A system and apparatus for detecting and evaluating surface conditions on a road
surface and atmospheric conditions simultaneously from a vehicle is disclosed.
The system comprises a sensor for detecting the presence of deposited material
on a road surface, a detector for determining one or more characteristics of the
deposited material such as freezing temperature, process means for converting a
detected signal and display means for displaying the condition of the road surface,
and a sensor for detecting falling precipitation. An embodiment of the present
invention includes a remote sensing apparatus which utilizes electromagnetic radiation
to sense actual surface material conditions, temperatures, and composition and
local atmospheric conditions at the vehicle as it is moving over a travel surface.
This information is then processed through a computer in order to determine those
additional steps necessary to apply additional materials to the road surface in
order to minimize hazardous driving conditions.