Resolution_Adopt 2023_2025 Kittitas County Safety Plan

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Table 3. Scoring criteria and weighted score values used in assessing road safety project priority for 2023. Higher scores indicate a higher priority road segment and/or higher countermeasure needs. Development of Road Segment Safety Improvements After roadway segments were prioritized using the risk-based scoring as described above, the results were reviewed, and the list was shortened so the plan could focus on the segments that would see the most benefit from safety improvements and eliminated erroneous results or locations reflecting outdated information. Road segments with a score lower than 55 were removed from consideration in an attempt to break segments down into higher priority rating and lower priority rating groups. Road segments that were within the scope of current improvement projects or recently completed improvement projects were also removed. Each accident report was examined forfurther details regarding the incident to further identify contributing factors, driver actions, alcohol or drug influence, intersection related, and any countermeasures already in place. The list of candidate locations was further reduced by eliminating roadway segments where accidents were alcohol or drug related with no hazard at the site and segments where countermeasures were already in place and or where no countermeasures would have prevented the accident. While these road segments are important to monitor, focus is given to other locations where collisions due to deficiencies in the road structure can be addressed. The remaining roadway segments were then evaluated for potential safety improvements and countermeasures. Huntzinger Road has been identified as a safety need in the 2023 Safety Plan as well as in past safety plans. Crash data shows several areas where road curvature; both vertical and horizontal, steep embankments, and no shoulder Scoring Criteria and Weighted Scores Item Number Factors and Collision Types Score 1 OVERALL CRITERIA MET: Meets minimum criteria and was included in previous local safety Ian 20 Meets minimum criteria but not included in previous local safety Ian 10 Does not meet minimum criteria and was included in previous local safety Ian 5 2 Clear Zone Inventory Shoulder Width, Side Slopes, Fixed Objects 90th Percentile of highest scored roads based on clear zone inventory 20 80th Percentile of highest scored roads based on clear zone inventory 10 70th Percentile of highest scored roads based on clear zone inventory 5 3 Roadway Curvature—Horizontal Curve Over 50% of the road is in a horizontal curve 20 About 10% to 50% of the road is in a horizontal curve 10 At least one section of the road is in a horizontal curve 5 4 ONE OR MORE FATAL OR SERIOUS INJURY COLLISION(S) — 2015 THROUGH 2019 Fatality perperson/s) 50 ea. Serious Injury (perperson/s) 40 ea. 5 INJURY(per erson/s 15 ea. Development of Road Segment Safety Improvements After roadway segments were prioritized using the risk-based scoring as described above, the results were reviewed, and the list was shortened so the plan could focus on the segments that would see the most benefit from safety improvements and eliminated erroneous results or locations reflecting outdated information. Road segments with a score lower than 55 were removed from consideration in an attempt to break segments down into higher priority rating and lower priority rating groups. Road segments that were within the scope of current improvement projects or recently completed improvement projects were also removed. Each accident report was examined forfurther details regarding the incident to further identify contributing factors, driver actions, alcohol or drug influence, intersection related, and any countermeasures already in place. The list of candidate locations was further reduced by eliminating roadway segments where accidents were alcohol or drug related with no hazard at the site and segments where countermeasures were already in place and or where no countermeasures would have prevented the accident. While these road segments are important to monitor, focus is given to other locations where collisions due to deficiencies in the road structure can be addressed. The remaining roadway segments were then evaluated for potential safety improvements and countermeasures. Huntzinger Road has been identified as a safety need in the 2023 Safety Plan as well as in past safety plans. Crash data shows several areas where road curvature; both vertical and horizontal, steep embankments, and no shoulder