CBRD Chriss British Road Directory is dedicated to the study of the entire road network of mainland Britain. These days theres a lot of sites on this subject but CBRD remains the biggest, the most comprehensive and the most frequently updated. It contains information on most aspects of the network and is frequented by enthusiasts, officials, engineers and everyday road users alike. I aim to make the information on the site accessible to everybody, both in the way its written and the way its presented.

Website: http://www.cbrd.co.uk/reference/interchanges/