Jungfraubahn
| Jungfraubahn | |
|---|---|
 Kleine Scheidegg railway station | |
| Technical | |
| Line length | 9.3 km (5.8 mi) |
| Track gauge | 1,000 mm (3 ft 3⁄8 in) |
| Minimum radius | 100 m |
| Electrification | 3-phase, 1,125 V, 50 Hz |
| Highest elevation | 3,454 m (11,332 ft) |
| Maximum incline | 25 % |
| Rack system | Strub |
| JB Jungfraujoch | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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The Jungfraubahn (JB) is an 1,000 mm (3 ft 3⁄8 in) gauge rack railway electrified at 3-phase 1,125 volts 50 Hertz, which runs 9 kilometres from Kleine Scheidegg to the highest railway station in Europe at Jungfraujoch. The railway runs almost entirely within a tunnel built into the Eiger and Mönch mountains and contains two stations in the middle of the tunnel, where passengers can disembark to observe the neighbouring mountains through windows built into the mountainside.
The JB is under the management of the Jungfraubahn Holding company, which also comprises the Wengener Alp Bahn (WAB) which links to the JB at Kleine Scheidegg and has two routes down the mountain, to Lauterbrunnen and Grindelwald, from where the Berner Oberland Bahn (BOB) connects to the Federal Railways at Interlaken.
History
Stations
2008 Proposals
In early 2008, Jungfraubahn Holding AG announced it is exploring the futuristic idea of an efficient fast form of access to the Jungfraujoch as an addition to the rack railway. A feasibility study has been commissioned. The additional access would be the world's longest tunnel-lift system. The study is to show if and how such a tunnel-lift system - for example as a fast lift or funicular - from the Lauterbrunnen Valley to the Jungfraujoch could be realised without disturbing the unique landscape of the UNESCO World Heritage site.
The attractiveness of the cogwheel railway should thus be enhanced, as guests could use the fast lift for the uphill or downhill journey. Through a marked reduction in travelling time, the trip to the Jungfraujoch could also become a half-day excursion.
Rolling stock
Since most of the railway is inside a tunnel, it was designed to run with electricity from conception. The latest rolling stock consists of twin-unit motorcoaches carrying 230 per train which operate at 12.5 km/h on the steepest parts of the ascent. The motors function at two speeds which allows the units to operate at double this speed on the less steep part of the ascent (above Eismeer station).
The motors will operate in a regenerative mode which allows the trains to generate electricity during the descent which is fed back into the power distribution system. Approximately 50% of the energy required for an ascent is recovered during the descent. It is this generation that regulates the descent speed.
Snow clearing equipment is essential on the open section of line between Kleine Scheidegg railway station and Eigergletscher railway station. Originally snow ploughs were used but more recently snow blowing equipment has been brought into service.
The railway also operates some dedicated freight vehicles to supply the visitor facilities at Jungfraujoch, including a tank to transport additional water.
Main Characteristics
| Altitude of top station above Sea Level | 3454 m |
|---|---|
| Difference in height | 1393 m |
| Operational length | 9.3 km |
| Gauge | 1,000 mm (3 ft 3⁄8 in) |
| Rack rail type | Strub |
| Operational Speed | 12.5 km/h (25 km/h on shallower gradients such as above Eismeer) |
| Steepest gradient | 25% |
| Smallest curve radius | 100 m |
| Tunnels | 3: longest 7122 m, shortest 110 m. 80% of length of the entire railway. |
| Power system | 3-phase 50Hz 1125Volt |
Gallery
See also
References
External links
Retrieved from : http://en.wikipedia.org/wiki/Jungfraubahn
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