section_path: Transport/Public transportation
section_name: Public transportation
paragraph_text: Public transportation
  
  Stockholm has an extensive public transport system. It consists of the Stockholm Metro (Swedish: Tunnelbanan), which consist of three colour-coded main systems (green, red and blue) with seven lines (10, 11, 13, 14, 17, 18, 19); the Stockholm commuter rail (Swedish: Pendeltåget) which runs on the state-owned railroads on six lines (40, 41, 42, 43, 44, 48); four light rail/tramway lines (7, 12, 21, and 22); the 891 mm narrow-gauge railway Roslagsbanan, on three lines (27, 28, 29) in the northeastern part; the local railway Saltsjöbanan, on two lines (25, 26) in the southeastern part; a large number of bus lines, and the inner-city Djurgården ferry. The overwhelming majority of the land-based public transport in Stockholm County (save for the airport buses/ airport express trains and other few commercially viable bus lines) is organized under the common umbrella of Storstockholms Lokaltrafik (SL), an aktiebolag wholly owned by Stockholm County Council. Since the 1990s, the operation and maintenance of the SL public transport services are contracted out to independent companies bidding for contracts, such as MTR, which operate the Metro. The archipelago boat traffic is handled by Waxholmsbolaget, which is also wholly owned by the County Council.
  
  SL has a common ticket system in the entire Stockholm County, which allows for easy travel between different modes of transport. The tickets are of two main types, single ticket and travel cards, both allowing for unlimited travel with SL in the entire Stockholm County for the duration of the ticket validity. On 1 April 2007, a zone system (A, B, C) and price system was introduced. Single tickets were available in forms of cash ticket, individual unit pre-paid tickets, pre-paid ticket slips of 8, SMS-ticket and machine ticket. Cash tickets bought at the point of travel were the most expensive and pre-paid tickets slips of 8 are the cheapest. A single ticket costs SEK 32 with the card and SEK 45 without and is valid for 75 minutes. The duration of the travel card validity depended on the exact type; they were available from 24 hours up to a year. As of 2018, a 30-day card costs SEK 860. Tickets of all these types were available with reduced prices for students and persons under 20 and over 65 years of age. On 9 January 2017, the zone system was removed, and the cost of the tickets was increased.