The GASP presents some of the key metrics used in its goals, targets and indicators. Some of these concepts are new or represent an evolution from previous metrics used by ICAO to measure safety performance.
Departures data is collated by the ICAO
Air Transport Bureau using a combination of inputs. Estimates are made where data has not been provided by States, otherwise State data and commercial sources are used to obtain the best estimate of the actual number of departures. As new data is provided to ICAO, it is incorporated into the database, which may result in small changes to the calculated rates from year to year. The fatal accident rate is based on accidents that involve one or more fatal injuries using the definition provided in Annex 13.
Statistics and data on accidents and incidents can be found using the
ADREP et al. application available via the ICAO
integrated Safety Trend Analysis and Reporting System.
There are currently about 1000 protocol questions (PQs). Although all the Universal Safety Oversight Audit Programme (USOAP) PQs contribute equally to the effective implementation (EI) score, they do not all equally impact the operational safety risk. For example, those PQs relating to documentation, although important, have a less direct impact to operational safety risk. Some PQs, if found to be unsatisfactory, could have a significant impact on operational safety and could indicate an elevated risk of a significant safety concern (SSC). Many States are finding it a challenge to address a significant proportion of the PQs. Given that these States face difficulty addressing all the PQs, it is worthwhile to give them an indication of which PQs may require closer attention or priority.
The term "priority PQs" refers to PQs that have a higher correlation to operational safety risks. The identification of priority PQs is important so that States can focus their resources accordingly. It should be noted that the whole set of PQs continue to be essential to comprehensively assess the effective implementation of a safety oversight system by a State.
Important note: ICAO is currently in the process of selecting the priority PQs. They will be available shortly.
The full list of SSP foundational PQs can be found using the
SSP Foundation tool available via the ICAO
The safety oversight index of a State is an indicator of its safety oversight capabilities. Every audited State has a safety oversight index. It is a number greater than zero where the number one represents a level at which the safety oversight capabilities of a State would indicate the minimum expected capabilities considering the number of departures, as a proxy to the size of that State's aviation system.
The safety oversight index is a mathematical function comparing a State's effective implementation (EI) score and traffic volume to a safety oversight target EI score which is computed using a global log-linear regression. The safety oversight index will tend to decrease over time if traffic increases and the EI score remains unchanged.
The safety oversight index is broken down into three functional categories:
The safety oversight index is a new concept introduced into the
2020-2022 edition of the GASP and serves as one of several indicators of a State's safety oversight capabilities. States should focus on achieving all of the
GASP goals and targets and continually improve their EI score as part of their responsibilities for the management of safety.
Safety Oversight Indexapplication is available via the ICAO iSTARS .