North London could be getting a new Overground line

"According to the government's New Towns Report published in autumn, TfL could take over part of the Great Northern route called the 'Great Northern Inners'. The route runs from Moorgate to Alexandra Palace via Finsbury Park, before splitting towards Welwyn Garden City and Stevenage via Hertford North. If the proposal is accepted, the route may become part of the London Overground."

"According to a Freedom of Information request submitted by , TfL's business case says it could double the frequency of Welwyn off-peak services from two to four trains per hour. TfL also wants to increase the Hertford North service to six per hour, meaning there could be one train every 10 minutes."

"The upgrades could see the stations along the route get a TfL makeover, with new branding, roundels, seating, ticket machines and departure display screens. Transport honcho estimate the takeover could cost around £47 million, which could rise to £70 million if Crews Hill were to get a major upgrade to support all the planned new housing for the area. If it gets approved, Finsbury Park, Essex Road and Alexandra Palace stations could all become part of the London Overground."

TfL could take over the Great Northern Inners route from Moorgate to Alexandra Palace, splitting towards Welwyn Garden City and Stevenage via Hertford North. The business case proposes doubling Welwyn off-peak services from two to four trains per hour and increasing Hertford North to six trains per hour, providing roughly one train every ten minutes. A prior suggestion sought 12 trains per hour to Moorgate in peak times and 14 in the busiest periods, but that would require complex timetable work and station upgrades. Station branding, seating, ticket machines and display screens are proposed, with estimated costs of £47–70 million and a target takeover in autumn 2027.

Read at Time Out London