The general speed limit tolerance has been 10km\/h for automated cameras, however, according to the police, this has been reduced and they are remaining tight-lipped about what the actual tolerance is. There is no official tolerance used by road police and they have the power to prosecute for as little as 1km\/h over the speed limit, so you should aim to keep below the speed limit.<\/p>\n\n\n\n
Areas around school zones have a lower tolerance of 4km\/h. This is because school zones are signposted at 40km\/h and a 10km\/h tolerance would simply allow drivers to maintain a speed almost that of the urban national road limit.<\/p>\n\n\n\n
During holiday periods police have previously announced that the tolerance is reduced from 10km\/h to 4km\/h nationwide or in specific regions, but for all we know, the tolerance might now permanently be somewhere around 4-5km\/h.<\/p>\n\n\n\n
Vehicle speedometers are deliberately inaccurate, overreading by several percent. It’s not uncommon for a car that reads 55km\/h on the speedo to be doing 50-51km\/h. Therefore that cannot be used as an excuse for speeding.<\/p>\n\n\n\n
There are many GPS apps for your phone which will give you a readout of your speed accurate to around 1km\/h.<\/p>\n\n\n\n