What should you do if you have already entered an intersection when the traffic light turns yellow or red?

When you are already in an intersection and the traffic light turns yellow or red, the best course of action is to continue through the intersection. This is based on the principle that a vehicle that is already committed to crossing an intersection should proceed rather than stop abruptly, which could create a dangerous situation for both the driver and other road users.

If you were to stop immediately when your vehicle is partially within the intersection, it could lead to a potential collision, especially if vehicles behind you are still moving forward. Backing up can also be hazardous since it puts you in a position where you cannot see other traffic effectively, and it could confuse other drivers. Making a U-turn is not an appropriate response either, as it would violate traffic rules and could create further hazards in the intersection.

Therefore, proceeding through the intersection when already committed is both a safer option and aligned with proper traffic flow behavior in this situation.