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Tomislav Mihetec - University of Zagreb, Faculty of Transport & Traffic Sciences, Vukelićeva 4, 10000 Zagreb, Croatia -

Denis Odić - EUROCONTROL, Route Network and Airspace Structures Development - Airspace Design and Analysis, Brussels, Belgium -

Sanja Steiner - University of Zagreb, Faculty of Transport & Traffic Sciences, Vukelićeva 4, 10000 Zagreb, Croatia -


There are many different concepts and definitions for the flight efficiency, where every stakeholder involved in air transport has its own perception on flight efficiency. Flight efficiency concept is based on trade-offs between safety, airspace capacity, fuel consumption, flying distance, time distance, time cost, fuel cost etc. Flight time and flying distance which has impact to fuel burn and operation costs to airspace users are mainly generated by deviations from the optimum trajectories. According to the Performance Review Commission (PRC) Report in 2009 average en-route extension in Europe was 47.6 km, with the year on year improvement of 1.2 km. The PRC Report emphasized that there is constant increase of medium/long haul flights operated by aircraft operators in Europe while short haul flights are decreasing. One of the issues, concerning flight efficiency in Europe, is that aircraft operators are not using night routes sufficient during flight planning process. This paper is presenting flight efficiency for the traffic demand using night route network and not using it at all. Flight inefficiency is expresses by the agreed performance indicators: distance difference (NM), duration difference (min), fuel combustion difference (kg) and CO2 emission (t) environmental indicator.

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EUROCONTROL Experimental Centre, 2002. ATM Flight Efficiency and its Impact on the Environment. France. 71 p.


EUROCONTROL Performance Review Commission, 2004. Evaluating the true cost to airlines of one minute of airborne or ground delay. Prepared by the University of Westminster, Brussels, Belgium. 260 p.


EUROCONTROL Route Network Development Sub-Group, 2010. ARN Version – 7, Concept of Operations. Brussels, Belgium. 199 p.


EUROCONTROL STATFOR, 2011. Long-Term Forecast, Flight Movements 2010 – 2030. Brussels. 63 p.


Steiner, S.; Božičević, A.; Mihetec, T. 2008. Determinants of European Air Traffic Development, Transport Problems International Scientific Journal. 3(4): 73-85.


Steiner, S.; Mihetec, T; Božičević, A. 2010. Prospects of Air Traffic Management in South Eastern Europe, Traffic and Transportation, Scientific Journal on Traffic and Transportation Research. 22(4): 293-303.

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