To modernise the service, a new Watford DC Line was built alongside the main lines and Bakerloo line trains, and electric trains to Broad Street started in 1917. Electric trains to London Euston began running in 1922. Since 1917, there have been six platforms at what is now Wembley Central station. In 1880, the Metropolitan Railway opened its line from Baker Street through the eastern side of Wembley, but only built a station, Wembley Park, in 1894. There are now three physically separate services, the London to Aylesbury Line, the Metropolitan line, and the Jubilee line. Only the latter two services have platforms at Wembley Park station.