The purpose of the 'Single File Traffic' sign plate is to indicate that traffic should proceed in a single line, even if the road was previously divided into multiple lanes
This specific traffic sign, labelled as diagram 518, is used alongside left or right road narrow signs
It is commonly employed on roads with lower speed limits.
For comprehensive and accurate instructions regarding the usage and placement of this sign, it is recommended to refer to the government guidelines
Please note this product is for the sign face only, quick fit frames are sold separately