Attenuation
Attenuation refers to a reduction in force, effect, or value. Attenuation may be achieved by an attenuator.
The SuDS Manual published by CIRIA in 2015 defines attenuation as: ‘Reduction of peak flow rate and increased duration of a flow event.’ It defines attenuation storage as: ‘Volume in which runoff is stored when the inflow to the storage is greater than the controlled outflow.’
Culvert, screen and outfall manual, (CIRIA C786) published by CIRIA in 2019, defines attenuation as the: ‘Reduction in the peak discharge of a flood as it passes down river due to storage or constrictions.’
The term ‘attenuation’ is also used in the construction industry to refer to the reduction of the transmission of sound, typically in ductwork, doors or other elements that pass from one area to another. It can also refer to wave attenuators, pressure attenuators in ventilation piping and so on.
[edit] Related articles on Designing Buildings
Featured articles and news
Cladding remediation programmes, transparency and target date.
National Audit Office issue report on cladding remediation.
HBPT and BEAMS Jubilees. Book review.
Does the first Labour budget deliver for the built environment?
What does the UK Budget mean for electrical contractors?
Mixed response as business pays, are there silver linings?
A brownfield housing boost for Liverpool
A 56 million investment from Homes England now approved.
Fostering a future-ready workforce through collaboration
Collaborative Futures: Competence, Capability and Capacity, published and available for download.
Considerate Constructors Scheme acquires Building A Safer Future
Acquisition defines a new era for safety in construction.
AT Awards evening 2024; the winners and finalists
Recognising professionals with outstanding achievements.
Reactions to the Autumn Budget announcement
And key elements of the quoted budget to rebuild Britain.
Chancellor of the Exchequer delivers Budget
Repairing, fixing, rebuilding, protecting and strengthening.
Expectation management in building design
Interest, management, occupant satisfaction and the performance gap.
Connecting conservation research and practice with IHBC
State of the art heritage research & practice and guidance.
Innovative Silica Safety Toolkit
Receives funding boost in memory of construction visionary.
Gentle density and the current context of planning changes
How should designers deliver it now as it appears in NPPF.
Sustainable Futures. Redefining Retrofit for Net Zero Living
More speakers confirmed for BSRIA Briefing 2024.
Making the most of urban land: Brownfield Passports
Policy paper in brief with industry responses welcomed.
The boundaries and networks of the Magonsæte.