Critical duration event - Revision history

Editor at 17:58, 16 February 2021

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	* Sustainable urban drainage systems.		* Sustainable urban drainage systems.

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Designing Buildings at 14:07, 25 March 2020

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	A design event is: 'A synthetic rainfall event of a given duration and return period that has been derived by statistical analysis.'		A design event is: 'A synthetic rainfall event of a given duration and return period that has been derived by statistical analysis.'
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		+	Rainfall intensity is the: ‘amount of rainfall occurring in a unit of time, expressed in mm/hr.’

	= Related articles on Designing Buildings Wiki =		= Related articles on Designing Buildings Wiki =
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	* Sustainable urban drainage systems.		* Sustainable urban drainage systems.

−	[[Category:Definitions]] [[Category:Water]]	+	[[Category:Definitions]] [[Category:DCN_Definition]] [[Category:Water]]

Designing Buildings at 12:14, 27 December 2019

2019-12-27T12:14:53Z

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	And a return period is: ‘An estimate of the likelihood of a particular event occurring. A 100-year storm refers to the storm that occurs on average once every hundred years. In other words, its annual probability of exceedance is 1% (1:100).’		And a return period is: ‘An estimate of the likelihood of a particular event occurring. A 100-year storm refers to the storm that occurs on average once every hundred years. In other words, its annual probability of exceedance is 1% (1:100).’
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		+	A design event is: 'A synthetic rainfall event of a given duration and return period that has been derived by statistical analysis.'

	= Related articles on Designing Buildings Wiki =		= Related articles on Designing Buildings Wiki =

Designing Buildings: Created page with "The [https://www.ciria.org/Memberships/The_SuDs_Manual_C753_Chapters.aspx SuDS Manual] published by CIRIA in 2015 defines a critical duration event as: ‘The duration of rainfa..."

2019-12-27T11:40:31Z

Created page with "The [https://www.ciria.org/Memberships/The_SuDs_Manual_C753_Chapters.aspx SuDS Manual] published by CIRIA in 2015 defines a critical duration event as: ‘The duration of rainfa..."

New page

The [https://www.ciria.org/Memberships/The_SuDs_Manual_C753_Chapters.aspx SuDS Manual] published by CIRIA in 2015 defines a critical duration event as:

‘The duration of rainfall event likely to cause the highest peak flows or levels at a particular location, for a specified return period event.’

Where a rainfall event is: ‘A single occurrence of rainfall before and after which there is a dry period that is sufficient to allow its effect on the drainage system to be defined.’

And a return period is: ‘An estimate of the likelihood of a particular event occurring. A 100-year storm refers to the storm that occurs on average once every hundred years. In other words, its annual probability of exceedance is 1% (1:100).’

= Related articles on Designing Buildings Wiki =

* Annual average rainfall.
* BREEAM Surface water run-off.
* Catchment flood management plans.
* CIRIA.
* Coastal defences.
* Drainage.
* Flood risk.
* SuDS manual.
* Sustainable urban drainage systems.

[[Category:Definitions]] [[Category:Water]]