期刊
WATER RESOURCES MANAGEMENT
卷 25, 期 5, 页码 1437-1448出版社
SPRINGER
DOI: 10.1007/s11269-010-9753-2
关键词
Water supply; Reliability; Tolerance; Network design
资金
- Spanish Ministry of Education [DPI2009-11591]
- Universidad Politecnica de Valencia [PAID-02-09]
- Ministerio de Asuntos Exteriores y Cooperacion of Spain [MAEC-AECI 0000202066]
- Universidad Politecnica de Valencia, Spain
Urban water supply is a high priority service and so looped networks are extensively used in order to considerably reduce the number of consumers affected by a failure. Looped networks may be redundant in connectivity and capacity. The concept of reliability has been introduced in an attempt to quantitatively measure the possibility of maintaining an adequate service for a given period. Numerous researchers have considered reliability as a measure of redundancy. This concept is usually implicit, but some researchers have even stated it explicitly. This paper shows why reliability cannot be considered a measure of redundancy given that branched networks can achieve high values of reliability and this would deny the fact that a looped network is more reliable than a branched network with a similar layout and size. To this end the paper discusses two quantitative indices for measuring expected network behavior: reliability and tolerance. These indices are calculated and a comparison is made between looped, branched, and mixed networks.
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