Most operations and maintenance (O&M) staff in British Columbia local governments estimate that a large majority of their maintenance activities are reactive rather than proactive and that 85 to 90 percent of maintenance time is spent on fixing things about to break or are broken. The most immediate way to defer capital replacement and reinvestment expenditures is to improve maintenance. Moving from a reactive to a proactive mode can extend the service life of the asset, improve service reliability and performance, and reduce costs.