This system displays information on traffic control and disasters, and other information relevant to road restrictions for drivers in running vehicles. Further, it can automatically display information on possible road surface freezing, etc., by interlocking with a thermometer, etc.
Road Information Board (General National Highway)
This system consists of character and temperature indicators, machine-side devices, boxes containing phones, and temperature sensors installed along roads leading to mountainous areas. It realizes the display of character telops, the collection of local temperature information, etc., through remote operation at a management office.