 On 7 August 1888, less than two weeks before the authorisation was to expire, the directors of the Oxford, Aylesbury and Metropolitan Junction Railway Company received Royal Assent for a revised and cheaper version.To be called the Oxford & Aylesbury Tramroad (O&AT), the new scheme envisaged the extension's being built to the same light specifications as the existing tramway.To avoid expensive earthworks and tunnelling, the line would parallel a road out of Brill, despite the considerable gradients involved.