In what situation should a motorcyclist avoid making a U-turn?

A motorcyclist should avoid making a U-turn in heavy traffic or on narrow roadways due to the increased risk involved. Heavy traffic reduces the available space and increases the likelihood of being involved in a collision, as vehicles are closely packed and may not expect a motorcyclist to make such a maneuver. Additionally, narrow roadways can limit visibility and may not provide enough space for a safe U-turn, making it challenging to complete the turn without posing a danger to oneself or other road users.

In contrast, open parking lots typically provide more space and visibility for such maneuvers, while wide, empty roads present fewer hazards, allowing for more safe U-turn opportunities. When no other vehicles are around, the risk is significantly diminished, making those scenarios more favorable for U-turns.