What should you do at a traffic light that is red and yellow?

At a traffic light displaying red and yellow, the correct action is to stop and be prepared to proceed when the light turns green. This light combination typically signifies that the light is about to change to green, meaning it is essential to prepare for movement while ensuring safety. Stopping ensures that no one is caught off guard by the change, allowing for a smooth transition once the light turns green.

Choosing to speed up to clear the intersection could lead to dangerous situations, as it does not account for other vehicles or pedestrian activity that may be present. Yielding to other vehicles is less applicable in this scenario, as the primary instruction is to stop rather than negotiate right-of-way. Turning left immediately could result in collisions with oncoming traffic, as vehicles are expected to stop at a red and yellow light until the green signal permits safe movement.