Originally, two through roads allowed non-stop running clear of the platform roads. Radical cuts on the Chiltern Main Line and Great Central Main Line in the 1960s left the station with only two usable platforms - the current platforms 1 and 2. In 1998 to increase capacity on the line Chiltern Railways reinstated platform 3, the down platform, on top of the old down platform road, in a manner similar to that at West Ruislip. Fragments of the original down platform are still visible at the station. The 'up' through road, removed from service as part of previous drastic running-down of the route which left only two usable platforms, was restored in September 2011 as part of Chiltern's Evergreen 3 upgrade project.