NOVEL ROAD MARKINGS FOR ASSISTING THE PERCEPTION OF THE SURROUNDINGS OF VEHICLES

摘要

The present invention encompasses an innovative concept for the marking of trafficways, more particularly roads. The application qualities and lifetime of these new markings are comparable with those of the prior art. The markings also possess properties comparable with those of the prior art in respect of night visibility, back-in-service time, and surface quality. An additional contribution of the markings of the present invention, however, is that they can be used to support modern driver assistance systems and autonomous driving. With this in mind, the present invention relates more particularly to road markings which, building on established systems, are equipped with additional reflection capacity for electromagnetic radiation, more particular for microwaves and/or infrared radiation.

主权项

1. A radiation-reflecting road marking comprising:
spherical metal particles having a diameter d of between x*0.7*λ/π and x*1.3*λ/π and/or cylindrical metal particles having a length/width ratio between 2 and 100 and a length 1 between y*λ/1.8 and y*λ/3, λ being the wavelength of the radiation to be reflected, x being an integer between 1 and 6 and y being an integer between 1 and 20.