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  2. Washington State Department of Transportation - Wikipedia

    en.wikipedia.org/wiki/Washington_State...

    WSDOT has approximately 1,500 positions for winter operations, which includes snow plow crews for the major mountain passes crossed by state highways. [31] In the Snoqualmie Pass area, the agency has avalanche control crews that use an M60 tank, howitzers, and a mechanical tram carrying explosives to clear snow buildup before it endangers the ...

  3. Good to Go (toll collection system) - Wikipedia

    en.wikipedia.org/wiki/Good_to_Go_(toll...

    WSDOT completed a major overhaul of the system in July 2021. Some of the changes included the elimination of a required $30 pre-paid account, and the ability to pay a negative balance online. [ 2 ] The changeover, which included a two-week system blackout, was scheduled to take place in June but was postponed by a month due to errors found in ...

  4. List of Washington State Scenic and Recreational Highways

    en.wikipedia.org/wiki/List_of_Washington_State...

    In addition to the state scenic highways system, several routes in Washington are designated as National Scenic Byways and All-American Roads. [23]Cascade Loop National Scenic Byway (2021) [24]

  5. WSDOT urges drivers to plan ahead as upcoming construction ...

    www.aol.com/news/wsdot-urges-drivers-plan-ahead...

    Drivers in the Puget Sound are inching closer to a season of traffic jams. Washington State Department of Transportation has several construction projects currently in the works or planned for summer.

  6. Transportation systems management - Wikipedia

    en.wikipedia.org/wiki/Transportation_systems...

    In this context, transportation systems management techniques may include changes to traffic signals, such as coordinating them or introducing ramp metering, or minor changes to road geometry, such as straightening corners or lengthening merge lanes. These low-cost interventions can be very effective in reducing congestion under some circumstances.

  7. Roadway departure - Wikipedia

    en.wikipedia.org/wiki/Roadway_departure

    An important concept in understanding roadway departure is the clear zone. This is the roadside area that is free of obstacles and dangerous slopes. Early research at the General Motors Proving Grounds found that 80% of their test drivers stopped or regained vehicle control within 30 feet (9 m) of the edge of the travel lane.

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