Arrangement for road condition recognition

The invention relates to a system for recognizing road conditions, for use especially in a motor vehicle and comprising an infrared transmitter-receiver system. Advantageous measures are provided for which make it possible to separate signal fractions into different infrared wavelength ranges. This allows for the reliable evaluation of the conditions of the road section being monitored, using a simple and economical device. The infrared devices are preferably combined with a microwave device.