Travelling on a motorway at 120 km/h in heavy rain means travelling at a speed that is...

When we travel at a speed that does not adapt to the weather conditions or to the circumstances of the road, traffic, vehicle, or the driver's condition, we are travelling at an inappropriate speed. It is possible that the speed at which we are travelling is within the permitted limits for the road, but that in a problematic situation we have great difficulty controlling the vehicle. For example, on rainy days more accidents tend to occur because many drivers travel at the same speed as on a sunny day — that is, they travel at a permitted but inappropriate speed on rainy days.