Aylesbury Aylesbury Vale Parkway Bicester Bicester North Bicester Village Chiltern Railways Disruption Gerrards Cross Haddenham & Thame Parkway High Wycombe London Marylebone Network Oxford Princes Risborough Rail News Saunderton Chiltern Railways warns of severe disruption in January for London – Birmingham services Guest authors January 4, 2025 0 Chiltern Railways train services between London Marylebone and Birmingham will be severely disrupted for the next two weekends.