Over the years, various schemes were considered to extend the Metropolitan line into the centre of Watford, including an abandoned plan in 1927 to open a Metropolitan Railway station on the High Street, . In 1948, the London Transport Executive (LTE), part of the British Transport Commission, considered a proposal to link the Metropolitan line to the BR Croxley Green branch line. A similar proposal was put forward by London Regional Transport (LRT) around 1994. Because the line lay entirely within Hertfordshire, it was championed by the county council who lobbied for funding from LRT (later TfL) and the Department for Transport for 16 years.