Parking in the **middle of the roadway** is considered a serious obstacle to traffic. This is because a vehicle in this position prevents the passage of other vehicles, which can cause congestion and increase the risk of accidents. Additionally, a vehicle parked in the middle of the roadway can block the visibility of traffic signs and make it difficult for other drivers to maneuver.

On the other hand, although parking in **double parking** or in an **area designated for exclusive use by disabled persons** is also problematic, these situations are not considered as serious an obstacle as leaving a vehicle in the middle of the roadway. Double parking is dangerous, but it does not completely block the passage, and parking in a disabled area is an infraction that affects a specific group of people, but not necessarily the general traffic flow.