Prioritization and Weighting Workshop for Project Scoping and Safety Criteria
Join the January 14, 2020, workshop with Brad Hofer at the Location & Environment Bureau to learn about project prioritization, scoping, and criteria weighting for safety and infrastructure projects. Understand how to assign weights to various criteria effectively to enhance decision-making processes.
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Presentation Transcript
Project Prioritization Weighting Workshop January 14, 2020 Brad Hofer Location & Environment Bureau
Prioritization & Scoping SAFETY ROAD CLASS FREIGHT PAVEMENT BRIDGE TRAFFIC MOBILITY 18% 10% 12% 16% 15% 15% 14% 100%
Prioritization & Scoping Criteria Weight Basis for scoring Safety 18% Score based on average crashes per mile adjusted for fatalities and major injuries Roadway Class 10% Score is based on the projects inclusion on important Iowa networks like the CIN Freight 12% Score is based on truck percentage, normalized by AADT and adjusted for freight bottlenecks Pavement 16% Structural condition of the pavement adjusted for smoothness & rideability Bridge 15% Bridge condition index, which includes age, load capacity, traffic count, and a few other factors Traffic 15% A weighted measure of the volume of traffic that each road is carrying in comparison to what it can carry Mobility 14% Based on actual hours of delay when available, or when not available, the relationship between incidents, numbers of access points, and traffic volumes
Weightings Exercise
Swing Weighting Process Weight the criteria. a. Assign a weight of 100 points to the highest ranked criterion b. Assign a weight (between 0-100) to the next highest ranked criterion, and so on Once you have weights for each criterion, review them for consistency and validity a. Compare highs vs. lows to ensure the relative weightings make sense
Swing Weighting Example Home Purchase Establishing the Weights
BRAD HOFER RIGHT OF WAY BUREAU Brad.hofer@iowadot.us Office: 515-239-1787 QUESTIONS ???
