At an ordinary circular vehicle traffic light, with no arrows or officers’ instructions altering its application, which light prohibits passage without the exception for steady amber when stopping with sufficient safety is impossible?

Correct answer

The steady red light.

Steady red. Do not pass the light or the applicable preceding stop line; if it is within or beyond an intersection, do not enter the junction. Steady amber also requires stopping, except when it appears so close that stopping with sufficient safety is impossible. Flashing amber requires caution and giving way where appropriate, without exempting compliance with other stop requirements.