Trenchless Technology

OCT 2018

Trenchless Technology is the premier communications vehicle for the trenchless industry. Through our multiple platforms, readers receive insights into the trenchless industry, as well as keep connected to the latest news, products and projects.

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Page 44 of 91

• Major users – impact of service interruption for hospitals, school and industries. • Community and environmental impact – costs associated with community health, safety and perception , as well as environmental protection requirements. • Service area – impact associated with service interruption throughout the city as the service area increases. • Critical crossings – construction issues associated with replacing or installing a relief line at critical crossings such as utilities, waterways, railroads and major thoroughfares. The assessment of these conse- quences can also be assigned a scoring scale of 1 to 5. RISK OF FAILURE Once you've calculated the PoF and CoF for each asset , you can determine the product of the two. This calculat- ed value represents the business risk of failure for each asset . Critical and high-risk assets are represented in red. Using the 25-point matrix , an organi- zation can set its own priority levels and color coding . The results can be used to develop an overall system improvement plan , as well as a prioritized list for tar- geted maintenance and inspection programs. It 's important to periodi- cally review the criticality analysis and make adjustments to account for changes in the PoF and CoF. Costs may go up over time, or a community may experience new growth . If an old asset fails and is replaced with a new asset , its criticality number will decrease now that the new probabil - ity of failure is much less. Likewise, when trenchless technologies are ap - plied by either using condition as- sessment techniques or trenchless technologies to extend the service life or structural integrity of under- ground water pipes, the risk of those water pipes will be reduced. The risk-based asset management assessment is always based on the best available information at the time of the assessment. As new and better data is available and collected a more accurate risk analysis can be performed. Mainte- nance programs can also greatly bene‰it by using a risk-based analysis approach for prioritizing where maintenance ef- forts and funds will be best spent. A GIS-centric asset management business process platform can provide greater insight into the effectiveness of opera- tions and maintenance and improve the decision making to better balance risk and cost. Greg Baird is the president of the Wa- ter Finance Research Foundation. He specializes in long-term utility plan- ning, infrastructure asset management and capital funding strategies for mu- nicipal utilities in the United States. W W W.T R E N C H L E S S T EC H N O LO GY.C O M 45

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