84% of public transport use in the West Midlands is by bus. There are approximately 50 operators of registered local bus services in the West Midlands. The largest bus operator in the area is National Express West Midlands, which accounts for over 80% of all journeys. The company changed its name from Travel West Midlands in 2008 as a part of National Express' re-branding. National Express West Midlands operates a large network based on a range of services radiating out of Birmingham City Centre and the route 11 bus service, the longest urban bus service in Europe which chiefly follows the A4040 circular road.