This is a map of the Motorways and A-roads of the UK. The roads have been colour coded according to their annual average daily traffic flow (AADT). This is the total number of vehicles that use the road over the course of a year divided by 365. On this map red indicates a large number of vehicles per day, whereas green means a smaller number. Click on any segment to find out more details about that particular stretch of road. The map uses data acquired from data.gov.uk, the British Government's official data website. Please note, due to the very detailed nature of this map, certain features will only appear when you are sufficiently zoomed in.