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  2. Runway status lights - Wikipedia

    en.wikipedia.org/wiki/Runway_status_lights

    Runway Status Lights (RWSL) are a visual alerting system installed in some airport taxiways and runways for the purpose of collision-avoidance. When illuminated, red high-intensity LEDs indicate the presence of another vehicle either departing, occupying, or landing on an active runway .

  3. Emergency vehicle lighting - Wikipedia

    en.wikipedia.org/wiki/Emergency_vehicle_lighting

    The exception to this is the motor carrier enforcement vehicles which use all red lighting. Ambulance and fire personnel use red warning lights. In Oklahoma, any emergency vehicle may use a combination of red/blue warning lights, with the rural area police departments primarily using all blue lights and rural ambulance and fire using red.

  4. Minnesota school closings for Dec. 19, 2024

    www.aol.com/mn-weather-school-closing-list...

    A winter storm warning is in effect that includes the Twin Cities and the entire I-94 corridor on Thursday. ... MINNEAPOLIS (FOX 9) - The first ... Light to moderate snow will make for tricky road ...

  5. Level crossing signals - Wikipedia

    en.wikipedia.org/wiki/Level_crossing_signals

    Level crossing signals are electronic warning devices for road vehicles at railroad level crossings. Level crossings can be operated in various ways. In some countries such as the UK, the warning devices are more often than not activated by remote control, I.e. an operator pressing buttons. However, the majority of countries have automated systems.

  6. Flood and Tornado Warning Issued for Southern Minneapolis

    www.aol.com/news/flood-tornado-warning-issued...

    Flash flood and tornado warnings were issued for parts of southern Minneapolis on Thursday, September 20.This video shows cars driving along a flooded road in Minneapolis.The National Weather ...

  7. Griswold Signal Company - Wikipedia

    en.wikipedia.org/wiki/Griswold_Signal_Company

    Griswold signals on 22nd Avenue NE, Minneapolis, pictured in 2018. In 1927, Griswold introduced the rotating banner signal. This was a unique combination of highway flasher and rotating stop sign (similar to a school bus stop sign). An approaching train would trigger not just the requisite red flashing lights and bells, but a mechanism that ...

  8. Temporary closure of Minneapolis light rail lines begins ...

    www.aol.com/temporary-closure-minneapolis-light...

    Light rail service in Minneapolis will shut down Wednesday night for a four-day, maintenance-related closure. The closure, which begins at 10 p.m. and is expected to last until 3 a.m. Monday, will ...

  9. Weather beacon - Wikipedia

    en.wikipedia.org/wiki/Weather_beacon

    A weather beacon is a beacon that indicates the local weather forecast in a code of colored or flashing lights. Often, a short poem or jingle accompanies the code to make it easier to remember. [1] [2] The beacon is usually on the roof of a tall building in a central business district, but some are attached to towers.