What is a primary cause of motorcycle accidents at intersections?

The primary cause of motorcycle accidents at intersections is drivers failing to see the motorcyclist making a left turn. This issue arises because many car drivers are not accustomed to checking for motorcycles, particularly due to their smaller size and speed. When a motorcycle is making a left turn at an intersection, the likelihood of being in a driver's blind spot increases, which can lead to collisions. The inattentiveness of drivers towards motorcycles during critical moments, such as turns, contributes significantly to the risk of accidents.

Improper signaling, speeding through intersections, and excessive lane changing are important factors for safe riding practices, but they do not directly address the common situation where a collision occurs due to a driver's failure to perceive a motorcycle in motion or at a stop. The most critical challenge at intersections involves the visibility and awareness of both motorcyclists and other drivers.