Cleaning the tunnels on the Northern City Line (photo: GTR)
Work on the tunnels between Drayton Park and Moorgate has now been completed and all services on the Hertford Loop via Palmers Green now start or end at Moorgate.
Work to clean the tunnels, replace rails and ballast and smarten up stations on the "Northern City Line" section began in December and led to diversions into Kings Cross in the evening and at weekends, severing the useful connections at Highbury & Islington.
However, what would until three months ago have been important news, for many of us now seems rather inconsequential!
There are more details of the work carried out on the excellent Ian's Visits website.