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CHAPTER 4: ALTERNATIVES EVALUATION CRITERIA The evaluation methodology included the development of: Weighted scoring is a method levels • Project Goals(from Purpose and Need presented in sed ` •ive ` Chapter 1) and total assigned points for each Goal; importance, ` ` different criterion when calculating • Evaluation Criteria for each Goal; and a total score. For example, in a • Performance Measurements(points)for each school project, if research criterion ranging from 1 (alternative does not meet important than creativity,you or improve the criterion)to 3 (alternative meets or might assign a higher weight to _ exceeds goal of criterion). research Each Performance Measurement was assigned a to the creativity • - The weighted Weight based on the Goal's assigned points and scoring formula multiplies its number of criteria. For each Alternative, a total factor by - • adds up weighted score was determined by summing the total these points to get the total score. weighted scores for each Project Goal. Performance Rating Methodology The Performance Rating for each criterion is based on the total Assigned Points for each Project Goat divided by the number of Evaluation Criteria for that Goal. For example, Freight Mobility was assigned 10 points, and has 3 criteria.Therefore, each criterion's maximum weight would be 3.3 points (10 divided by 3). The Weighted Score for each Alternative's ability to meet the overall Goal was calculated as follows: Criterion's Performance Measurement Weight(1, 2, 3)times the Weight (based on the Goal's Assigned Points and number of Criteria). Alternative t.ritena �conng txample: 1. If an Alternative was being scored on the Project Goal- Freight Mobility: Freight Mobility=Max 10 points out of 100 Total Goat points 2. There are 3 Evaluation Criteria for Freight Mobility: Freight Mobility 10 pts maximum divided by 3 categories Max 3.3 pts per Performance Measurement 3. Performance Measurement'3' = Max Value, '2' = Moderate Value, '1' = Minimum/No Value • So if the Performance Measurement for this Alternative is "3 Increases freight throughput", it would receive 3.3 pts (Max value). • If it is rated as a "2 Moderately increase freight throughput", it would receive 1.7 pts (Moderate Value). • If it is rated as a "1 — Did not increase freight throughput", it would receive 0 pts (Minimum/No Value). VOLUME I: FEASIBILITY REPORT 1-90 Corridor Easton to Cle Elum Feasibility Study I S3