Font size of no parking on fire climbing surface

the font size of no parking on the fire climbing surface is 1cm*1cm. The font color of no parking on the fire climbing surface is white. Because these signs need to convey information clearly, font size and color are very important. Smaller fonts and lighter-colored signs will be ignored by drivers, so they can't play a warning role. Therefore, the font size of no parking on the fire climbing surface is 1cm*1cm, which is neither too big nor too small, just right.