Quote:
Originally Posted by Azur
https://www.drivingtesttips.biz/low-bridge-signs.html
Height restriction warning sign with metric units
Warning signs are triangular with a red border (see warning signs for further examples) and can be used to indicate a low bridge or obstruction in imperial or metric units. Two signs detailing both units may also be used.
Height restriction warning signs may be situated well in advance of the low bridge and may include distance to the hazard on a separate plate.
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but why a big triangle and a little triangle?
macafee2