When you approach an intersection on a main road, and the intersection is blocked with traffic, you should:

When approaching an intersection on a main road that is blocked with traffic, the appropriate course of action is to stop before entering the intersection and wait until the traffic ahead has cleared. This practice is essential for several reasons.

Firstly, entering an intersection when it is blocked can lead to gridlock, where vehicles become stuck and obstruct the flow of traffic from all directions. This can cause substantial delays and may create hazardous situations for other drivers, pedestrians, and emergency vehicles. By stopping and waiting, you are ensuring that you do not contribute to this problem.

Secondly, remaining behind the stop line maintains safety. If you were to proceed while the intersection is congested, you risk potentially blocking cross traffic—this could lead to accidents as other vehicles try to navigate around you. Adhering to traffic regulations promotes orderly movement and enhances everyone's safety.

Additionally, waiting ensures you have a clear path to proceed when it is safe to do so. This is especially important in situations where visibility is limited or where complex traffic signals may be in effect.

In summary, coming to a complete stop and waiting for the intersection to clear is the safest and most responsible action to take when faced with blocked traffic. It helps maintain traffic flow, enhances safety, and prevents further congestion.