European Route Network Improvement Plan (ERNIP) - Monitoring Report - AIRAC 2003

ERNIP Monthly report cover
ERNIP monitoring report background image

Our monthly European route network implementation plan (ERNIP) monitoring report provides an overview of the airspace design improvements applied by States during the past AIRAC cycle and an analysis of their potential and real world effects.

Highlights for AIRAC 2003


airspace improvement measures in AIRAC 2003 coordinated with the EUROCONTROL Network Manager


implementing entities

Potential savings

The improvement measures implemented since AIRAC 2003  could have led to:

45,000 NMs

flown less on shortest available route

270 tonnes

less fuel used

900 tons

less CO2 emitted



Real-world performance

Based on our filed flight plan indicator, the actual situation during AIRAC 2003 was:

447,000 NMs

flown more compared to shortest available route

2,682 tonnes

more fuel used

8,940 tons

more CO2 emitted



Key reasons

Potential causes having an impact on flight planning/ airline choices: 

  • Geopolitical (Ukraine, Libya and Syria);
  • Regulations due to capacity/ staffing problems in the network;
  • Traffic composition/ demand;
  • Industrial action;
  • Weather (several key ANSPs were affected by traffic re-routing);
  • Financial (fluctuation of route charges over Europe).
  • Staffing issues attributed to constraints associated with the COVID-19 pandemic across a number of Spanish ACCs (Palma, Sevilla, Madrid, Barcelona, Canarias), in Lisboa ACC, Paris ACC and Brest ACC required regulations, with impact on flight planning route extension.

Note: Aircraft Operators adjusted their schedules in reaction to COVID-19 and in reaction to State-implemented travel restrictions, resulting in a significant decrease of flights operated in the NM area (more than 20,000 fewer flights daily compared to 2019).

For more details, download our monitoring report.


Monitoring Report - AIRAC 2003