The Northern City Line (NCL) is a commuter railway line in England, which runs from Moorgate Station to Finsbury Park in London with services running beyond. It is part of the Great Northern Route services and operates as the south-eastern branch of the East Coast Main Line (ECML). It is underground from Moorgate to Drayton Park in Highbury, from which point it runs in a cutting until joining the ECML south of Finsbury Park. Its stations span northern inner districts of London southwards to the City of London, the UK’s main financial centre. Since December 2015, its service timetable has been extended to run into the late evenings and at weekends, meeting a new franchise commitment, for a minimum of six trains per hour until 23:59 on weekdays and four trains per hour at weekends. Route Map: Stations: 6 Termini Finsbury Park Moorgate Rolling Stock: Great Northern Class 717 Desiro City EMU Length: 3.5 miles (5.6 kilometres) Track Gauge : 1,435 mm(4 ft 8+1⁄2 in) Electrification: 25kV 50 Hz AC (north of Drayton Park) 750 V DC third rail (south of Drayton Park)
3.5 miles is borderline pointless so this route should go to Stevenage via the Hertford loop so you could complete a full end-to-end service on this route. Another benefit for the line to Stevenage is that you'd be able to run freight services with layers. I'm onboard with this route coming to the game though, because I have a nagging feeling it won't be included with ATS' ECML: Kings Cross route.
