| Legislative action in 2007 named I-5, I-82 and I-90 “Green Highways.” With this designation, these routes through Washington have been identified as routes to provide locations for alternative fuel facilities. |
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The "Tsunami Evacuation Route" markers are used to designate the evacuation routes established by local jurisdictions in cooperation with emergency management officials. |
The "Volcano Evacuation Route" markers are used to designate the evacuation routes established by local jurisdictions in cooperation with emergency management officials.
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The "Fender Bender?" signs are to encourage uninjured motorists involved in "fender bender" type collisions to move their vehicles out of the traffic lanes, if the vehicles are still drive-able. Following a minor collision, driving a vehicle to the nearest shoulder can prevent other "secondary" collisions. |
| The "Tsunami Hazard Zone" sign is intended to be posted at Pacific coast access points, or other low-lying areas that would clearly be vulnerable to a large, locally generated Tsunami. Signs are to be placed at locations agreed upon by local and state governmental authorities. |
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