Packed with information, the maps are printed on both sides, on paper that is waterproof and virtually indestructible. The colours used for the mapping have been chosen after research into what works best in different light conditions, so "Rough Guide" maps are easy to read under street lights, a true night-and-day design. Each map covers the main area of the city on one side and an enlarged downtown city centre map on the reverse. A comprehensive street index and clearly marked one-way streets and pedestrianized areas make the maps ideal whether you are on foot, using public transport or driving. Designed to be tough and immensely practical, as well as amazingly good value, they forge a new standard in city maps.