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Pages 11-17

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From page 11...
... 11 The findings presented in the previous chapters suggest the value of a process that overcomes some current barriers while acknowledging and accommodating the realities of others. STREAM is built on the seven principles set forth in Chapter 2.
From page 12...
... 12 Step 1: FRAME the Problem and Specify Goals The Frame step is the foundation on which the subsequent steps are based. In this step, decisionmakers make explicit the following: • The agency functions for which alternative technologies are being considered19 • The goals on which the functions bear • The objectives and metrics by which each goal should be measured This helps establish a common understanding of the decision's objectives and criteria, both within an agency and for other agencies that may turn to the analysis for guidance.
From page 13...
... 13 Agencies may perform the functions of surface transportation stewardship slightly differently, but the existence of a document such as the AASHTO Bridge Inspection Manual (and other similar widely used standard documents such as the Highway Capacity Manual for other routine functions) suggests that agencies are performing the same essential functions with similar mechanisms and for similar purposes.
From page 14...
... 14 is applied and each candidate technology is rated according to that scale. The ranges of informed opinion on each potential benefit are retained at this point.
From page 15...
... 15 The advantage is that this allows a single metric to be constructed from what otherwise would be a heterogeneous set of potential obstacles, some of which might be quantifiable in natural unit terms while others of which could only be reasonably assigned a qualitative measure. The three examples of STREAM in application (in Chapter 4 and Appendices B and C)
From page 16...
... 16 The range of estimates for the discounted net cost produced by each specific cost factor will, in sum, determine the range of total fixed and recurring costs for the candidate technology being evaluated.26 The output must state how the scale of deployment (e.g., the necessity to purchase one versus 100 units) affects cost, so that in future iterations (e.g., one that would require acquisition of 50 units)
From page 17...
... 17 together with the context in which the technology applications are to be applied, to examine the tradeoffs between alternative technology applications. This step is discussed in greater detail in the next chapter in which an in-depth treatment is presented by application to a specific function performed by transportation agencies.

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