Uncomfortable situation in the road over the Julier-pass (Switzerland). On the basis of experiments (carried out by the author) regarding the abrasion of the rock, one can guess that about one million of carts would have passed through this rut (with the wheels blocked in the downhill traffic), if the ruts would have been worn out by their wheels. It is unlikely that such a traffic was performed with this uncomfortable tilt of 30 degrees. Probably, the valley-sided rut was chiseled first so that it came to the base of all fissures of the rock. The hill-sided rut was then not chiseled according to the plans and the tilt is due to the unfinished work. This means: there is an "alpha-" and a "beta-" rut, and : this road required personnel to hold the carts. Passing the alps with carts in this manner was probably a matter for the Roman military, while the civil cargo was transported on the back of pack animals.