The West Coast Main Line (WCML) is the busiest mixed-traffic railway route in Britain, being the country's most important rail backbone in terms of population served. Fast, long-distance inter-city passenger services are provided between London, the West Midlands, the North West, North Wales and the Central Belt of Scotland. Since an upgrade in recent years, much of the line has trains running at 125 mph (201 km/h), thereby meeting the European Union's definition of an upgraded high-speed line. The WCML is the most important intercity rail passenger route in the United Kingdom, connecting London, Birmingham, Manchester, Liverpool and Glasgow and many smaller towns and cities. In addition, several sections of the WCML form part of the suburban railway systems in London, Birmingham, Manchester and Glasgow, with many more smaller commuter stations, as well as providing a number of links to more rural towns.
In 2008 the WCML handled 75 million passenger journeys. The WCML is also one of the busiest freight routes in Europe, carrying 43% of all UK rail freight traffic. The line is the principal rail freight corridor linking the European mainland (via the Channel Tunnel) through London and south-east England to the West Midlands, north-west England and Scotland. The line has been declared a strategic European route and designated a priority Trans-European Networks (TENS) route.