Restriction Plates
A restriction plate is never a sign on its own — it’s a small rectangular plate mounted directly below a full sign, narrowing exactly when, to whom, or under what condition that sign’s rule actually applies. Miss the plate, and you’ll misread the sign above it as stricter (or looser) than it really is.
How to read it: the sign above says “No Parking.” The plate below it says “60 MIN.” Together, they mean: you may park here, but only for up to 60 minutes — the plate has converted a full prohibition into a time-limited allowance. Read the sign and its plate as one instruction, never separately.
Time-based plates
Narrow a sign to specific hours or days.
Parking-specific plates
Turn a “no parking” sign into a limited or paid allowance.
Vehicle and access qualifiers
Restrict a sign to a mass, engine size, or type of access.
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