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These traffic calming devices use vertical deflection to raise the <br />entire wheelbase of a vehicle and encourage motorists to travel <br />at slower speeds. <br />Cost $ <br /> <br />INTERSECTIONS & ROADWAYS <br />Increase <br />Attentiveness <br />and Awareness <br />SAFE SYSTEM HIERARCHY <br />Reduce Vehicle <br />Speeds <br />Speed Hump or Speed Table <br />Tier 1 Tier 2 Tier 3 Tier 4 <br />A raised area that separates the two directions of travel on <br />the minor street approach at an unsignalized intersection or <br />roundabout. Helps channelize traffic in opposing directions of <br />travel. Also helps improve the visibility of an intersection when <br />approaching it. Provides a refuge for pedestrians. <br />Cost $$ <br />Low Cost / Quick Build alternative available <br />LRSM ID NS13 <br />INTERSECTIONS & ROADWAYS <br />Increase <br />Attentiveness <br />and Awareness <br />SAFE SYSTEM HIERARCHY <br />Remove Severe <br />Conflicts <br />Reduce Vehicle <br />Speeds <br />Splitter Island <br />Tier 1 Tier 2 Tier 3 Tier 4 <br />Speed Hump or Speed Table Splitter Island <br />27Kittitas County | Snoqualmie Pass Comprehensive Safety Plan | Appendix J: Countermeasures Toolbox