Resource Allocation Logic Framework to Meet Highway Asset Preservation (2012) / Chapter Skim
Currently Skimming:
Pages 8-24
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 8... ...
8C h a p t e r 2 The research team began the work by augmenting our understanding of the current state- of-the-practice in resource allocation. We focused on the policies and principles that typically govern the practices in use as well as the data, methods, and constraints that affect preservation resource allocation decisions.
|
From page 9... ...
Literature review 9 2.1 Business Case 2.1.1 Defining Highway Preservation The team established a working definition of preservation -- actions to restore and maintain assets in good condition and to extend useful service life. The following definition of preservation maintenance is from NCHRP Report 551(1)
|
From page 10... ...
10 resource allocation Logic Framework for highway asset preservation ditches and structures, maintenance of pavement markings and crack filling, pothole patching, and isolated overlays. The state DOT interviews revealed that many states consider some routine preventive maintenance, corrective maintenance, and minor rehabilitation work activities to be part of the preservation program, because they are important to extending useful life.
|
From page 11... ...
Literature review 11 inputs requested by the central office and refine the projects identified by the central office. The states that have strong legislative oversight tend to have a centralized model.
|
From page 12... ...
12 resource allocation Logic Framework for highway asset preservation 2.1.2.2.1 Establishment of Performance Goals and Targets. Setting performance goals is usually a tiered process and occurs at the strategic, tactical, and operational levels, as shown in Figure 2-2.
|
From page 13... ...
Literature review 13 Finally, at an operational level, central or district offices (depending on the program and management model) assess needs and typically use inventory-specific and condition metrics for pavement and bridges.
|
From page 14... ...
14 resource allocation Logic Framework for highway asset preservation Many of the interviewed states prioritize safety and preservation needs over other programs. They fund emergency programs, including snow removal and high-priority rehabilitation activities, separately or off the top, followed by other prioritized programs.
|
From page 15... ...
Literature review 15 condition of the bridges and pavements, respectively. State DOTs widely adopt the ability to forecast asset conditions based on varying investment levels for bridges and pavements.
|
From page 16... ...
16 resource allocation Logic Framework for highway asset preservation added for factors driving asset deterioration (e.g., traffic loads, accidental damage rates)
|
From page 17... ...
Literature review 17 2.2.1.2 Other Highway Assets Data-collection and maintenance methods for assets other than bridges and pavements are not rigorous, and the existing data's usefulness suffers. For example, states usually have at least inventory and (sometimes)
|
From page 18... ...
18 resource allocation Logic Framework for highway asset preservation Although many agencies maintain and use high-level performance measures, there is little consensus on accepted principles for setting realistic performance targets (5)
|
From page 19... ...
Literature review 19 consistent methodology for performance-based resource allocation and (2) continually assess accumulated results over time to calibrate key assumptions on the effects of investments on asset performance and useful life expectations.
|
From page 20... ...
20 resource allocation Logic Framework for highway asset preservation bridges and PMS to manage pavements. Most states also typically use either the added functionality of the data management systems or stand-alone tools that interface with the management systems.
|
From page 21... ...
Literature review 21 2.3.2 Optimization Techniques The literature review and state DOT interviews revealed the optimization techniques adopted by state DOTs to allocate resources. The following summarizes the key findings: • Some state DOTs perform tradeoff analysis to determine the impact of varying levels of investment on asset condition and performance for major asset categories, such as pavements and bridges.
|
From page 22... ...
22 resource allocation Logic Framework for highway asset preservation • It is less common for states to conduct tradeoff analysis between programs or assets to optimize the resource allocation. In fact, one state DOT interviewed mentioned that the allocation of resources across programs and assets depends heavily on priorities and points of view.
|
From page 23... ...
Literature review 23 2.5 Summary of Findings The literature review and state DOT interviews provide an understanding of the current state of the practice in resource allocation and provide background resources that were used in the framework development as well as open channels for information sharing on this research. This section summarizes the main findings and presents the information in the standard Strengths, Weaknesses, Opportunities, Threats/Risks (SWOT)
|
From page 24... ...
24 resource allocation Logic Framework for highway asset preservation 2.5.3 Opportunities • Encourage state DOTs to collect data and performance measure standards for asset types, such as signals, signs, and guardrails, to better manage preservation needs for these assets. • Encourage development and use of integrated data systems to manage asset and performance data for assets other than bridges and pavements.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.