What must you remember when you see this traffic sign?

This traffic sign indicates a restriction related to parking. The presence of a red background typically signals that certain actions are prohibited. In this case, it generally means that vehicles are not allowed to be parked in that area.

When you come across this sign, it's important to understand the implications:

1. **Parking Restrictions**: Vehicles must not be parked in the specified area to ensure the flow of traffic and maintain safety.

2. **Enforcement**: Ignoring this sign can lead to fines or penalties, especially if there are local regulations enforcing these restrictions.

Overall, this sign is crucial for maintaining order on the roads and ensuring that all road users can travel safely without obstruction.