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Other Reference Information <br />FHWA Manual for Selecting Safety Improvements on High Risk Rural Roads <br />Rumble strips create noise and vibration inside the vehicle that <br />alert a driver as they cross the centerline or edge line. Treatment <br />can help with lane keeping instances where a driver is distracted <br />or drowsy. Rumble strips also alert drivers to the lane limits when <br />conditions such as rain, fog, snow, or dust reduce driver visibility. <br />Cost $ <br />LRSM ID R30/R31 <br />INTERSECTIONS & ROADWAYS <br />Increase <br />Attentiveness <br />and Awareness <br />SAFE SYSTEM HIERARCHY <br />Rumble Strips <br />Tier 1 Tier 2 Tier 3 Tier 4 <br />An all-way stop-controlled intersection requires all vehicles to <br />stop before crossing the intersection. An all-way stop-controlled <br />intersection reduces the risk of severe conflicts as long as all <br />road users see and obey the stop signs. The MUTCD (Manual on <br />Uniform Traffic Control Devices) includes information on when <br />and how to implement “All Way” Or “Multi-Way” stop control <br />intersections. <br />Cost $ <br />LRSM ID NS02 <br />INTERSECTIONS & ROADWAYS <br />Manage Conflicts <br />in Time <br />Increase <br />Attentiveness <br />and Awareness <br />SAFE SYSTEM HIERARCHY <br />Remove Severe <br />Conflicts <br />Reduce Vehicle <br />Speeds <br />All-Way Stop Control <br />Tier 1 Tier 2 Tier 3 Tier 4 <br />Intersections & Roadways <br />Rumble Strips <br />All-Way Stop Control <br />15Kittitas County | Snoqualmie Pass Comprehensive Safety Plan | Appendix J: Countermeasures Toolbox