When is it advisable for a driver to check their mirrors during an approach to an intersection?

The guidance to check mirrors at least 100 feet from the intersection is critical for ensuring safety while navigating through traffic. This distance allows the driver to be aware of their surroundings well in advance, providing a clear picture of other vehicles, pedestrians, and cyclists that may be nearby.

By checking mirrors at this point, drivers can assess the flow and behavior of surrounding traffic, which is essential for making informed decisions, such as whether to slow down, change lanes, or prepare to yield to pedestrians. This proactive approach to mirror checking helps to minimize the risk of potential collisions or unexpected interactions as the driver approaches the intersection.

In contrast, checking mirrors only when the light turns green may lead to a delayed response to any hazards, as the driver may not be fully aware of their surroundings at that critical moment. Checking immediately before turning could also be too late to make necessary adjustments to speed or lane changes. Lastly, addressing mirror checks only after stopping at a stop sign does not equip the driver with the vital information needed to safely navigate an intersection. Therefore, monitoring mirrors early in the approach is the most effective practice for ensuring a safe driving experience.