Hamburg Airport S-Bahn line
| Hamburg Airport S-Bahn | |||||||||||||||||||||||||||||||
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| Route number: | 101.1 | ||||||||||||||||||||||||||||||
| Line number: | 1239 | ||||||||||||||||||||||||||||||
| Line length: | 3 | ||||||||||||||||||||||||||||||
| Track gauge: | 1435 | ||||||||||||||||||||||||||||||
| Voltage: | 1.200 V DC | ||||||||||||||||||||||||||||||
| Maximum speed: | 80 | ||||||||||||||||||||||||||||||
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The Hamburg Airport S-Bahn line is a nearly three-kilometre long section of the Hamburg S-Bahn. It was opened on 11 December 2008.
The Airport S-Bahn line connects Hamburg-Fuhlsbüttel Airport via Ohlsdorf station with central Hamburg. The line, with the exception of a short section to the north of Ohlsdorf, is entirely underground. The tunnel ramp is located directly in front of Klein Borstel station on U-Bahn line U1. The tunnel is built at a depth of up to 30 metres below the surface due to geological conditions. It passes under the Alster river and the large residential area of Fuhlsbüttel.
The route is served by S-Bahn line S1. Trains coming from the city are partitioned at the Ohlsdorf station. The front part of the train runs to the airport and the back of the train continues on the original route of line S1 to Poppenbüttel. Similarly trains running into the city are coupled together at Ohlsdorf. The journey time from Hamburg Hauptbahnhof to the airport is 24 minutes and it is 25 minutes in the opposite direction. Trains between the city and the airport run at ten-minute intervals during the day and at 20 minute intervals in the early morning and the late evening. The track is operated and monitored from an electronic signal box in Ohlsdorf, which was opened in September 2008, just months before the opening of the airport line. The line is equipped with the modern Ks-signal system and GSM-R digital radio.
A railway to the airport has been discussed since the 1960s, including as a possible extension of the original route of U-Bahn line 4, on which work was abandoned in 1974. Further planning of a rail connection progressed slowly, partly because until the 1980s, there were plans for a new major airport at Kaltenkirchen, replacing the existing Hamburg airport. It was only after the plans for the new airport were dropped that a new rail link to the airport was re-examined, but little progress was made in the late 1980s due to lack of funding. However, in 1991 a shell for part of a station was built at the airport. In 1998 the Senate of Hamburg (government) decided to expand the airport, including a rail link. Progress was delayed by protests by local residents and work finally began on 11 April 2001. However, work was again delayed by water leaks during construction in 2004 and the line was finally opened to regular traffic on 12 December 2008. On the previous day free familiarisation trips operated to the airport station.
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