Electronic devices, namely, roadway sensors and video traffic detection systems comprised of analog or digital video cameras, image processing software and equipment, and input/output distribution devices used to acquire an image of a roadway and to analyze the image to determine the presence of vehicles on the roadway and characteristics of the vehicles such as speed, direction, and type of vehicle, and to use the image and data derived from the image as inputs to traffic control devices, traffic management systems, and traffic information systems; [ automotive sensors for acquiring images of the environment in or around a vehicle, for processing the images to determine information such as vehicle position on the roadway, location/speed/direction of other vehicles or objects, lighting conditions, precipitation, and for using the images and information derived from the images as inputs to automotive devices to provide driver alerts or warnings and to operate automotive equipment such as headlights and wipers; ] and computer software for collecting, analyzing, distributing and displaying roadway traffic information and operating roadway traffic management systems