It is an active illuminated technology that complies with MUTCD standards.Optical forms include by I-ROAD technology: retroreflective, panel display active illuminated, point or line light emission.

The LED light source shines through the fluorescent yellow-green reflective film, displaying a more striking color.

Perfect!LED dot matrix luminous signs on the streets of Paris

Illuminating pedestrians and actively glowing

Curve guidance signs are placed on road sections with smaller turning radii. Optical forms include: retroreflective, panel display active illuminated, point or line light emission.

Road ahead curves gradually, Be prepared for the change in direction.

Advance warning signs indicate railroad tracks cross the road ahead

A yield sign means you must slow down  and yield the right of way to traffic in  the intersection you are crossing or  roadway you are entering.