Experimental and Numerical Study on Production Rate in Sewer Mainline Video Inspection
Publication: Journal of Pipeline Systems Engineering and Practice
Volume 10, Issue 2
Abstract
Municipalities across North America are implementing asset management programs in order to demonstrate stewardship of public assets and decrease maintenance costs. In wastewater-collection systems, sewer condition assessment is a key operation requiring extensive data collection using various methods. Closed-circuit television (CCTV) is the most commonly used method for inspection of sewers, and municipalities spend significant amounts of time and money on its execution yearly. Currently, little information is available on CCTV inspection productivity; such information would enable more efficient resource allocation, and thus the development of a CCTV average production rate is useful for municipalities and contractors. In this study, inspection data on approximately 122 km of sewer network in Edmonton, Alberta, Canada is analyzed, finding an average production rate of approximately for sewer CCTV inspection. This paper also includes an analysis of the effects of weather conditions and temperature on CCTV inspection productivity, with monthly comparisons throughout the year, which is a critical consideration in cold regions.
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Acknowledgments
The authors would like to acknowledge IVIS, Inc. for their support for this project. The staff at the Consortium for Engineered Trenchless Technology (CETT) at the University of Alberta also made this paper possible, particularly Lauren Wozny and Delaina Lawson for their detailed manuscript reviews.
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©2019 American Society of Civil Engineers.
History
Received: Jun 21, 2016
Accepted: Oct 9, 2018
Published online: Mar 4, 2019
Published in print: May 1, 2019
Discussion open until: Aug 4, 2019
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