The size of traffic sign depends on different parameters

Retroreflective performance of traffic signage and equipment are described in following tables:

Table 1: Classes of reflectivity according to the light features of surroundings (Minimum coefficient of reflectivity for class RA3 is shown in table 2.).


Table 2: Minimum coefficient of reflectivity RA; class RA3 (unit cd.lx-1m2)