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ONE LANE ONLY WHEN USED BY TRUCKS Sign

ONE LANE ONLY WHEN USED BY TRUCKS Traffic Sign

The ONE LANE ONLY WHEN USED BY TRUCKS sign (WA-24A) is used in conjunction with the oversize NARROW STRUCTURE sign (WA-124), where commercial vehicles must drive in the centre of a road in order for the top of the vehicle to clear the opening of a structure such as a subway or tunnel.

MTO Book Location: Book 6, Pg. 57