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  1. Capacity
  • Year report
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    • 2020 ✓

  • Portugal
  • Overview
    • Contextual information
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  • Safety
    • PRB monitoring
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  • Environment
    • PRB monitoring
    • En route performance
      • Horizontal flight efficiency
    • Terminal performance
      • AXOT & ASMA
      • CDO
    • CIV-MIL

  • Capacity
    • PRB monitoring
    • En route performance
      • En route ATFM delay
      • Other indicators
    • Terminal performance
      • Arrival ATFM delay
      • Other performance indicators

  • Cost-efficiency
    • PRB monitoring
    • En route CZ
      • Unit cost
      • AUCU
      • Regulatory Result
    • Terminal CZ
      • Unit cost
      • AUCU
      • Regulatory Result

Capacity - Portugal

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PRB monitoring

▪ NAV Portugal registered 0.25 minutes of average en route ATFM delay per flight, thus not achieving the local breakdown value of 0.23.

▪ Delays must be considered in the context of the traffic evolution: IFR movements in 2020 were 59% below the 2019 levels in Portugal.

▪ Portugal reported that delays were generated by the transition to the provisional OPS room, associated works in the main OPS room, and the implementation of social distancing measures, which all reduced the available capacity.

▪ When comparing the first two months of 2020, the traffic was slightly lower than in 2019 (-2%) but en route ATFM delay increased by 38%.

▪ Portugal reported an almost 2% increase in ATCO FTE numbers in 2020 compared to 2019 values but this is still 8% less than planned for 2020.

▪ Portugal reported no rectifying measures to improve capacity performance.

▪ Delays were mostly related to ATC capacity issues and preventive COVID-19 measures.

▪ The share of delayed flights with delays longer than 15 minutes in Portugal decreased by 2.8 p.p. compared to 2019.

▪ The yearly total of sector opening hours in Lisbon ACC was 48,067, showing a 30.5% decrease compared to 2019.

▪ Lisbon ACC registered 5.07 IFR movements per one sector opening hour in 2020, being 42.2% below 2019 levels.

En route performance

En route ATFM delay (KPI#1)

Focus on en route ATFM delay

Summary of capacity performance

The Lisbon FIR experienced a traffic reduction of 59% from 2019 levels, to 267k flights. The traffic level was accommodated with 67k minutes of en route ATFM delays to airspace users. Practically all delays occurred between January and March: 45% of delays were attributed to “Other” or “Special Event” and another 40% were attributed to ATC capacity.

NSA’s assessment of capacity performance

ATFM en route delay was impacted by two events in 2020. The transition to the provisional ops room, due to works in the main room, and in March the implementation of segregation measures due to COVID19, with the consequent reduction of available capacity during this period. Although for the remainder of the year, en-route delays were at zero, the significant traffic reduction did not allow the total delays to be diluted in accordance with the target set

Monitoring process for capacity performance

NAV Portugal and ANAC have a quarterly monitoring process of the Performance Indicators.

Capacity planning

Due to COVID 19, priority was given to the deployment and training of the new ATM system to be operational during Q1 of 2022, since at this stage there are no capacity constrains foreseen at En route level.

Application of Corrective Measures for Capacity (if applicable)

On what concerns Capacity and en-route delay, the actual value was 0,25 min/flight and the objective was 0,23 min/flight (+0,02) caused by a transition to the operation room and due to staff segregation measures caused by COVID 19. The last 9 months of 2020 had almost zero minutes of delay, However as the levels of traffic were very low, it was not possible to dilute the performance of the first quarter.

Considering the reasons for the non-compliance no recommendations were made.

Other indicators

Focus on ATCOs in operations

Terminal performance

Arrival ATFM delay (KPI#2)

Focus on arrival ATFM delay

The scope of RP3 monitoring for Portugal comprises 10 airports in 2020, However, in accordance with IR (EU) 2019/317 and the traffic figures, only two of these airports (Lisbon (LPPT) and Porto (LPPR)) must be monitored for pre-departure delays.
The Airport Operator Data Flow, necessary for the monitoring of these pre-departure delays, is correctly established where required and the monitoring of all capacity indicators can be performed. Nevertheless, the quality of the reporting from Porto does not allow for the calculation of the ATC pre-departure delay, with more than 60% of the reported delay not allocated to any cause.
Traffic at these 10 airports, that had increased considerably during RP2, decreased in 2020 by 56% with respect to 2019. In line with this drop in traffic, arrival ATFM delays decreased by 65% with respect to 2019 and were observed only at the two main airports Lisbon and Porto. Slot adherence at national level was 95.3%.

The national average arrival ATFM delay at Portuguese airports in 2020 was 0.97 min/arr, significantly lower than the 2.76 min/arr in 2019 (-65%)
At airport level, only Lisbon and Porto registered delays. Most delays took place in the first trimester of the year, but despite the drastic reduction in traffic, ATFM delays were also present during the rest of the year.
Lisbon (LPPT; 2019: 4.13 min/arr; 2020: 1.72 min/arr) showed the second highest ATFM delays in the SES area. 49% of these delays were attributed to weather, 26% to airspace management issues and 18% to aerodrome capacity.
At Porto (LPPR; 2019: 3.09 min/arr; 2020: 0.77 min/arr) delays were attributed to weather (89%), aerodrome capacity (10%) and ATC staffing (1%)

The provisional national target on arrival ATFM delay in 2020 was met.

In accordance with Article 3 (3) (a) of Implementing Regulation (EU) 2020/1627: The incentive scheme shall cover only the calendar years 2022 to 2024.

Other terminal performance indicators (PI#1-3)

Airport level
Airport name
Avg arrival ATFM delay (KPI#2)
Slot adherence (PI#1)
ATC pre departure delay (PI#2)
All causes pre departure delay (PI#3)
2020 2021 2022 2023 2020 2021 2022 2023 2020 2021 2022 2023 2020 2021 2022 2023
Cascais NA NA NA NA 82.6% NA% NA% NA% NA NA NA NA NA NA NA NA
Faro 0.00 NA NA NA 95.8% NA% NA% NA% 0.09 NA NA NA 8.2 NA NA NA
Horta NA NA NA NA 93.8% NA% NA% NA% NA NA NA NA NA NA NA NA
Lisbon 1.72 NA NA NA 96.5% NA% NA% NA% 2.14 NA NA NA 12.0 NA NA NA
Madeira NA NA NA NA 93.2% NA% NA% NA% NA NA NA NA NA NA NA NA
Montijo NA NA NA NA 0.0% NA% NA% NA% NA NA NA NA NA NA NA NA
Ponta Delgada NA NA NA NA 98.2% NA% NA% NA% NA NA NA NA NA NA NA NA
Porto 0.77 NA NA NA 93.4% NA% NA% NA% 0.26 NA NA NA 9.2 NA NA NA
Porto Santo NA NA NA NA 92.9% NA% NA% NA% NA NA NA NA NA NA NA NA
Santa Maria NA NA NA NA 100.0% NA% NA% NA% NA NA NA NA NA NA NA NA
Focus on performance indicators at airport level

ATFM slot adherence

With the drastic drop in traffic, the share of regulated departures from Portuguese airports virtually disappeared as of April. The annual figures are therefore driven by the performance in the first trimester.
Most Portuguese airports showed adherence above 90% with the exception of Cascais (LPCS) that ranged just above the required compliance threshold of 80%. Nevertheless this lower adherence corresponds to only 8 departures outside of the STW in 2020.
The national average was 95.3%. With regard to the 4.7% of flights that did not adhere, 3.5% was early and 1.2% was late.

ATC pre-departure delay

The performance at Lisbon, the only Portuguese airport where this indicator can be calculated has notably improved with respect to the previous year (LPPT; 2019: 4.16 min/dep.; 2020: 2.13 min/dep.) but this delay is still the highest in the SES area.
The quality of the airport data reported by Porto was too low, preventing the calculation of this indicator for this airport.

The calculation of the ATC pre-departure delay is based on the data provided by the airport operators through the Airport Operator Data Flow (APDF) which is properly implemented at both Porto and Lisbon.
However, there are several quality checks before EUROCONTROL can produce the final value which is established as the average minutes of pre-departure delay (delay in the actual off block time) associated to the IATA delay code 89 (through the APDF, for each delayed flight, the reasons for that delay have to be transmitted and coded according to IATA delay codes.
However, sometimes the airport operator has no information concerning the reasons for the delay in the off block, or they cannot convert the reasons to the IATA delay codes. In those cases, the airport operator might:
- Not report any information about the reasons for the delay for that flight (unreported delay)
- Report a special code to indicate they do not have the information (code ZZZ)
- Report a special code to indicate they do not have the means to collect and/or translate the information (code 999)
To be able to calculate with a minimum of accuracy the PI for a given month, the minutes of delay that are not attributed to any IATA code reason should not exceed 40% of the total minutes of pre-departure delay observed at the airport.
Finally, to be able to produce the annual figure, at least 10 months of valid data is requested by EUROCONTROL.

The share of unidentified delay reported by Porto was above 40% for 5 months in 2020, preventing the annual calculation of this indicator. Porto usually has proper reporting.

All causes pre-departure delay

The total (all causes) delay in the actual off block time at the two Portuguese airports monitored for this indicator in 2020 was 12.02 min/dep for Lisbon (LPPT) and 9.15 min/dep. for Porto (LPPR).
High delays per flight at both airports were observed in the second trimester of the year, due to the lower traffic and extraordinary circumstances. At Lisbon the highest delays in the year took place in January, averaging more than 20 min/dep.
This performance indicator has been introduced in the performance scheme for the first time this year, so no evolution with respect to 2019 can be analysed.

 
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