The ambition to extend the Metropolitan line into Watford town centre was revived around 1994 by London Regional Transport (LRT) when proposals were put forward to run the line to Watford Junction. The projected route was shown on an adapted version of the Tube map for internal planning purposes printed in that year. This project, known as the Croxley Rail Link, involved connecting the Metropolitan line to the disused Watford and Rickmansworth Railway line and reinstating the branch to . The line, opened in 1912, had been closed by British Rail in 1996 owing to low passenger numbers. Although it ran very close to the Metropolitan line (at its closest point about 200 metres away), the two lines were never linked. The plan was to connect the two lines via a short viaduct. The Croxley Rail Link project would have resulted in the closure of Watford station.