The Roadway Natural and Man-Made Noise Environment

This paper presents a summary of the available measurement information on the level and statistical characteristics of the background natural and man-made noise likely in high way and other high traffic density locations. The frequency ranges of around 100 MHz and 0.9 to 3 GHz are covered since these frequency ranges are those of current interest for “intelligent highway” telecommunication systems. The highway noise environment in these frequency ranges is due primarily to automotive ignition systems (and power lines at 100 MHz). The noise is non-Gaussian in character.