The aim of the paper is to make the road experts familiar with the project ?Basis of the truck weighting conception in the Czech Republic?. The mentioned project will run in the years 2005-2007. It should provide data and draft conception for weighting and successive penalization of overweight vehicles travelling on the roads in the Czech Republic. The paper contains an analysis of the data gained from the weighting device that is stationed on the D1 highway in front of the Sedlice bridge. (en)