Construction of highways and railroads including major repair and reconstruction of roadbed and coverings, protective constructions and arrangement of highways technical categories III, IV and V  and also carriageway of settlements streets which are not trunk; roadbed and coverings, protective constructions and arrangement of highways technical categories I and II also intracity trunk roads of high-speed and adjustable movement, carriageway of city trunk streets of continuous and adjustable movement; roadbed and upper structures of railway tracks.