Guidance for Developing a Transit Asset Management Plan (2014) / Chapter Skim
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7 This chapter walks through the steps involved in development of a Transit Asset Management Plan (TAMP)
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8 Guidance for Developing a Transit Asset Management Plan • A list, by asset, of the data your transit agency currently collects related to its assets • An agency-approved definition of SGR • A selected list of performance measures • A plan or protocol for gathering, storing, and updating the necessary data Step 1.1 Establish the Capital Asset Inventory Creation of a TAMP starts with quantifying, describing, and categorizing a transit agency's existing capital assets. MAP-21 defines a capital asset as follows: (1)
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Steps in Developing a Transit Asset Management Plan 9 regarding tracking of data on costs is that you track costs in a consistent manner, which argues for tracking indirect costs only if you can do this consistently. The guidelines for the NTD reporting also can serve as a foundation for these efforts, providing a de facto minimum set of standards for describing a transit asset inventory.
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10 Guidance for Developing a Transit Asset Management Plan Step 1.2 Establish Available Data Resources Once you have established the capital asset inventory, it is important to identify available sources of inventory and condition data for use in developing the TAMP. Specifying which data sources are used for each asset type will allow for consistent, future updates to the inventory.
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Steps in Developing a Transit Asset Management Plan 11 As a result of this step you may find that you do not have sufficient data on all of your assets to complete a full prioritization analysis. If this is the case, you can focus on those assets for which you do have the data, and separately input budget data for other assets.
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12 Guidance for Developing a Transit Asset Management Plan Option 3 A transit system is in a SGR if it exhibits the following characteristics: • Safety: Transit infrastructure and vehicles are well maintained and replaced before their condition deteriorates to the point of presenting a safety risk. • Quality Transit: Infrastructure and vehicles meet customer expectations for comfort and reliability.
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Steps in Developing a Transit Asset Management Plan 13 as the impacts and implications of operating at a given state of repair.
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14 Guidance for Developing a Transit Asset Management Plan Your TAMP should include a core set of measures, which together will capture the condition of your agency's assets. This set in Table 2.7 includes the minimum recommended set of measures, the data for which should be readily available at any transit agency.
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Steps in Developing a Transit Asset Management Plan 15 have completed Step 2.1 (calculation of your agency's current conditions and performance) , you may need to revisit your targets to ensure that they are appropriate.
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16 Guidance for Developing a Transit Asset Management Plan Asset Type Aggregation Level for Calculations Performance Measure Measure Category Calculation Frequency Guideway At a minimum, aggregate by line. Ideally, calculations should be performed for track, other guideway elements, and major systems using the TERM asset hierarchy or equivalent Backlog of investment needs Core Annual Average age Core Annual Percent of assets in good/fair/ poor condition Comprehensive Annual Hours of delay Comprehensive Monthly Facilities At a minimum aggregate by facility.
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Steps in Developing a Transit Asset Management Plan 17 The MBTA has established a one-page scorecard for use in reporting asset conditions. The scorecard includes summary measures of: ridership; mean distance between failures (MDBF)
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18 Guidance for Developing a Transit Asset Management Plan Step Two: Analyze Asset Conditions and Performance With data, performance measures, and targets in order, you are ready to put that information to work. In this step you will first determine where you are today, and establish the assumptions needed to determine where you are headed.
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Steps in Developing a Transit Asset Management Plan 19 an asset ages and help determine when to rehabilitate or replace an asset. Asset deterioration models can be established through analysis of historic data, using models from TERM Lite or other systems, through expert judgment, based on industry standards, or using a variety of other approaches.
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20 Guidance for Developing a Transit Asset Management Plan Asset Deterioration. To develop a TAMP with predictions of future conditions it is necessary to make some assumption about asset deterioration.
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Steps in Developing a Transit Asset Management Plan 21 with transit agency goals, absent specific budget, or other constraints. The policy is developed using the results of Steps 2.3 and 2.4 to determine the point at which different actions should be performed to yield the best performance of the agency's service and lowest overall lifecycle cost.
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22 Guidance for Developing a Transit Asset Management Plan Step 3.1 Specify Prioritization Approach The prioritization approach, informed by the lifecycle policy (Step 2.4) and project replacement impacts (Step 2.3)
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Steps in Developing a Transit Asset Management Plan 23 Table 2.12 shows an example of the results of a project prioritization exercise. In this case the priorities generated by TAPT are shown using pilot data, with a project ID, description, prioritization index (PI)
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24 Guidance for Developing a Transit Asset Management Plan stage in the process this number need not be final, but it should be realistic given constraints. This funding level will likely be key in distinguishing the investment scenarios you define in Step 3.3.
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Steps in Developing a Transit Asset Management Plan 25 Table 2.13 shows example results from this step, in this case the results projected for three scenarios for the transit agency pilots using TAPT. These scenarios include: 1)
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26 Guidance for Developing a Transit Asset Management Plan The following questions may assist you in this analysis: • Are the investment priorities consistent with the scenarios defined previously? That is, if the priorities are used to select what work to perform, is the predicted distribution of funds consistent with that modeled in the scenarios?
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Steps in Developing a Transit Asset Management Plan 27 Step 5 is completed in 3 sub-steps. Upon completion you will have: • A final version of your TAMP Step 5.1 Finalize Funding Levels and Constraints At this stage in the process, your executives will have provided you with a final set of funding assumptions for your use in the TAMP.
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28 Guidance for Developing a Transit Asset Management Plan Next, a set of decision makers entrusted with finalizing the investment plan must select the set of rehabilitation and replacement projects to include in the plan, considering the funding levels that have been established and any constraints on how those funds may be used. If there are few complicating constraints, the project prioritization approach is fully specified, and funding levels are generally adequate, then selecting the set of projects may be as simple as working through the list of alternative projects in decreasing order of rank and selecting projects until the budget is expended.
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Steps in Developing a Transit Asset Management Plan 29 4. Current Conditions a.
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