What is important to remember when passing a snowplow?

When passing a snowplow, it is critical to remember that plows can be moved sideways by drifts and hard snow-pack. This means their position on the road may not be consistent, especially during adverse weather conditions. If a driver attempts to pass without acknowledging this potential movement, they could misjudge the distance and collision risks, leading to an accident.

Snowplows are large vehicles, and their movement can be unpredictable, which is why it’s essential to approach them with caution. Understanding that a plow might not stay in a straight path due to the conditions of the road allows drivers to exercise better judgment and maintain safe distances.

The other options contain misconceptions about the behavior and operational patterns of snowplows. For example, snowplows are indeed often on the road during storms, but they can also be out for maintenance before or after storms. Not all plows signal their turns, as they may be focused on the road conditions rather than traffic regulation, and it is not accurate to say that passing on the left is always safer, as conditions can vary widely during winter weather, affecting safety in unpredictable ways.