Motorcycles are particularly difficult to see when they are:

Motorcycles can be particularly difficult to see when they are approaching from the side, primarily due to their smaller size and narrower profile compared to larger vehicles. When riders are traveling laterally, such as at intersections or when changing lanes, they may be obscured by other vehicles or simply overlooked by drivers who are accustomed to scanning for larger cars. This limited visibility increases the risk of collisions, especially at critical moments when drivers are making turns or entering intersections where the motorcycle may not be as easily seen until it's too late.

On the other hand, when motorcycles are parked along the road, they might be more visible as stationary objects. Being directly in front of another vehicle may present visibility challenges, but this situation might not be as dynamic and critical as when a motorcycle is approaching from the side. Lastly, when a motorcycle is in a designated motorcycle lane, it is purposefully set apart from regular traffic, making it relatively easier for other drivers to see. Thus, the side approach is crucial to consider for safety and awareness on the road.