摘要: |
The study involves: (1) The identification or conceptual development of a more strategic pavement performance measure that can be used to effectively and timely assess that investments are made to “…maintain the highway infrastructure asset system in a state of good repair” as it relates to pavement assets. USDOT TIGER II Guidance issued in 2010 by the Department of Transportation, Office of the Secretary, under Docket No. DOT–OST–2010–0076 defined the State of Good Repair (SGR) as “improving the condition of existing transportation facilities and systems, with particular emphasis on projects that minimize life‐cycle costs.” (2) The identification or conceptual development methodologies to guide full implementation of comprehensive asset management, including trade-off analysis from a common ground among disparate assets that are traditionally individually assessed and managed. Section 1106 of MAP-21 defines asset management “a strategic and systematic process of operating, maintaining, and improving physical assets, with a focus on both engineering and economic analysis based upon quality information, to identify a structured sequence of maintenance, preservation, repair, rehabilitation, and replacement actions that will achieve and sustain a desired state of good repair over the lifecycle of the assets at minimum practicable cost.’’ The scope of this effort is limited to identification or conceptual development only. Development, validation, and pilot implementation of promising concept(s), if any, will be pursued in a follow on effort. It is also anticipated that there may be multiple approaches that may merit consideration and that some may draw from approaches in use outside transportation and from international experience. |