Exploration of the relationship between water main breaks and temperature covariates

From National Research Council Canada

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DOI	Resolve DOI: https://doi.org/10.1080/1573062X.2011.630093
Author	Search for: Rajani, B. B.¹; Search for: Kleiner, Y.¹; Search for: Sink, J-E.¹
Affiliation	National Research Council of Canada. NRC Institute for Research in Construction
Format	Text, Article
Subject	ductile iron pipes, corrosion pit, pipe sampling, condition assessment; Water mains
Abstract	This paper examines the impact of temperature changes on observed pipe breakage rate for three pipe materials, namely, cast iron, ductile iron and galvanized steel. Several water and air temperature-based covariates were tested in conjunction with a non-homogeneous Poisson pipe break model to assess their impact on water main breaks, using data sets from three different water utilities in the USA and Canada. Temperature-based covariates, such as average mean air temperature, maximum air temperature increase and decrease, and how fast the air temperature increase and decrease over a specific period of days, were found to be consistently significant. While the availability of water temperature data (which most utilities do not have) can enhanced the prediction of water main breaks, it appears that air temperature data alone (which most utilities can access) are usually sufficient.
Publication date	2012-05-01
In	Urban Water Journal 9, no. 2 (1 May 2012): 67–84.
Language	English
Peer reviewed	Yes
NRC number	NRCC 54537 NRC-IRC-21839
NPARC number	20374275
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Record identifier	7c91a647-aadd-40db-9701-39533b682647
Record created	2012-07-23
Record modified	2020-04-21

Date modified:: 2024-07-26