Passenger services on the line are operated by Northern Trains, East Midlands Railway and TransPennine Express, while the quarries around Hope, producing stone and cement, provide a source of freight traffic.This third route was closed along with Manchester Central, apart from the section through Disley Tunnel to Hazel Grove, where it now joins the old LNWR line into Stockport.[3] The terrain through Hope Valley and the Vale of Edale was easy enough by Midland standards, but at each end there were formidable obstacles, negotiated by means of the Totley and Cowburn Tunnels.[9] When in 2000, proposals for a large-scale extension of Metrolink were announced by the government, these still did not include conversion of the Hope Valley line; but, subsequently, planning documents from Network Rail and from the Greater Manchester Passenger Transport Authority have suggested that this route might be appropriate for tram-train operation, and, as such, it was suggested to the Department for Transport as a possible location for a national tram-train pilot.[10] On 1 August 2019, the line was closed between Marple and Sheffield amid fears that the dam at Toddbrook Reservoir would collapse, following heavy rain, which would flood the town of Whaley Bridge.[13] Nottinghamshire County Council and the Department for Transport have investigated the possibility of adding another service that does not call at Sheffield in order to improve the journey time between Nottingham and Manchester.[22] The work includes creating a 3,600 feet (1,100 m) passing loop between Bamford and Hathersage, and adding a second track and platform at Dore and Totley station.