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7 <br /> <br /> Table 2. Crash data for fatal and serious injury collision by jurisdiction and collision type. <br />2015 through 2019 Crash Data <br />Fatal/Serious Injury Collision Types and Conditions <br /> <br />Kittitas County All Counties – Co. <br />Maintained Roads <br />All Public Roads <br />(Washington State) Collision Type <br />(Run-off the road) Number <br />of Crashes <br />Percent <br />of Crashes <br />Number <br />of Crashes <br />Percent <br />of Crashes <br />Number <br />of Crashes <br />Percent <br />of Crashes <br />Hit Fixed Object – Tree/Stump Stationary 2 20.00% 274 23.2% 611 18.5% <br />Hit Fixed Object – Roadway Ditch 1 10.00% 178 15.1% 369 11.1% <br />Hit Fixed Object – Fence 1 10.00% 85 7.20% 173 5.20% <br />Hit Fixed Object – Guardrail 1 10.00% 74 6.30% 315 9.50% <br />Hit Fixed Object – Earth Bank 1 10.00% 132 11.20% 288 8.70% <br />Hit Fixed Object – Utility Pole 1 10.00% 121 10.20% 255 7.70% <br />Hit Fixed Object – Over Embankment 1 10.0% 94 8.0% 224 6.8% <br />Hit Fixed Object – Culvert 1 10.0% 22 1.9% 43 1.3% <br />Hit Fixed Object – Crash Cushions 1 10.0% 3 0.3% 16 0.5% <br />Total Hit Fixed Object 10 41.7% 1,181 43.5% 3,310 27.6% <br />Overturn 6 25.0% 246 9.1% 823 6.9% <br />Light Condition – Dark, No Street Lights 8 33.3% 755 27.8% 1,896 15.5% <br />Light Condition – Dusk 1 4.2% 66 2.4% 215 1.8% <br />Light Condition – Dark, Street Lights On 0 0.0% 91 3.4% 374 3.1% <br />Light Condition – Dawn 1 4.2% 259 9.5% 2792 23.3% <br />Total Light Condition 16 41.7% 1,171 43.1% 5,277 43.7% <br />Non-Intersection – Not Related 19 79.2% 1,821 67.1% 6,688 55.7% <br />Road Curvature – Horizontal Curve 8 33.3% 1,022 37.7% 2,968 24.7% <br />Over Centerline 2 4.9% 176 4.8% 574 3.7% <br />Motorcycle 2 6.5% 591 15.4% 2,391 12.6% <br />Posted Speed at 50 mph 21 77.8% 872 26.2% 1,735 10.8% <br /> <br />Risk-Based Prioritization Methodology <br />Run-off the road crashes have been identified as the predominant collision type in Kittitas County and are occurring <br />at a disproportionately high rate on specific corridors as compared to other public roads in the state as shown in the <br />crash data provided by WSDOT for 2015-2019, reflected in Table 2. As a result, this plan will focus on roadside <br />safety improvements to reduce the severity and number of accidents on Kittitas County roads where it is most likely <br />that run-off the road crashes will occur. <br />From a safety perspective, the ideal roadway is straight with roadsides that are flat and unobstructed by hazards. <br />Straight roadways eliminate the need for drivers to navigate curves, reducing the chances of running off the road.