Oslo is a relatively small city and parking is at a premium so a car is a bit of a liability. Fortunately, there is an extensive and superbly efficient public transport system involving buses, trams, subway, trains and ferries. The city is served by 50 bus lines and eight tram routes, all starting from Jerbanetorvet at Oslo S Station. The subway is called the Oslo T-Bane and there are five underground lines covering the city. All public transport runs from 5.30am to midnight, with tickets available from bus drivers or vending machines at stations. The Tourist Ticket allows for unlimited use within 24 hours, while the 1, 2, and 3-day Oslo Pass allows unlimited travel on any form of public transport, and includes free museum admissions and other discounts. Ferries operate on a seasonal basis, between April and September, linking the City Hall to the museum-studded peninsula of Bygdøy. There are also ferry services to the harbour islands. Metered taxis are easy to come by, and can be found at ranks near shopping centres, city squares, stations and other gathering points. Cabs can also be ordered by telephone from a central office, or from taxi ranks. Much of the city is compact enough to explore on foot.
Local time is GMT +1 (GMT +2 between the last Sunday in March and the last Sunday in October).
Electrical current is 230 volts, 50Hz. Round two-pin plugs are in use.
The official currency is the Norwegian Krone (NOK), divided into 100 ore. Larger establishments accept major credit cards. Use of credit cards is widespread, with Eurocard/Mastercard, Visa, American Express and Diners Club the most common. Foreign currency can be exchanged at banks and major post offices, as well as many hotels and travel agents, although for poorer rates. ATMs are available in all towns and cities.
The international access code for Norway is +47. Local operators provide GSM 900 mobile phone networks and cover most of the country. Internet cafes are widely available.
Emergencies: 112 (Police); 113 (Ambulance); 110 (Fire).
An Airport Express train and a variety of taxis go to the city centre. An airport bus travels between the Oslo Bus Terminal downtown and the airport.
Car rental companies include Avis, Budget, Europcar and Hertz.
Taxis are available to the city centre.
Facilities at the airport include banks, bureaux de change, ATMs, left luggage, duty-free shopping, tourist information and a hotel reservation kiosk. Business facilities are available. There is a selection of bars, shops and restaurants.
Outdoor and indoor parking is available for a fee at Oslo Airport (with outdoor parking the cheaper option).
Free wifi is provided in two hour sessions.