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The emphasis on improving signal coordination for this <br />countermeasure is to provide an opportunity for slow-speed <br />signal coordination. Coordinating signals to allow for bicyclist <br />progression, also known as a ‘green wave,’ gives bicyclists <br />and pedestrians more time to cross through the ‘green wave’ <br />intersections. It also slows vehicle speeds, helping to reduce the <br />likelihood of severe collisions. <br />Cost $$ <br />LRSM ID S03 <br />SIGNALS <br />SAFE SYSTEM HIERARCHY <br />Reduce Vehicle <br />Speeds <br />Signal Interconnectivity <br />and Coordination <br />/ Green Wave <br />Tier 1 Tier 2 Tier 3 Tier 4 <br />At certain hours (e.g. late night) a signal remains red for all <br />approaches or certain approaches until a vehicle arrives at the <br />intersection. If the vehicle is going faster than the desired speed, <br />the signal will not turn green until after vehicle stops. If the <br />vehicle is going the desired speed the signal will change to green <br />before the vehicle arrives. This signal timing provides operational <br />benefit to drivers traveling at the desired speed limit. Can be <br />paired with variable speed warning signs. <br />Cost $$ <br />LRSM ID R26 <br />SIGNALS <br />Manage Conflicts <br />in Time <br />SAFE SYSTEM HIERARCHY <br />Reduce Vehicle <br />Speeds <br />Speed Sensitive Rest <br />in Red Signal <br />Tier 1 Tier 2 Tier 3 Tier 4 <br />Signal Interconnectivity and Coordination/Green <br />Wave <br />Speed Sensitive Rest in Red Signal <br />44 Appendix J: Countermeasures Toolbox | Snoqualmie Pass Comprehensive Safety Plan | Kittitas County