A Lidar measurement device for vehicular traffic surveillance and method for use of same are disclosed. The condenser element may be a condenser lens which is separate from the optical beam branching element. , a long term evolution system and a high rate packet data system, to reduce dormant sessions. The inventive method for removing corrosion products of a component is characterized in that a cleaning agent is applied locally, which removes the corrosion products by means of a gaseous reaction product.