FIELD: motor road signs. SUBSTANCE: this relates to devices used for serving motor roads, road building sites, especially where traffic flows should be directed to carriage way which is branched from main road. Threshold 1 for guiding sign 2 at its upper side has one part of connecting unit 3, and other part of this connecting unit is located on guiding sign. Additional connecting unit has its parts located on end-faces of threshold for connecting it with other thresholds in longitudinal direction. Threshold in zone of its upper side is made narrower than in zone of its lower side. In zone of upper side and in section of both side faces adjacent to it, threshold is made convex or tangential to preceding sections. Protrusion is provided in zone of each side face. EFFECT: higher efficiency. 3 cl, 7 dwg
