have also operated on a reduced frequency several times whilst work has been undertaken on the Citylink fleet. Potential return to public ownership On 18 October 2022 the South Yorkshire Mayor Oliver Coppard announced that the service will return to public ownership once Stagecoach's operating contract expires in March 2024 alongside a £100 million grant by the central government to modernise parts of the system. Summary of opening dates 21 March 1994: Fitzalan Square to Meadowhall 22 August 1994: Fitzalan Square to Spring Lane 5 December 1994: Spring Lane to Gleadless Townend 18 February 1995: Fitzalan Square to Cathedral 27 February 1995: Cathedral to Shalesmoor 27 March 1995: Gleadless Townend to Halfway 3 April 1995: Gleadless Townend to Herdings Park 23 October 1995: Shalesmoor to Middlewood/Malin Bridge 25 October 2018: Tinsley/Meadowhall South to Parkgate (tram-train) Current network Routes The South Yorkshire Supertram network is organised around Park Square and consists of four lines - Yellow, Blue, Purple and Tram-Train (black on maps) The lines, with termini at Meadowhall Interchange, Parkgate, Halfway and Hillsborough, all serve Sheffield city centre and meet at Park Square where a triangular junction was constructed to provide interchange between lines and operational flexibility. A pair of small branches serving Malin Bridge, from Hillsborough Interchange, and Herdings Park branch out from two of the main lines. The Supertram runs from Sheffield City Centre north-west to Middlewood and Malin Bridge via the University of Sheffield and Hillsborough; north-east to Meadowhall Interchange and Rotherham Parkgate via Attercliffe; and south-east to Halfway and Herdings Park via Norfolk Park, Manor, and Gleadless. The three main City Centre stops are located on one side of a former dual carriageway, now a single lane and reserved for buses and taxis only. These three stops are served by all routes. Stops The tram stops on each of the four routes are as follows: Frequencies The off-peak daytime frequencies are: Yellow Line - 12 minutes Blue Line - 12 minutes Purple Line - 30 minutes Tram Train - 20 minutes A reduced level of service was introduced across the Supertram network on 23 March 2020, in response to the COVID-19 pandemic in the United Kingdom. A modified Sunday timetable was in operation, until services were further reduced to hourly on 1 April. Onward transport links Stagecoach Sheffield formerly operated the SL1 and SL1a "SupertramLink" routes between the Middlewood terminus of the yellow route and Stocksbridge,