The assignment deals with forestry and non-forestry traffic load of Potočnikovgraben and Fevča forest roads. Both roads are occupied seasonally, since they are passable only one half of the year. It has been astimated that the Fevča forest road, with its 324 arrivals per year, faces a usage frequency83% bigger than the Potočnikov graben forest road. The sum of all non-forestry traffic along the Potočnikov graben forest road is 689 arrivals of different vehicles on average per year, and 78 arrivals along the Fevča forest road, which is only arround 11% of the whole road usage frequency of the Potočnikov graben forest road. Also, if we sum up the forestry and the non-forestry usage of the Potočnikov graben forest road it is obvious that thePotočnikov graben forest road is with its 865 arrivals used for 55% more often than the Fevča forest road with its 392 arrivals. Since only the arrivals have been counted to estimate the usage frequency, the actual trafficusage frequency is a 100% bigger when we count in the departures. The average arrival of 689 vehicles of non-forestry traffic along the roads of Potočnikov graben cannot be considered extremely aggravating, but it shows theimportance of this forest road for the local inhabitants.