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Reflective
materials are specially designed materials that cast back
a certain quantity of light from their surface, in accordance
with their design and technical specifications.
In
everyday life, the reflection of light enables us to "see"
the things around us.
In
traffic, particularly under the conditions of reduced visibility,
it is necessary to make the vehicles better visible, which
is achieved by the use of reflective materials.
Traffic
signs in cities are made of material with the luminous intensity
of 70 candelas (Cd)*.
On
motorways and highways, traffic signs are made of material
whose luminous intensity is 250 - 600 Cd*.
Pursuant
to the Croatian norm of ECE R 70.01, the dimension plates
are made with the luminous intensity of 800 Cd*.
*
What is the candela (Cd)? · The candela is a
unit of luminous intensity, defined as the quantity of light
cast back from a certain surface.
E.g.:
- Traffic
signs in the city: luminous intensity 70 Cd
- Traffic
signs outside the city: luminous intensity 250 Cd
- The
plate in accordance with the norm 70.00: luminous intensity
250 Cd
- The plate in accordance with the norm 70.01: luminous intensity 800 Cd
Homologation sign:
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- Reflective
marker for contour marking; luminous intensity 550-800 Cd
- Reflective
marker for distinguishing marking; luminous intensity 150
- 450 Cd
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