The sign "Beginning of a 30 km/h zone" indicates that drivers are entering an area where the maximum speed limit is reduced to 30 kilometers per hour. This type of zone is often implemented in residential areas, near schools, or in places with high pedestrian traffic to enhance safety for all road users, particularly for children and cyclists.

When you see this sign, you must lower your speed to 30 km/h or less. It is important to remain particularly vigilant for pedestrians, cyclists, and other road users in these zones. Additionally, this speed limit applies until you see the sign indicating the end of the 30 km/h zone. Always keep an eye out for any additional local regulations or signs that may provide specific instructions pertaining to that area.