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I III ro ljn Ct i oil <br />The Kittitas County Road Safety Plan is a comprehensive program of safety improvements aimed at <br />reducing fatalities and serious injury accidents across the entire county road system. This program of <br />improvements was developed using a strategy similar to the Washington State Strategic Highway Safety <br />Plan 2016: Target Zero, in which crash data is analyzed to identify accident trends and contributing <br />factors, and then sites within the road system are prioritized based on a risk-based ranking system. <br />Safety improvement projects are then developed to target spot location and systemic improvements <br />that provide the greatest benefit to the traveling public by preventing potential fatal and serious injury <br />accidents. <br />Due to the sporadic nature of crashes on rural county roads, it can be difficult to determine trends using <br />past data alone to choose good locations for improvements. However, past crash data can be used to <br />predict future crashes by evaluating the contributing factors and targeting improvements for roads with <br />similar characteristics. This is why Kittitas County has decided to utilize this strategy to allow for a <br />proactive approach that benefits more locations throughout the entire County road system and is more <br />cost effective than just focusing on past crash locations. <br />Data Analysis <br />Data used for this evaluation was provided by Washington State Department of Transportation <br />(WSDOT). The data includes detailed information about crashes on Kittitas County roads from 2011 <br />through 2015, including a comparison of how Kittitas County's roads compare to other public roads in <br />the state. Table 1 below shows overall collision data for fatal and serious injury accidents. Although <br />overall fatal and serious injury collisions occur at a similar rate to other public roads within the state, <br />Kittitas County is committed to reducing these types of collisions and strives to reach a target of zero <br />deaths and injuries on County roads. For that reason, this Safety Plan focuses on reducing potential <br />fatal and serious injury collisions in Kittitas County. <br />Collision Type <br />Kittitas County <br />All Counties- Co. <br />Maintained Roads <br />All Counties -All Public <br />Roads <br /># Crashes <br />% of <br />Crashes <br /># Crashes % of <br />Crashes <br /># Crashes <br />% of Crashes <br />Fatal <br />5 <br />19.2% <br />632 23.4% <br />2,188 <br />19.9% <br />Serious Injuries <br />21 <br />80.8% <br />2,067 76.6% <br />8,813 <br />80.1% <br />Alcohol -Related <br />10 <br />38.5% <br />838 31.0% <br />2,684 <br />24.4% <br />Total fl Fatalities <br />5 <br />679 <br />2,378 <br />Total # All Injuries <br />224 <br />32,265 <br />230,395 <br />Total# All Collisions <br />656 <br />--- <br />67,137 1 <br />523,186 <br />--- <br />