Polybahn

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Entrance to the lower station of the Polybahn
Car leaving the lower station across the viaduct over Seilergraben
The passing loop above the viaduct
Car just above the passing loop
Car approaching upper station
Entrance to the upper station

The Polybahn, also known as the UBS Polybahn, is a funicular railway in the centre of the city of Zurich, Switzerland. Previous names for the line include the SBG Polybahn and the Zürichbergbahn.[1][2][3]

The line operates out of Zurich Central-Hochschulen, and carries passengers up to the terrace by the main building of ETH Zurich, which was formerly called Eidgenössisches Polytechnikum, and from which the railway derives its name.

Contents

[edit] History

In 1886 a concession for the railway was issued, and the line was opened by the Zürichbergbahn company in 1889. The funicular was initially water-driven (filling water in a ballast tank under the carriage at the top station, emptying at the bottom); the railway was converted to electric drive in 1897.[4]

In 1950 the Zürichbergbahn company began losing money, and eventually (in the 1970s) decided not to renew the concession. In 1972 a foundation was created to help preserve the Polybahn. In 1976 the Union Bank of Switzerland, then known in German as the Schweizerische Bankgesellschaft or SBG, rescued the Polybahn, branding it as the SBG Polybahn. The line and cars were refurbished for a planned 20 more years service.[4]

In 1996 the railway was completely rebuilt. The haulage mechanism was replaced, and fully automated, whilst the old three-rail tracks were replaced with the current two-rail tracks. On 21 October 1996 the railway reopened and is now advertised under the name UBS Polybahn, reflecting the rebranding (in 1998) of the owning banking group as UBS AG. In 1998 the line set a new record, carrying more than 2 million passengers.[4]

[edit] Operation

The line has the following parameters:[1]

Number of cars 2
Number of stops 2
Configuration Single track with passing loop
Mode of operation Automated
Drive Three-phase AC motor with frequency changer
Track length 176 metres (577 ft)
Rise 41 metres (135 ft)
Average gradient 23%
Track gauge Meter gauge
Capacity 50 persons per car
Maximum speed 2.5 metres per second (8.2 ft/s)
Capacity per direction 1200 Persons/hour
Travel time 100 seconds
Frequency Every 2.5 minutes

The standard Zürcher Verkehrsverbund zonal fare tariffs apply, with the whole of the line being within fare zone 10 (Zurich city).[5]

[edit] References

[edit] External links

Media related to Polybahn at Wikimedia Commons



Coordinates: 47°22′35″N 8°32′38″E / 47.37639°N 8.54389°E / 47.37639; 8.54389

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