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:
- ๐๐ฎ๐ง๐๐๐ฒ ๐๐ ๐๐ฎ๐ ๐ฎ๐ฌ๐ญ: ๐ง๐จ ๐ญ๐ซ๐๐ข๐ง๐ฌ ๐๐๐ญ๐ฐ๐๐๐ง ๐๐จ๐ญ๐ญ๐๐ซ๐ฌ ๐๐๐ซ ๐๐ง๐ ๐๐ญ ๐๐๐จ๐ญ๐ฌ/ ๐๐จ๐ฒ๐ฌ๐ญ๐จ๐ง, ๐จ๐ซ ๐๐๐ญ๐ฐ๐๐๐ง ๐๐๐ซ๐ญ๐๐จ๐ซ๐ ๐๐จ๐ซ๐ญ๐ก ๐๐ง๐ ๐๐ญ๐๐ฏ๐๐ง๐๐ ๐.
- ๐๐๐ญ๐ฎ๐ซ๐๐๐ฒ ๐๐ ๐๐ฎ๐ ๐ฎ๐ฌ๐ญ ๐๐ซ๐จ๐ฆ ๐๐๐๐ ๐ญ๐จ ๐๐ง๐ ๐จ๐ ๐ฌ๐๐ซ๐ฏ๐ข๐๐: ๐ง๐จ ๐ญ๐ซ๐๐ข๐ง๐ฌ ๐๐๐ญ๐ฐ๐๐๐ง ๐๐จ๐ญ๐ญ๐๐ซ๐ฌ ๐๐๐ซ ๐๐ง๐ ๐๐ข๐ญ๐๐ก๐ข๐ง/ ๐๐จ๐ฒ๐ฌ๐ญ๐จ๐ง, ๐จ๐ซ ๐๐๐ญ๐ฐ๐๐๐ง ๐๐๐ซ๐ญ๐๐จ๐ซ๐ ๐๐จ๐ซ๐ญ๐ก ๐๐ง๐ ๐๐ญ๐๐ฏ๐๐ง๐๐ ๐.
- ๐๐จ๐ง๐๐๐ฒ ๐๐ ๐๐ฎ๐ ๐ฎ๐ฌ๐ญ ๐๐ซ๐จ๐ฆ ๐ฌ๐ญ๐๐ซ๐ญ ๐จ๐ ๐ฌ๐๐ซ๐ฏ๐ข๐๐ ๐ญ๐จ ๐๐๐๐: ๐ง๐จ ๐ญ๐ซ๐๐ข๐ง๐ฌ ๐๐๐ญ๐ฐ๐๐๐ง ๐๐จ๐ญ๐ญ๐๐ซ๐ฌ ๐๐๐ซ ๐๐ง๐ ๐๐ญ ๐๐๐จ๐ญ๐ฌ/ ๐๐จ๐ฒ๐ฌ๐ญ๐จ๐ง, ๐จ๐ซ ๐๐๐ญ๐ฐ๐๐๐ง ๐๐๐ซ๐ญ๐๐จ๐ซ๐ ๐๐จ๐ซ๐ญ๐ก ๐๐ง๐ ๐๐ญ๐๐ฏ๐๐ง๐๐ ๐.
For full details of the affected services, please see the East Coast Digital Programme website here.
