as of December 2020, aiming to be completed in 2027. An agreement has been reached and signed between the Oslo city government and the Norwegian state that would share the cost of 13 billion NOK equally between the city and the national government. Line T7 (proposed) Stations The system consists of 101 stations, of which 17 are underground or indoors. The only underground station on the pre-metro western network was Nationaltheatret, and most of the underground station are in the common tunnel under the city center, or in shorter tunnel sections on the eastern network; in particular the Furuset Line runs mainly underground, with all but Haugerud built in or at the opening of a tunnel. Stations in the city center are located close to large employment centers as well as connection possibilities to other modes of transport, such as tram, rail and bus. All stations can be identified at ground level by signs with a blue T in a circle. Stations outside the center are unmanned since the 1995, with ticket machines for fare purchase; some stations feature kiosks. A system of turnstiles have been installed, but will never be activated due to security issues. All stations have step-free accessibility through at least one entrance (except the inbound platform at Frøen), and the platform height is aligned with the train cars. Intermodality The metro is integrated into the public transport system of Oslo and Akershus through the agency Ruter, allowing tickets to also be valid on the Oslo Tramway, city buses, ferries, and the Oslo Commuter Rail operated by Vy. A new, wireless ticketing system, Reisekort, has in the recent years been implemented. As of June 2022, a single ticket for one zone (the entire metro system is in zone 1) costs NOK 39 for adults (a surcharge of 20 NOK is added if you buy onboard within zone 1); a 30-day ticket costs NOK 814 for adults. This includes all means of public transport within the zone where the ticket is first activated (again, for the metro, zone 1). There is a fine of NOK 950, or NOK 1150, for not having a valid ticket, depending on if the fine is paid on location or not. Oslo maintains a street tram system with six lines, of which two are suburban lines. The street trams operate mostly within the borders of the Ring Line, providing a frequent service in