(57) A road-marking strip and a road marking system with this strip for providing information
to motorists on the road. The system includes the combination of transmitting and
receiving active electronic components, typically "secondary radar" aboard the vehicle
and designed for emitting energy in the direction of travel along the road, passive
components which are located beneath the prefabricated strip and designed for returning
said energy to the receiving components on board of the vehicle, and horizontal road-marking
light-reflective components also formed on that strip and designed for positively
providing optical information to the motorist; in a system as above an automatic arrangement
for coding and decoding the provided information, operated in conjunction with active
electronic components on a vehicle and including synchronizing marking components,
key marking components and code marking components positioned on the marking one after
another.
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