Queen Alia International Airport

 

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Year: 2008
Client:  Joannou & Paraskevaides (Overseas) Ltd.
Architect: Foster + Partners, London
Services: Room-acoustic consulting

A new Terminal is currently being constructed on the Queen Alia International Airport in Amman (Jordan) and will be opened in 2011.
The award-winning design of Foster + Partners (London) features dome-shaped ceiling segments for the building, requiring a careful and sophisticated room-acoustic design process which could not be based on statistical calculations.

Rahe-Kraft was appointed by the main contractor J&P to study the room-acoustic situation especially to evaluate potential flutter echoes and suggest proper absorption materials while maintaing the shape and appearance of the ceiling.

Since literature does not offer any useful acoustic parameter to evaluate flutter echoes and the degree of disturbance is very subjective, we generated impulse responses with new prediction technology for different cases.

This method allowed us to offer both our client and the architect subjective listening experiences by means of auralisation in the unfinished building for different ceiling materials.

The resulting recommended minimum absorption coefficients for ceiling materials will both eliminate flutter echoes and lower reverberation timereverberation timeRT60 is the time required for reflections of a direct sound to decay by 60 dB below the level of the direct sound….

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to comfortable values. The overall acoustic environment will also allow excellent speech intelligibility for the future public address system.

The building is currently under construction and will open in 2011.