Service Disruptions Ahead
Chiltern Railways is facing significant disruptions as essential engineering work is scheduled on the Chiltern Main Line between March 14 and 15, 2026. During this period, no services will run into or out of London Marylebone, impacting thousands of commuters.
Impact of Recent Incident
The situation has been exacerbated by a tragic incident on March 9, 2026, when a person died after a track incident at Northolt Park station. This event led to the closure of all Chiltern Railways lines between London Marylebone and Princes Risborough, resulting in severe delays of up to 120 minutes across the line.
Engineering Work Details
The upcoming engineering work aims to replace old rail sleepers with new concrete ones and update track and ballast. Additionally, work will be conducted on track switches and crossings approaching London Marylebone. These upgrades are essential for ensuring trains run reliably and on time, as noted by Neil Gaskin, a spokesperson for Chiltern Railways.
Alternative Transport Arrangements
To mitigate the impact of the service disruptions, rail replacement buses will operate between Bicester North and Bicester Village, as well as between Gerrards Cross and Hillingdon. This alternative transport option aims to assist passengers during the engineering work.
Customer Concerns
Michael Stewart, another representative from Chiltern Railways, acknowledged the inconvenience caused by the complete halt of services to and from London Marylebone for an entire weekend. He emphasized the importance of the engineering work for the long-term reliability of the service.
Looking Ahead
The engineering work is designed to improve reliability and provide smoother services for years to come. However, details remain unconfirmed regarding any further developments or additional impacts on the service following the completion of this work.


