This sign warns the driver that on a section of motorway or dual carriageway:

This sign warns the driver that on a section of motorway or dual carriageway:
A)Heavy vehicles are prohibited from travelling throughout the indicated section.
B)Passenger cars are required to reduce their minimum speed to match that of lorries.
C)There is a risk of rear-end collisions because lorries travel more slowly on uphill gradients.Correct
The sign warns of a specific hazard on motorways or dual carriageways with uphill gradients, where lorries and heavy vehicles travel at speeds considerably lower than those of passenger cars. This difference can cause rear-end collisions if drivers do not adjust their driving accordingly. The sign aims to make road users exercise extreme caution, increase their safety distance, and be alert to speed differences in order to avoid accidents.