Major engineering works as part of the East Coast Digital Programme will affect Great Northern and Thameslink services between Potters Bar, St Neots and Royston and between Hertford North and Stevenage on Sunday 25 August, . Additionally, evening services from 22:00 on Saturday 24 August and early morning services on Monday 26 August until 09:00, will also be affected.
This is taking place because on Sunday 25th August, the first long-distance train will test the newly installed digital signalling system between Welwyn Garden City and Hitchin at high speed in preparation for trains to run on this route using digital signalling from late 2025. For the testing to be carried out under controlled conditions, the railway needs to be closed in and around the affected section, which will cause significant timetable changes on the affected days as follows:
- 𝐒𝐮𝐧𝐝𝐚𝐲 𝟐𝟓 𝐀𝐮𝐠𝐮𝐬𝐭: 𝐧𝐨 𝐭𝐫𝐚𝐢𝐧𝐬 𝐛𝐞𝐭𝐰𝐞𝐞𝐧 𝐏𝐨𝐭𝐭𝐞𝐫𝐬 𝐁𝐚𝐫 𝐚𝐧𝐝 𝐒𝐭 𝐍𝐞𝐨𝐭𝐬/ 𝐑𝐨𝐲𝐬𝐭𝐨𝐧, 𝐨𝐫 𝐛𝐞𝐭𝐰𝐞𝐞𝐧 𝐇𝐞𝐫𝐭𝐟𝐨𝐫𝐝 𝐍𝐨𝐫𝐭𝐡 𝐚𝐧𝐝 𝐒𝐭𝐞𝐯𝐞𝐧𝐚𝐠𝐞.
- 𝐒𝐚𝐭𝐮𝐫𝐝𝐚𝐲 𝟐𝟒 𝐀𝐮𝐠𝐮𝐬𝐭 𝐟𝐫𝐨𝐦 𝟐𝟐𝟎𝟎 𝐭𝐨 𝐞𝐧𝐝 𝐨𝐟 𝐬𝐞𝐫𝐯𝐢𝐜𝐞: 𝐧𝐨 𝐭𝐫𝐚𝐢𝐧𝐬 𝐛𝐞𝐭𝐰𝐞𝐞𝐧 𝐏𝐨𝐭𝐭𝐞𝐫𝐬 𝐁𝐚𝐫 𝐚𝐧𝐝 𝐇𝐢𝐭𝐜𝐡𝐢𝐧/ 𝐑𝐨𝐲𝐬𝐭𝐨𝐧, 𝐨𝐫 𝐛𝐞𝐭𝐰𝐞𝐞𝐧 𝐇𝐞𝐫𝐭𝐟𝐨𝐫𝐝 𝐍𝐨𝐫𝐭𝐡 𝐚𝐧𝐝 𝐒𝐭𝐞𝐯𝐞𝐧𝐚𝐠𝐞.
- 𝐌𝐨𝐧𝐝𝐚𝐲 𝟐𝟔 𝐀𝐮𝐠𝐮𝐬𝐭 𝐟𝐫𝐨𝐦 𝐬𝐭𝐚𝐫𝐭 𝐨𝐟 𝐬𝐞𝐫𝐯𝐢𝐜𝐞 𝐭𝐨 𝟎𝟗𝟎𝟎: 𝐧𝐨 𝐭𝐫𝐚𝐢𝐧𝐬 𝐛𝐞𝐭𝐰𝐞𝐞𝐧 𝐏𝐨𝐭𝐭𝐞𝐫𝐬 𝐁𝐚𝐫 𝐚𝐧𝐝 𝐒𝐭 𝐍𝐞𝐨𝐭𝐬/ 𝐑𝐨𝐲𝐬𝐭𝐨𝐧, 𝐨𝐫 𝐛𝐞𝐭𝐰𝐞𝐞𝐧 𝐇𝐞𝐫𝐭𝐟𝐨𝐫𝐝 𝐍𝐨𝐫𝐭𝐡 𝐚𝐧𝐝 𝐒𝐭𝐞𝐯𝐞𝐧𝐚𝐠𝐞.
For full details of the affected services, please see the East Coast Digital Programme website here.
