What should a motorcyclist be alert for when passing parked cars?

When passing parked cars, it is crucial for a motorcyclist to be aware of the potential for parked vehicles to pull out into traffic. This scenario poses a significant risk because drivers of parked vehicles may not see the motorcyclist approaching, especially if they are in the process of opening a door or exiting the parking space. Such movements can occur suddenly and without warning, potentially leading to collisions.

While being alert for other motorcycles, pedestrians, and door openings is also important, the immediate danger posed by a vehicle pulling out is heightened due to the lack of visibility and communication from the driver who might not anticipate the presence of a motorcyclist close by. This context is essential for motorcyclists to maintain a safe distance and be prepared to react quickly to avoid accidents.