H Additional shields

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H Additional shields

A rectangular additional plate can be used below the traffic sign to clarify the purpose or target of the traffic sign. The additional shield can also be used to define the effect area or validity period of the mark or to limit the effect.


Pictures of service destination signs

You can see the explanations of the road signs when you click on the picture of the road sign. Explanations can also be found in the Road Traffic Act. You can familiarize yourself with the new road traffic law on Finlex's website.


Sizes of standard traffic signs

- triangles and hexagons 900 mm and 600 mm

- round 640 mm and 400 mm

- squares 600 x 600 mm and 400 x 400 mm


Reflectance classes of road sign film types

- R1, R2 and R3, the higher the number, the higher the reflectivity


Authorization processing

Generally, installing a sign requires a permit. The permit document specifies e.g. size, color and reflective film of the sign.

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