 After March 1916, along the of the "Voie Sacrée", transport vehicles were on the move day and night ferrying troops, armaments, and supplies to the Verdun battlefield.During the initial crisis of 21 February to 22 March, 600 trucks per day had already delivered 48,000 tons of ammunition, 6,400 tons of other materiel and 263,000 men to the battlefield.Beginning on February 21, all horse drawn traffic and troop movements on foot had been ordered off the road leaving it open for truck and motor car traffic only.