What is the main reason for avoiding routes with steep inclines during inclement weather?

Avoiding routes with steep inclines during inclement weather primarily addresses the risk of losing control of the vehicle. Steep slopes can be particularly hazardous when conditions are wet, icy, or snowy, as they can significantly reduce tire traction. This loss of control can make it difficult to steer or stop effectively, increasing the likelihood of accidents. The vehicle may slide or skid, especially when navigating downhill, creating a dangerous situation for both the driver and other road users.

While factors like increased fuel consumption and slower speeds can contribute to safety considerations, they are not the main reasons for avoiding these inclines. Engine overheating is also a concern, but it is less related to the immediate control of the vehicle in adverse weather conditions compared to the risk of losing control.