What do yellow and red traffic lights on at the same time mean?
Allowed to start moving.
Prohibit traffic and warn that a green light will soon be on.✓Respuesta correcta
A vehicle with special sound or flashing light signals is approaching the intersection.
Explicación
Red and yellow illuminated together still prohibit the vehicle from starting. The combination announces that green is about to appear, but anticipation is not permission to cross the stop line before the green signal is actually shown.
