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Røyken is a railway station on the Spikkestad Line and is located in Røyken, Norway. The station was opened as part of Drammenbanen in 1872 and was for many years the only railway station in Røyken. The station was located close the old Church in Røyken (from 1229). The station is served by commuter trains to Oslo Central Station and onward to Lillestrøm. The distance to Oslo S is 33 kilometers (21 mi) and the travel time is 45 minutes.

Røyken Upper Secondary School (Norwegian: Røyken videregående skole) is an upper secondary school situated in Røyken, Viken county, Norway. The school was established in 1978, and the first Headmaster was Olav J. Aadnekvam. The present Headmaster is Ole K. Sageng, and the present Deputy Headmaster is Ellen Watkinson. About 800 pupils attend the school, which offers 7 different programs in the Norwegian upper secondary school system. Røyken videregående skole is an UNESCO-Associated Schools Project school, and offers several international exchange programs. Catherine Coleman (who became a NASA astronaut)(USA) and Una Tomasevic (Yugoslavia) were exchange students to Røyken videregående skole during the 1978–79 school year. About 800 pupils attend the school in 38 classes. The school offers a wide range of teaching programs in both vocational subjects and study preparatory education programs. Røyken Upper Secondary School cooperates with many companies in the placement of professional students in practice, and has a good cooperation with various institutions that contribute to the teaching. The school also has close contact with schools abroad and has regular student exchange projects every year.

Røyken Church (Norwegian: Røyken kirke) is a church in the Asker municipality in Akershus county, Norway. Røyken Church serves Røyken parish in the Lier rural deanery of the Church of Norway.

Hallenskog Station (Norwegian: Hallenskog holdeplass) is a closed railway station located at Hallenskog in Asker, Norway on the Spikkestad Line. The station was opened as part of the Drammen Line in 1959, but in 1973 the new Lieråsen Tunnel opened through Lieråsen, and the old part of the Drammen Line was transformed to a commuter train line. The station was served by the Oslo Commuter Rail to Oslo Central Station and onward to Lillestrøm. Hallenskog is primarily a residential area.

Røyken is a district and village (bygd) and a former municipality in Buskerud in Viken County, Norway. In 2020 Røyken was merged with the municipalities of Hurum and Asker to form the new Asker Municipality (informally called "Greater Asker") located in the newly formed Viken county. The administrative centre of the municipality is the village of Midtbygda. The parish of Røken was established as a municipality on 1 January 1838 (see formannskapsdistrikt). Oslo ATCC, the Area Control Center for the controlled airspace above Østlandet is located here.

Oslo Air Traffic Control Center or Oslo ATCC (Norwegian: Oslo Kontrollsentral) is responsible for the controlled airspace above Eastern Norway. The area control center is located in Røyken, between Oslo and Drammen. The Control Center is owned and operated by Avinor Flysikring, a subsidiary of the state enterprise Avinor. Avinor's board had originally decided to close Oslo ATCC in 2008, transferring its responsibilities to Stavanger ATCC and a planned new terminal control center at Oslo Airport, Gardermoen. However, new management first postponed the actual closing, by redefining Oslo ATCC as an approach control with surrounding feeder sectors. In 2013 Avinor decided to create Norway ACC, consisting of the centres in Bodø, Stavanger and Røyken, billed as one ATC unit with three separate locations. Oslo ATCC is served by, amongst others, Haukåsen radar, Vardåsen radar, the airport radar at Oslo Airport, Gardermoen, the new Torp radar and Evje radar. Several other radar feeds are available from radars along the west coast of Norway, and central Norway. The operation consists of one regular office building above ground. The control center itself where the air traffic controllers work is located in a large subterranean mountain hall built to cold war specifications. The hall has several work stations that each can control one or more air traffic control sectors.

Åsåker Station (Norwegian: Åsåker holdeplass) was a railway station on the Spikkestad Linelocated at Åsåker in Asker, Norway. The station was opened as part of Drammenbanen on 22 December 1959, but in 1973 the new Lieråsen Tunnel opened through Lieråsen, and the old part of Drammen Line was transformed to a commuter train line. The station was served by the Oslo Commuter Rail service to Oslo S and onward to Moss. Åsåker is primarily a residential area. The station was closed in 2012 due to low traffic.

Heggedal Station (Norwegian: Heggedal stasjon) is a railway station located at Heggedal in Asker, Norway on the Spikkestad Line. Heggedal station is located around 99.2 meters above sea level and 29.34 km from Oslo Central Station.

Heggedal is a part of the Asker municipality in AKershus county, Norway. For statistical purposes, it's usually treated as part of the Oslo urban area. [1] In 2000, its population was 3,301 [2], and the election district named Heggedal had 2,329 registered voters in the 2005 election. It is mainly a residential area, though the area has a railway station, a church, a library, a middle school and a primary school.

Lieråsen Tunnel is a single-tubed railway tunnel of the Drammen Line situated in Asker and Lier in Norway. At a length of 10.723 kilometers (6.663 mi), the double track tunnel is located immediately between Asker Station and Lier Station. It is used for a mix of short- and long-haul passenger trains and freight trains. Construction of the tunnel commenced in 1962, along with a new section of track between the tunnel and Brakerøya Station. Inadequate geological surveys ahead of construction resulted in the tunnel being built in the middle of an altered and crushed zone, delaying construction and eventually shifting the route 300 meters (980 ft) to the southwest. The tunnel opened on 3 June 1973. In addition to providing double track, it shortened the Drammen Line by 12.4 kilometers (7.7 mi). Part of the old section of the Drammen Line became the Spikkestad Line, while the rest of line was closed. Lieråsen was the longest railway tunnel in the country until the Romerike Tunnel opened in 1999.