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Pages 32-41

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From page 32...
... 32 Incorporating Maintenance into Life-Cycle Planning What Is Life-Cycle Planning? One method to determine the most cost-effective approach to managing assets is life-cycle planning (LCP)
From page 33...
... Incorporating Maintenance into Life-Cycle Planning 33   scenarios. This includes setting targeted conditions, reviewing the expected funding levels that might be available over the 10-year analysis period considered in the TAMP, and determining whether any agency-specified priorities must be addressed.
From page 34...
... 34 A Guide to Incorporating Maintenance Costs into a Transportation Asset Management Plan asphalt or concrete. This analysis approach is useful because it considers all the costs that could be incurred over the service life of an asset for each strategy considered.
From page 35...
... Incorporating Maintenance into Life-Cycle Planning 35   Approaches for Considering Maintenance Costs in an LCP Analysis A key to conducting an LCP analysis is the availability of cost and treatment information to represent the strategies for maintaining assets in a serviceable condition. Some agencies have computerized analysis tools that support LCP, such as PMSs and BMSs that use inventory and condition information to predict changes in asset conditions that are best addressed through repair or improvement.
From page 36...
... 36 A Guide to Incorporating Maintenance Costs into a Transportation Asset Management Plan improve asset conditions. Since these types of treatments impact an asset's life cycle, they should be incorporated into an LCP analysis.
From page 37...
... Incorporating Maintenance into Life-Cycle Planning 37   condition of its ITS assets. This establishes a deterioration rate that can be used to estimate the number of assets in a condition state at any point in the analysis.
From page 38...
... 38 A Guide to Incorporating Maintenance Costs into a Transportation Asset Management Plan Repair Costs For purposes of this project, repairs are considered activities that improve asset conditions and functions without improving structural condition or capacity. For example, tightening the bolts on an overhead sign structure or slab jacking a sidewalk may be considered repair activities.
From page 39...
... Incorporating Maintenance into Life-Cycle Planning 39   of the analysis described for preventive maintenance activities. In this instance, the treatment to be considered would be replacement, and it is likely applied to assets in poor condition.
From page 40...
... 40 A Guide to Incorporating Maintenance Costs into a Transportation Asset Management Plan many new assets are being added each year. Individual growth rates for each district could be rolled up to a statewide average if the LCP analysis is being done to reflect agency-wide needs.
From page 41...
... Incorporating Maintenance into Life-Cycle Planning 41   FHWA that are described in Appendix C of NCHRP Report 859. The scenario analysis quantifies the effect of delayed maintenance on future pavement network condition, future budget needs, backlog, and asset valuation.

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