What must you remember when you see this traffic sign?

This traffic sign indicates that drivers must use snow chains for better traction on icy or snowy roads. It is crucial during winter conditions, especially in mountainous areas where snow and ice are prevalent.

In this context, it's also important to note that the maximum permissible speed of 50 km/h applies in situations where snow chains are used. This speed limit helps ensure safety as driving too fast with snow chains can lead to loss of control. Therefore, both aspects—using snow chains and adhering to a speed limit—are essential for safe driving under these conditions.

Ignoring either requirement can increase the risk of accidents.