Control signs are used to control the actions of drivers and traffic flow. They include traffic flow control signs that regulate the movement of traffic, command signs that tell you what to do, and also prohibition signs that indicate what is not allowed. It is an offence to disobey any of these signs. If you do so, you can be fined. There are temporary versions for some of these signs and they have yellow, red and black colour combinations. Control Road signs are used to guide drivers and pedestrians on the road. The signs are put in place by the government or a private company to help you drive through a city or town.