Acoustical comfort evaluation in enclosed public spaces with a central atrium : a case study in food court of CEPA Shopping Center, Ankara
Dökmeci, Papatya Nur
- Publisher: Bilkent University
acoustic comfort | food court | public spaces | central atrium | noise annoyance | Food Court | acoustical parameters | NA2800 .D65 2009 | Architectural acoustics. | Public buildings. | Shopping malls--Design and construction. | Public spaces--Planning.
Ankara : The Department of Interior Architecture and Environmental Design and the Institute of Economics and Social Sciences of Bilkent University, 2009.
Thesis (Master's) -- Bilkent University, 2009.
Includes bibliographical references leaves 79-83.
Physical comfort requirements of users as thermal, visual, and acoustic comfort
should be considered and studied in detail when designing and planning public
spaces. The subjective auditory perception needs to be evaluated parallel with the
objective acoustical incidences in a space. The food court area of CEPA Shopping
Center with an atrium and a glass dome ceiling, in the capital city of Turkey,
Ankara is chosen for the case. The aim of this study is to investigate acoustical
parameters of the space via computer simulation program and examine the effect
of architectural features of the space namely; central atrium, glass dome and the
existing material applications. Considering the relationship between the users’
noise annoyance and the equivalent continuous sound pressure level (Leq) is also
intended in this study. The research techniques are computer simulations, noise
measurements and questionnaires. Acoustical parameters; reverberation time
(RT), early decay time (EDT), sound transmission index (STI) and equivalent
continuous sound pressure level (Leq) values are obtained by simulations and
measurements. Questionnaires are used for understanding the noise annoyance
and auditory perception of the users. The results show that the noise annoyance
ratings correlate well with the Leq variances. The most dominantly perceived and
the most annoying sound found to be correlated with the highest percentage for
speech noise in the food court. Decay time (T30, EDT) results of the space that are
derived from the ODEON 6.5 software are found to be very long as expected with
a central atrium, glass dome ceiling and highly reflected material applications. In
addition, the food court area is defined to be poor in terms of STI. High Leq values
as well as long decay times that are present in the space are noted as factors
increasing the noise annoyance of the users.
Dökmeci, Papatya Nur