Premium
The analysis of ruptures in metropolitan gas pipelines
Author(s) -
FaSiOen Vivien,
Pievatolo Antonio
Publication year - 2000
Publication title -
quality and reliability engineering international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 62
eISSN - 1099-1638
pISSN - 0748-8017
DOI - 10.1002/(sici)1099-1638(200001/02)16:1<17::aid-qre279>3.0.co;2-z
Subject(s) - poisson distribution , metropolitan area , power law , homogeneous , poisson process , statistics , power function , poisson regression , generalized linear model , mathematics , geology , environmental science , econometrics , forensic engineering , geography , engineering , mathematical analysis , demography , archaeology , combinatorics , population , sociology
We model the yearly counts of occurred ruptures in a metropolitan gas distribution network using both a homogeneous Poisson process and a power law process. Covariates such as depth, diameter and site of the pipes are included via standard generalized linear modelling for Poisson data in the first case and via a proportional intensity function in the second case. It is found that the homogeneous Poisson process provides an acceptable interpretation of the data, thus confirming the hypothesis that the cast iron pipes do not suffer from erosion and that only the traffic conditions on the site above the pipes seem to affect the rupture rate. Copyright © 2000 John Wiley & Sons, Ltd.