compliance to ICAO’s international standards is the key to safe aviation activities in States.
The indicator covers ICAO Member States that have undergone a USOAP CMA audits. It also measures a sampling of ICAO’s SARPs.

 

 
01.Surveillance Activities
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1.002

​Number of inspections conducted on the runways; includes inspection of the runway lights, signs and markings, vegetation, obstruction of signs, runway surface condition, etc.

Aviation SafetyActivity-related (Predictive or Leading)

​Inspections are important as they allow early detection of non-compliances. The indicator helps assess the effective implementation of runway inspections schedule within the organization.

​N/A

​N/A

01.Surveillance Activities
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1.101

​Number of accidents per 1,000,000 flights.

Aviation SafetyOutcome-related (Reactive or Lagging)

​The accident rate is an overall indicator of safety performance.

​Limitations may be introduced depending on the availability of traffic data. May only be applicable to States or regions with high traffic (with 1,000,000 flights in a given period).

​N/A

02.Occurrences
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1.102

​Number of accidents as defined in ICAO Annex 13 to the Chicago Convention.

Aviation SafetyOutcome-related (Reactive or Lagging)

​Number of accidents is an overall indicator of safety performance.

​N/A

​N/A

02.Occurrences
39Attachment
  
1.103

​Number of fatalities per 1,000,000,000 passengers.

Aviation SafetyOutcome-related (Reactive or Lagging)

​The fatality rate provides an overall indicator of safety performance.

​Limitations may be introduced depending on the availability of passenger data. May only be applicable to States or regions with high traffic.

​N/A

02.Occurrences
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1.104

​Number of fatalities in the aircraft or on the ground as a result of an accident.

Aviation SafetyOutcome-related (Reactive or Lagging)

​Number of fatalities provides an overall indicator of safety performance.

​N/A

​N/A

02.Occurrences
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1.201

​Number of occurrences related to runway safety, including excursions, incursions, abnormal runway contact (ARC), undershoot, overshoot, foreign object damage (FOD).

Aviation SafetyOutcome-related (Reactive or Lagging)

​Number of runway safety occurrences provides an overall indicator of safety performance.

​Limitations may be introduced depending on the availability of voluntary reporting data.

​N/A

03.Runway Safety
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1.202

​Number of occurrences related to wildlife strikes, such as birds and other species by occurrence class and in various flight phases.

Aviation SafetyOutcome-related (Reactive or Lagging)

​Number of wildlife strikes provides an overall indicator of safety performance.

​Limitations may be introduced depending on the availability of voluntary reporting data.

​N/A

03.Runway Safety
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1.204

Percentage of landings over 1000 feet from threshold.

Aviation SafetyOutcome-related (Reactive or Lagging)

​This indicator helps measure the risk of runway safety occurrences.

​This indicator is applicable only when both the aircraft and the airport are equipped and covered by automatic dependent surveillance – broadcast (ADS-B).

​N/A

03.Runway Safety
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1.205

​Percentage of landings where the tailwind exceeded 5, 10 or 15 knots (kts).

Aviation SafetyOutcome-related (Reactive or Lagging)

​Tailwind landings increase the risk of a runway excursion. The ground speed at touchdown will be greater than usual and any float tendency will result in a long landing. The increased stopping distance could result in a runway overrun (excursions).

​This indicator is applicable only when both the aircraft and the airport are equipped and covered by automatic dependent surveillance – broadcast (ADS-B).

Tailwind component tailwind = wind speed in kts x cos (wind direction – runway direction)

03.Runway Safety
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1.206

​Percentage of landings with less than 3000 ft runway remaining at 60 knots (kts).

Aviation SafetyOutcome-related (Reactive or Lagging)

​This indicator helps measure the risk of runway safety occurrences.

​This indicator is applicable only when both the aircraft and the airport are equipped and covered by automatic dependent surveillance – broadcast (ADS-B).

​Runway remaining = (number of landings with less than 3000 ft runway remaining at 60 kts / total number of landings) x 100

03.Runway Safety
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1.303

​Number of loss of separations between IFR flights.

Aviation SafetyOutcome-related (Reactive or Lagging)

​A primary responsibility of an ANSP is to provide separation between IFR aircraft. As such, IFR-IFR losses of separation (IFR-IFR LOS) are one of the most critical safety issues under analysis on a global scale.

​Reporting methods (automatic or manual) and the way they are utilized are different across ANSPs.
Attribution of IFR-IFR LOS to ATM Ground versus ATM Airborne is not consistent.

​See attached indicator form (reference) below.

04.Airspace
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1.304

​Number of LHDs occurring when an aircraft overshoots its target level by more than 300 ft.

Aviation SafetyOutcome-related (Reactive or Lagging)

​This indicator helps identify and classify LHDs in order to assess vertical collision risk due to lack of RVSM height keeping performance. System performance monitoring is necessary to ensure that the continued operation of RVSM meets safety objectives.

​This indicator is only applicable in Reduced Vertical Separation Minimum (RVSM) airspace.
Also, aircrafts must be equipped with automatic dependent surveillance broadcast (ADS-B) transmitter or a quick access recorder (QAR).

​N/A

04.Airspace
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1.305

​Number of TCAS alerts issued by advisory type.

Aviation SafetyOutcome-related (Reactive or Lagging)

​TCAS alerts indicate potential loss of separation and the risk of midair collision.

​This indicator is applicable only to aircraft/fleet equipped with TCAS.

​N/A

04.Airspace
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1.306

​Number of flights with emergency transponder squawk codes detected.

Aviation SafetyOutcome-related (Reactive or Lagging)

​Emergencies are generally declared when an incident occurs during flight. Counting them is an indicator of safety.

​N/A

​N/A

04.Airspace
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1.401

​Percentage of missed approaches.

Aviation SafetyActivity-related (Predictive or Leading)

​This indicator helps measure the risk of runway safety occurrences.

​Aircrafts must be equipped with automatic dependent surveillance broadcast (ADS-B) transmitter or a quick access recorder (QAR).

​Missed approaches = (number of missed approaches / total number of approaches) x 100

05.Approach
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1.403

​Number of EGPWS alert events.

Aviation SafetyOutcome-related (Reactive or Lagging)

​EGPWS alerts indicate potential risk of collision with terrain.

​This indicator is applicable only to aircraft/fleet equipped with EGPWS.

​N/A

05.Approach
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1.501

​Percentage of ramp inspections in a given period that resulted in no findings.

Aviation SafetyActivity-related (Predictive or Leading)

​The purpose of a ramp inspection is to control safety aspects of an operation. A large number of inspections may not generate any findings. However, if the percentage of clean inspections (i.e. inspections without any findings) becomes too high, this may indicate a problem in the conduct or scope of inspection activities.

​N/A

​(Number of inspections with no findings / total number of inspections) x 100

06.Ramp Inspection
56Attachment
  
1.502

​Number of finding vs the number of inspections.

Aviation SafetyActivity-related (Predictive or Leading)

​Findings raised during a ramp inspection indicate a safety concern. Since more inspections would be expected to generate more findings, therefore, a ratio of findings (instead of just the number of inspections) would be a more appropriate indicator for comparison.

​N/A

​(Total number of findings / total number of inspections) x 100

06.Ramp Inspection
46Attachment
  
2.301

​Percentage of great circle distance vs total distance flown from the entry point to the exit point within an airspace.

Air Navigation Capacity and EfficiencyActivity-related (Predictive or Leading)

​This indicator allows measuring and optimization of flight efficiency in terms of achieved distance in flight which in turn reduces cost and emissions.

​Aircrafts must be equipped with automatic dependent surveillance broadcast (ADS-B) transmitter.

​HFE (local) =  (NX in km / total distance flown in km) x 100

 

NX: distance between the entry point and the exit point within the airspace

04.Airspace
47Attachment
  
2.302

​Percentage of distance achieved vs total distance flown within an airspace.

Air Navigation Capacity and EfficiencyActivity-related (Predictive or Leading)

​This indicator allows measuring and optimization of flight efficiency in terms of achieved distance in flight which in turn reduces cost and emissions.

​Aircrafts must be equipped with automatic dependent surveillance broadcast (ADS-B) transmitter.

HFE (local) = [|ND – XD| in km / total distance flown in km] x 100

 

ND: great circle distance from the entry point N to the destination D
XD: great circle distance from the exit point X to the destination D

04.Airspace
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2.402

​Percentage of continuous descent vs total descent distance flown.

Air Navigation Capacity and EfficiencyActivity-related (Predictive or Leading)

​This indicator allows measuring and optimization of vertical flight efficiency during the descent phase which in turn reduces cost and emissions.

​Aircrafts must be equipped with automatic dependent surveillance broadcast (ADS-B) transmitter.

​CDO = (sum of all distances flown in CDO in km / total descent distance flown in km) x 100

05.Approach