TryPokingIt t1_jdvl9wi wrote on March 27, 2023 at 2:58 PM Reply to TIL that the red lights on top of tall buildings in cities are called “aviation obstruction lighting,” and are used to help pilots of low-flying aircraft avoid collisions with otherwise hard-to-see structures. by bearjew64 And the series of three multicolored vertical lights at road intersections are meant to control traffic flow Permalink 45
TryPokingIt t1_jdvl9wi wrote
Reply to TIL that the red lights on top of tall buildings in cities are called “aviation obstruction lighting,” and are used to help pilots of low-flying aircraft avoid collisions with otherwise hard-to-see structures. by bearjew64
And the series of three multicolored vertical lights at road intersections are meant to control traffic flow