6.6.2.1
Introduction
The majority of asset management costs, for large transportation agencies, are contract costs for preservation, renewal, and construction of assets. However, maintenance investments have a significant impact on asset conditions and should be accounted for in a TAMP. Capturing maintenance costs for inclusion in a TAMP often poses unique challenges, because maintenance work is often delivered by in-house crews or through different contract mechanisms than major capital projects. These costs may also be tracked through different IT systems than capital costs.
When capturing costs for incorporation into a TAMP, it is also important to capture what is purchased, or accomplished, with those investments. Maintenance accomplishments are typically captured in terms of maintenance activities. However, the units of accomplishment for these activities may not easily align with asset management measures. Further the units of accomplishment may vary between work performed by in-house crews and work performed by contract.