Pic: New sensors in Viljandi county

Optical road conditions monitors will be installed on three more intercity buses for the coming winter in the project by Estonian Road Administration, road technical services company Teede Tehnokeskus and private bus operator Lux Express. The sensors provide road maintenance companies with real-time information about the condition of roads.

The Baltic Times https://www.baltictimes.com/estonia__novel_road_condition_monitors_to_be_installed_on_intercity_buses/