Hydraulic Deterioration Models for Storm-Water Drainage Pipes: Ordered Probit versus Probabilistic Neural Network

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Tran, Huu Dung, Perera, B. J. C and Ng, A. W. M (2010) Hydraulic Deterioration Models for Storm-Water Drainage Pipes: Ordered Probit versus Probabilistic Neural Network. Journal of Computing in Civil Engineering, 24 (2). pp. 140-150. ISSN 0887-3801

Abstract

A decrease in discharge capacity of storm-water drainage pipes is the result of the so-called hydraulic deterioration which reduces the cross sectional area of pipes and increases the pipe roughness. Hydraulic deterioration is caused by tree root intrusion, sediment accumulation, and encrustation, and is affected by many influential factors such as pipe size and pipe location. Predicting hydraulic deterioration is important for effective management of drainage pipes. An ordered probit deterioration model (OPDM) and a probabilistic neural network deterioration model (PNNDM) were developed in this study using the influential factors as model inputs and the hydraulic condition as model output. Their predictive performances were compared against each other using a case study from Melbourne, Australia with a sample of 417 storm-water drainage pipes subjected to closed circuit television inspection. The results show that the PNNDM is more suitable for predicting the hydraulic deterioration and outperforms the OPDM. Several input factors such as pipe size and pipe age are found significant to the hydraulic deterioration.

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Item type Article
URI https://vuir.vu.edu.au/id/eprint/6765
DOI https://doi.org/10.1061/(ASCE)CP.1943-5487.0000020
Official URL http://dx.doi.org/10.1061/(ASCE)CP.1943-5487.00000...
Subjects Historical > FOR Classification > 0905 Civil Engineering
Historical > SEO Classification > 9004 Water and Waste Services
Historical > Faculty/School/Research Centre/Department > Institute for Sustainability and Innovation (ISI)
Historical > Faculty/School/Research Centre/Department > School of Engineering and Science
Keywords ResPubID19506, stormwater management, management of drainage pipes, storm-water drainage pipe discharge capacity, predicting hydraulic deterioration
Citations in Scopus 16 - View on Scopus
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