A traffic sign with a blue and red cross at the bottom means no parking. No parking signs are usually set on crowded roads, allowing vehicles to stop temporarily, but it is forbidden to stop for a long time to affect traffic. No parking is a red circle with a red cross in it. No parking on the whole line. Long-term non-stop is a red circle with a blue background and a red diagonal line inside. However, because the shapes and background colors of the two signs are the same, it is easy to confuse them for a long time. Non-stop is very similar to non-stop for a long time. There is an x in one and an x in the other. These two signs are the most common on the roadside, but they are easily confused and should be distinguished. Parking is prohibited within a limited range, all vehicles are prohibited from parking temporarily or for a long time, and temporary parking is prohibited from parking for a long time. When driving, you must obey the traffic rules. When parking, you should distinguish whether you can stop. Don't block the traffic and affect others' travel.