This paper reports the results of a large scale, detailed acoustic survey of 42 open plan classrooms of varying design in the UK each of which contained between 2 and 14 teaching areas or classbases. The objective survey procedure, which was designed specifically for use in open plan classrooms, is described. The acoustic measurements relating to speech intelligibility within a classbase, including ambient noise level, intrusive noise level, speech to noise ratio, speech transmission index, and reverberation time, are presented. The effects on speech intelligibility of critical physical design variables, such as the number of classbases within an open plan unit and the selection of acoustic finishes for control of reverberation, are examined. This analysis enables limitations of open plan classrooms to be discussed and acoustic design guidelines to be developed to ensure good listening conditions. The types of teaching activity to provide adequate acoustic conditions, plus the speech intelligibility requirements of younger children, are also discussed.
REFERENCES
1.
Department for Education and Skills
, Schools for the Future—Exemplar Designs: Concepts and Ideas
(Department for Education and Skills
, London, UK
, 2003
).2.
A.
Mikkelsen
, “Hellerup School—A novel teaching paradigm in Denmark
,” in Proceedings of International Congress for School Effectiveness and Improvement (ISCEI)
, Sydney, Australia (2003
). Available online at http://www.ankermikkelsen.dk/dokumenter/ICSEI%202003II.doc (Last viewed 1/17/11).3.
M.
Jones
, “Small learning groups revive the open classroom
,” School Construction News Online
,. Emlen Media
, San Rafael, USA (2005
). Available online at http://www.schoolconstructionnews.com/articles/2005/12/9/small-learning-groups-revive-the-open-classroom (Last viewed 3/11/11).4.
The Space for Personalised Learning Process Guide. Available online at http://www.space4pl.org/index.php/home/processs-new (Last viewed 3/11/10).
5.
Department for Children, Schools and Families
, Project Faraday Exemplar Designs for Science
(DCSF Publications
, London, UK
, 2008
).6.
E.
Greenland
, “Acoustics of open plan classrooms in primary schools
,” Ph.D. thesis, London South Bank University
, London, UK, 2009
.7.
S.
Maclure
, Educational Development and School Building: Aspects of Public Policy 1945-73
(Longman Group Ltd
, Essex, UK
, 1984
).8.
Department of Education and Science
, Building Bulletin No 3: Village Schools
(Her Majesty’s Stationery Office
, London
, 1961
).9.
N.
Bennett
, J.
Andreae
, P.
Hegarty
, and B.
Wade
, Open Plan Schools: Teaching, Curriculum and Design
(Schools Council Publications, National Foundation for Educational Research Publishing Company Ltd
, Windsor, UK
, 1980
).10.
D. P.
Walsh
, “Noise levels and annoyance in open plan educational facilities
,” J. Archit. Res.
4
(2
), 5
–16
(1975
).11.
12.
National Union of Teachers
, Open planning with Special Reference to Primary Schools
(National Union of Teachers Publications
, England
, 1975
).13.
J.
Rothenberg
, “The open classroom reconsidered
,” Elem. Sch. J.
90
(1
), 69
–85
(1989
). 14.
Building Futures. 21st Century Schools: Learning Environments of the Future
(Commission for Architecture and the Built Environment and Royal Institute of British Architecture
, London
, 2004
).15.
16.
B. M.
Shield
, E.
Greenland
, and J.
Dockrell
, “Noise in open plan classrooms in primary schools: A review
,” Noise Health
12
(49
), 225
–234
(2010
). 17.
B. L.
Kyzar
, “Comparison of instructional practices in classrooms of different design. Final Report
,” Northwestern State University
, IL
, 1971
.18.
H.
Kingsbury
and D.
Taylor
, “Acoustical conditions in open plan classrooms
,” Sound Vib.
4
, 19
–24
(1970
).19.
California State Department of Education
, School Sound Level Study
(CA State Department of Education
, Sacramento
, 1986
).20.
J. F.
Yerges
and J. G.
Bollinger
, “Development and utilization of open plan educational facilities
,” Sound Vib.
6
, 19
–24
(1972
).21.
H.
Kingsbury
, “Acoustics in the changing classroom
,” Educ Technol.
13
(3
), 62
–64
(1973
).22.
B.
Schellenberg
, Noise and Sound Control in Open Plan Schools
(U.S. Dept. of Health Education and Welfare
, 1975
). Available online at http://www.eric.ed.gov/PDFS/ED109801.pdf (Last viewed 3/7/11).23.
C.
Weinstein
, “Noise and reading performance in an open space school
,” J. Educ. Res.
72
, 210
–213
(1977
).24.
British Standards Institute
, BS EN IEC 60268-16-2003, Sound System Equipment Part 16: Objective Rating of Speech Intelligibility by Speech Transmission Index
(British Standards Institute
, London
, 2003
).25.
W.
Yang
and J. S.
Bradley
, “Effects of room acoustics on the intelligibility of speech in classrooms for young children
,” J. Acoust. Soc. Am.
125
, 922
–933
(2009
). 26.
J. S.
Bradley
, Optimising Sound Quality for Classrooms NRC-45999
(Institute for Research and Construction
, National Research Council Canada
, 2002
).27.
J. S.
Bradley
and H.
Sato
, “The intelligibility of speech in elementary school classrooms
,” J. Acoust. Soc. Am.
123
, 2078
–2086
(2008
). 28.
ANSI/ASA 12.60-2009/Part 1
: American National Standard Acoustical Performance Criteria, Design Requirements and Guidelines for Schools, Part 1; Permanent Schools
(Acoustical Society of America
, New York
, 2009
).29.
S. D.
Soli
and J. A.
Sullivan
, “Factors affecting children’s speech communication in classroom
,” J. Acoust. Soc. Am.
101
, S3070
(1997
). 30.
D. G.
Jamieson
, G.
Kranjc
, K.
Yu
, and W. E.
Hodgetts
, “Speech intelligibility of young school age children in the presence of real life classroom noise
,” J. Am. Acad. Audiol.
15
, 508
–517
(2004
). 31.
H.
Sato
, J. S.
Bradley
, and M.
Morimoto
, “Using listening difficulty ratings of conditions for speech communication in rooms
,” J. Acoust. Soc. Am.
117
, 1157
–1167
(2004
). 32.
E.
Boligstyrelsen
, Vejledning om lydforhold i undervisnings-og daginstitutionsbyggeri (Guidance on Acoustics in Teaching and Day-Care Centre Construction)
(Danish Enterprise and Construction Authority, 2004
). Available online at http://www.ebst.dk/file/1920/vejledning_om_lydforhold_institutioner.pdf (Last viewed 3/23/11).33.
SS 25268:2007: Acoustics—Sound Classification of Spaces in Buildings—Institutional Premises, Rooms for Education, Preschools and Leisure-Time Centres, Rooms for Office Work and Hotels (Swedish Standards Institute,
2007
).34.
Department for Education and Skills
, Building Bulletin 93 – Acoustic Design of Schools
(TSO
, London
, 2003
).35.
E.
Greenland
and B. M.
Shield
, “Speech intelligibility measurements in open plan classrooms
,” Proc. Inst. Acoust.
31
(8
) (2007
).36.
B.
Shield
and J.
Dockrell
, “External and internal noise surveys of London primary schools
,” J. Acoust. Soc. Am.
115
, 730
–738
(2004
). 37.
J.
Edwards
, “The classroom is a microcosm of the world
,” in Children’s Spaces
, edited by M.
Dudek
(Architectural Press
, Oxford, UK
, 2005
), pp. 66
–100
.38.
P.
Kutnick
, P.
Blatchford
, and E.
Baines
, “Pupil groupings in primary schools classrooms: sites for learning and social pedagogy?”
Br. Educ. Res. J.
28
(2
), 187
–206
(2002
). 39.
J.
Pake
, W.
Harlen
, and J.
Powney
, “Teachers’ and pupils’ days in the primary classroom
,” SCRE Research Report No. 93, Scottish Council for Research in Education
, University of Glasgow
, Glasgow, UK
, (1999
).40.
J.
Steeneken
and T.
Houtgast
, “A physical method for measuring speech-transmission quality
,” J. Acoust. Soc. Am.
67
, 318
–325
(1980
). 41.
ANSI 3.5-1997
: Methods for Calculation of the Speech Intelligibility Index
(Acoustical Society of America
, New York
, 1997
).42.
P.
Mapp
, “Measuring speech intelligibility in classrooms, with and without hearing assistance
,” Proc. Inst. Acoust.
25
(7
), 156
–160
(2003
).43.
J. S.
Bradley
, “Speech intelligibility studies in classrooms
,” J. Acoust. Soc. Am.
80
, 846
–854
(1986
). 44.
ISO 3382-2000
: Measurement of reverberation time with reference to other room acoustical parameters
(International Standards Organization
, 2000
).45.
J.S.
Bradley
, R.D.
Reich
, and S.G.
Norcross
, “A just noticeable difference in C50 for speech
,” Appl. Acoust.
58
, 99
–108
(1999
). 46.
J. S.
Bradley
, “Relationships among measures for speech intelligibility in rooms
,” J. Audio Eng. Soc.
46
(5
), 396
–404
(1998
).47.
B. M.
Shield
, E.
Greenland
, J. E.
Dockrell
and K.
Rigby
, “Children’s perceptions of speech and hearing in open plan and enclosed classrooms
,” Proc. Inst. Acoust.
30
(1
) (2008
).© 2011 Acoustical Society of America.
2011
Acoustical Society of America
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