Every driver of a vehicle behind another vehicle shall leave a free space between the two vehicles to allow it to stop, in case of sudden braking, without colliding with it, taking into account in particular the speed and the conditions of adhesion and braking.
In addition, since this is an interurban road, the separation that must be kept by any driver of a vehicle circulating behind another vehicle without signaling his intention to overtake must be such as to allow the one following him to overtake him safely, except in the case of cyclists circulating in a group.