Perspective for Airport Emissions and Dispersion “Lyon Pilot Study”

Ayce Celikel
Serge Peeters
Marcel Silue

1 Abstract / Summary

The study aims to address strategic, methodological and practical issues surrounding air quality assessment around airports and will provide guidance for airports and practitioners regarding best practice methodology and supporting toolset that can be applied at Pan-European level. The methodology consists of developing Pan-European emission inventory methodology and prepare for the future development of application of dispersion modeling.

This paper provides an overview of why and how we are conducting local air quality studies around airports and describe the methodologies and pilot study used for this purpose. It shows the results achieved during the year 2003 for harmonized emissions inventory methodology and gives indications for the under-going and future work for dispersion modeling.

Topic Area:”F4 Transport and the Environment: Air Quality, Noise and Local Impacts”

Towards Sustainability

Ayce Celikel (MSc)
Alan Melrose (MCILT)
Maud Rotureau (MSc)

Result

Aviation offers major economic and social benefits. However aviation's environmental impact is growing due to high traffic growth. EUROCONTROL predicts that lack of airport capacity is emerging as the major constraint on the European ATM system and it could be argued that environment is the key airport constraint. In response, EUROCONTROL is funding an airport environmental project Environmentally Sustainable Airport Operations (ESAO). The result of the project will be web-based delivery mechanism (SOPHOS) that will be made available free of charge and will help airport stakeholders to improve environmental practice and performance. SOPHOS will provide guidance, practical resources and communications facilities for airport operational stakeholders (Air Navigation Service Providers, Airport Operators and Aircraft Operators). This paper shows the delivery, selection and support of test users, validation, performance assessment of the functionalities implemented in SOPHOS and the results of the ESAO project.

Tarja Kettunen & Jean-Claude Hustache, ISA Software, Paris, France
Ian Fuller, EUROCONTROL Experimental Centre, Bretigny, France
Dan Howell, James Bonn, CNA Corporation, Alexandria, VA
Dave Knorr, Federal Aviation Administration, Washington, DC

Abstract

The paper presents two similar studies carried out in the field of flight efficiency, one by the EUROCONTROL Experimental Centre, one by the FAA.

The studies calculate the excess distances of flights as the difference between the actual flight path length and the direct route length. The results of the EEC study suggest that aircraft fly around 10 percent excess distance compared to direct routes. In the US the inefficiency is around 6 to 8 percent. The cost of flight inefficiency is evaluated.

Tarja Kettunen, ISA Software Ltd.

Extended Abstract

One of the primary constraints to the efficiency of air traffic today and in the foreseeable future is insufficient airport capacity. Previous airport capacity studies have concentrated purely on runway capacity, without looking at the impact of actual operations on the surface, although an increased interest in surface operations can be seen in the Advanced Surface Movement Guidance and Control Systems (A-SMGCS) domain. To truly analyze the gate-to-gate efficiency of any future concept, it is clear that surface operations and the effect of surface-related problems, ultimately measured as delay, need to be incorporated in the macroscopic system-wide view. The predictability of surface operations is also of great interest in the context of trajectory-based management, widely agreed as the ATM strategy of the future. This study, carried out for the United States Federal Aviation Administration (FAA), provides the data from which suitable parameters can be identified to model the influence of surface operations in future operational concept validation experiments.

Ivan de Lépinay, ENVISA, Paris, France
Laurent Cavadini, EUROCONTROL Experimental Centre, Brétigny, France

Extended Abstract

The engine thrust level of aircraft is a key parameter in the assessment of the environmental impact of civil aviation, both on a local and a global scale. Indeed, thrust is used as an input in most of the noise and emissions modelling tools, like the FAA’s Integrated Noise Model (INM) or the EEC’s Advanced Emission Model (AEM). While other input parameters to these models, such as the aircraft position, altitude and speed, can be easily obtained from radar data or flight simulations, information on the aircraft thrust level remain very difficult to find. Hence the necessity to calculate it using a “reverse-engineering” approach, on the basis of the available data (position, altitude and speed).