What action should be taken when approaching a red traffic light?

When approaching a red traffic light, the appropriate action is to stop at the light. This is a critical safety measure that ensures the driver is abiding by traffic laws and promoting the safety of all road users. A red light signals that vehicles must come to a complete stop, as proceeding through the intersection could result in collisions with cross traffic that has the right of way, potentially leading to serious accidents.

Additionally, stopping at a red light allows pedestrians to cross safely at intersections, further ensuring the safety of those on foot. This action reinforces the concept of waiting for the green light, which indicates that it is safe to continue driving.

The other choices, such as speeding through if no cars are present, slowing down to proceed if clear, or honking to alert other drivers, imply disregarding the traffic signal. These actions can contribute to dangerous situations and violate traffic regulations, emphasizing the importance of adhering to the established rules of the road for everyone's safety.