What is the consequence of parking on a crosswalk?

Parking on a crosswalk can indeed obstruct pedestrian traffic, which is the reason why this choice is the correct one. Crosswalks are designated areas meant specifically for pedestrians to safely cross the road. When vehicles are parked on or too close to a crosswalk, it creates barriers that can force pedestrians to navigate around the vehicle, potentially putting them in danger. This practice not only hinders the flow of pedestrian traffic but can also lead to accidents, as drivers may not see pedestrians waiting to cross or those crossing from behind the parked vehicle.

The discussion surrounding the other options clarifies why they do not hold true. Parking on a crosswalk is not considered a minor violation; rather, it is a significant concern as it directly impacts pedestrian safety. Additionally, it is not allowed with a permit; permits typically do not grant exceptions for parking in areas that obstruct pedestrian pathways. Lastly, encouraging parking in busy areas would contradict the safety measures intended for both vehicles and pedestrians and would instead create further hazards at congested locations.