The Mosaic framework is based on the goals and policies of the Oregon Transportation Plan (OTP). The framework includes nine categories for transportation system performance, each with its own objective and set of general and specific indicators, which are the backbone of Mosaic. The nine categories are similar to the evaluation criteria typically established at the beginning of any planning process. Mosaic can therefore help users establish their evaluation framework by providing researched and tested categories and indicators.
Mosaic indicators are included based on a number of considerations:
Mosaic informs decision making using two measures of value: a benefit-cost analysis (BCA) and a multi-objective decision analysis (MODA). BCA is used to monetize those benefits and costs that can be expressed reasonably and credibly using dollars to represent value. For impacts that cannot be monetized reasonably or credibly, a MODA (multi-objective decision analysis) process is used.
MODA is a technique for making decisions that involve multiple objectives. It involves measuring impacts of the bundles qualitatively or quantitatively and then applying weights to generate a score for each bundle. The weighting is done by stakeholders, who assign weights based on their subjective estimation of the importance or value of each Mosaic indicator. Rather than being a dollar amount, the score is expressed as a number between -5 and +5. The future base case is scored as zero (a neutral score), and the bundles are compared against this neutral value to measure their performance. This technique has been successfully applied to public and private decision processes for several decades.
Mosaic provides BCA and MODA information side by side for decision-makers, as shown in the diagram below.