European Route Network Improvement Plan (ERNIP) - Monitoring Report - AIRAC 1912

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 1912


airspace improvement measures in AIRAC 1912 coordinated with the EUROCONTROL Network Manager


implementing entities

Potential savings

The improvement measures implemented since AIRAC 1812 could have led to:

228,000 NMs

flown less on shortest available route

1.368 tonnes

less fuel used

4,560 tons

less CO2 emitted



Real-world performance

Based on our filed flight plan indicator, the actual situation during AIRAC 1912 was:

298,000 NMs

flown more compared to shortest available route

1,788 tonnes

more fuel used

5,960 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).

For more details, download our monitoring report.


Monitoring Report - AIRAC 1912