Volume 1 addresses how to apply a methodology for estimating the life expectancies of major types of highway system assets. The methodology is designed for use in lifecycle cost analyses that support management decision making. Volume 2 describes the technical issues and data needs associated with estimating asset life expectancies and the practices used in a number of fields--such as the energy and financial industries--to make such estimates.Table 4-7 shows the standards (FHWA 2007). ... However, some of the states have developed analogous inspection manuals. ... For sign structures, a 50% probability of condition state 5 in both the Colorado and Florida manuals would beanbsp;...
|Title||:||Estimating Life Expectancies of Highway Assets: Guidebook|
|Author||:||Paul David Thompson, Kevin Matthew Ford|
|Publisher||:||Transportation Research Board - 2012|