AMC5 Safety performance indicator (SPI) for monitoring ATFM over-deliveries

• found in: SKPI (2019/317) Safety Key Performance Indicators (Dec 2020)

AMC5 Safety performance indicator (SPI) for monitoring ATFM over-deliveries Regulation (EU) 2019/317 At ATC sector level, the ATFM over-deliveries (OVD) safety performance indicator should be calculated as the ratio of 20-minute slices with over-delivery aircraft in the ATFM regulated sector versus the total number of 20-minunte slices during the ATFM regulated duration. To determine whether an hourly slice is over-delivered, the number of actual flight entries in the regulated sector (NB\_FLT\_ACTUAL) should be compared with the regulated flight rate for the same time interval (REG\_RATE) that is imposed in the ATFM regulation. When the actual entries are above 110 % of the regulated rate, then the slice should be considered over-delivered. The definition should exclude the regulation with a zero rate (e.g. airspace closures) as it makes the comparison meaningless. The Network Manager (NM) should report to EASA at the beginning of the application period and subsequently, on an annual basis, the OVD SPI aggregated at each ACC and SES areas. The time interval to monitor is each entire year. To aggregate the OVD SPI for the combination of geographical area and yearly interval, the total number of slices with over-delivery are divided by the total number of slices for the regulations within the reporting scope.