Guide to Cross-Asset Resource Allocation and the Impact on Transportation System Performance (2015) / Chapter Skim
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Pages 33-41
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From page 33... ...
33 4.1 Applying the Tool for Agency Decision Making State DOTs and MPOs can apply the framework and use the tool prototype in a variety of ways. This can be summarized as conducting analyses and producing critical inputs for at least four key agency activities: • Planning: Providing analytical support for development of SLRTPs, metropolitan transportation plans (MTPs)
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34 Guide to Cross-Asset Resource Allocation and the Impact on Transportation System Performance 4.2.1 Overarching Project Prioritization At the most basic level, the prototype is a project prioritization tool that enables agencies to comprehensively rank projects and optimize their selection given unique program areas, performance measures/targets, priorities (i.e., weighting of performance measures) , needs (i.e., candidate projects)
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Tool Implementation Playbook 35 These analyses can better inform stakeholders and the public by comparing the merits of preferred projects to other candidate projects and to showing the impacts advancing these projects would have on overall system performance. Example Application: An agency receives a politically based request (e.g., from the governor)
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36 Guide to Cross-Asset Resource Allocation and the Impact on Transportation System Performance Similarly, a state could use the tool prototype to support top-down development of its TAMP by helping officials look across asset classes to determine where they want them to fall on cost versus performance curves and allocate resources accordingly. These allocations could then serve as inputs to agency management systems.
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Tool Implementation Playbook 37 Quesons and Issues Consideraons Intended Applicaons – What planning processes do you wish to support and what decisions do you want to inform through use of the tool prototype? Intended applicaons will drive both the data needed to support the tool prototype and the processes that can be used to apply it.
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38 Guide to Cross-Asset Resource Allocation and the Impact on Transportation System Performance serve as a guide to help agencies (1) determine the highest value uses for the tool given an agency's unique circumstances, (2)
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Tool Implementation Playbook 39 4.4.1 Data Integration and Performance Measures • Projects tab: Input candidate projects and attributes into the tab. Required attributes are a unique project ID, project cost and sponsoring program area, and variables to convert between project- and network-level performance [e.g., annual average daily traffic (AADT)
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40 Guide to Cross-Asset Resource Allocation and the Impact on Transportation System Performance • Scaling tab: All performance measures are normalized to a level playing field. If linear scaling is chosen, users must specify minimum/maximum possible values for each performance measure.
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From page 41... ...
Tool Implementation Playbook 41 allocation across assets, given budget limitations, objectives, and performance targets. Users need to input the following data for performance measures (such as IRI, bridge condition, and travel speed)
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