Since winning the franchise in 1996, Chiltern Railways has run scheduled passenger services along the M40 corridor between London Marylebone and Birmingham Snow Hill and London Marylebone to Aylesbury via Amersham along the London Underground Metropolitan line As one of the franchises forming the UK's National Rail network, we're dedicated to providing passengers with a safe, reliable, welcoming and value for money service which offers a real choice and a viable alternative to other modes of transport