Speed restriction measures

Speed limits

We can only introduce 20mph speed limits on roads where the average speed is below 24mph.

20mph speed limits exclude the use of any physical self-enforcing features and rely solely on signing and carriageway markings to encourage reduced traffic speeds.

20mph zones require the introduction of a series of physical traffic calming measures like speed humps and chicanes to address lengths of the road where average speeds exceed 24mph in order to effectively make the lower speed limit self-enforcing.

Entry points to 20mph zones are clearly marked using distinctive signing and carriageway markings.

Speed indicators

Speed indicators can either display vehicle speeds back to the driver or display the relevant speed limit.

We must get funding from townships before we can install any of these signs.​