Traffic ability of heavy vehicles on an incline

Illustrations © Torgeir Vaa

Traffic ability of heavy vehicles on steep hills is of great concern in Norway due to its geography, which is characterized by many mountain passes and inclines. Vehicles stopping in the roadway are a significant problem on many roads in winter time, and this has led the Norwegian Public Roads Administration to implement a project that begins to examine what factors influence the ability of trucks to keep moving under poor driving conditions during the winter season.