in the Rastafarian colours of green, yellow and black. Some highway authorities in America including those in California, Honolulu and Salt Lake City have painted kerbs to denote parking or waiting restrictions. For example, in California, red kerbs denote fire lanes, where vehicle parking is prohibited. Painted kerbs have also been used to denote no parking restrictions in the approach to crosswalks. Across the US the painting of house numbers on road kerbs is relatively common. It can be run as a business and as a fundraiser for non-profit organisations. In some cases the practice is illegal, the kerb being considered the property of the highway authority. References Political art Politics of Northern Ireland