A Water balancea railway is a funicular, aerial tramway or cable railway that uses the weight of water to move its carriages.
The oldest water balance railway was probably the Prospect Park Incline Railway opened in 1845 at the Niagara Falls in the United States. It was later converted to electric operation and was shut down after an accident in 1908. [1]
The oldest railway in Europe is the Giessbachbahn, which opened in 1879 and was converted to electric operation in 1948. The Bom Jesus do Monte Funicular was opened in Braga (Portugal) in 1882, which is the oldest railway that is still operating as a water balance.[ citation needed ]
In Germany, the last operating water balance railway is the Nerobergbahn in Wiesbaden. In Switzerland there is only one train left, the Funicular Neuveville–Saint-Pierre in Freiburg.[ citation needed ]
The two carriages of the facility are connected by a rope or cable that runs over a pulley in the mountain station. The carriages maintain approximately balance, so propelling the wagon requires only applying the force to unbalance the system. This is done by artificially increasing the mass of the car standing in the mountain station with water, so that the gravity acting on this additional mass can move the train.
Both cars therefore have a ballast water tank. Between two rides, water is filled into the tank of the carriage in the mountain station, while the tank of the carriage in the valley station is emptied. The upper, heavier vehicle driving down the valley now pulls the lower, lighter one up the incline. The amount of water required depends on the weight difference between the two cars, which is assumed to be around 80 liters for each passenger. Because the length of the rope and thus the weight of the rope between the sheave and the wagon going down the valley increases steadily while the rope is moving uphill, the speed must be regulated while driving. This is done with brakes in the vehicles, which usually act on a rack in the track bed, and especially in longer systems also by draining water from the wagon going down the valley. Some lifts have a lower rope to compensate for the weight of the rope, which is also guided over a pulley in the valley station.
The water required for the operation of the railway was usually taken from a body of water near the mountain station. In places where water from the area was not available at the mountain station, this was pumped from the valley station with pumps through a pressure line running along the route into a reservoir at the mountain station.
The track system is usually single-track and has a passing point in the middle. Due to the special switch construction of the Abtschen Weiche , each car is automatically guided to one of the two sidings. The narrow route reduces the space required and the effort involved in building bridges and tunnels.
Although the water was cheap to come by (unless it had to be pumped up to the mountain station, which required energy to do so), there were disadvantages to operating with water ballast. Winter operation became dangerous as soon as there was a risk of the water tanks or the brake rack icing up. Likewise, the forced break that was necessary until the next trip due to refilling proved to be disadvantageous. In addition, the high operating weight and the high axle load of the wagons increased the maintenance effort for the entire system. Because of these limitations, only a few water-ballast-operated railways were built; and most have been converted to electric operation or have been discontinued.
(sorted by opening year)
Only a few examples are listed here, as many Railways were first operated with water ballast.
(complete list of all funiculars in public passenger transport [2] )
A funicular is a type of cable railway system that connects points along a railway track laid on a steep slope. The system is characterized by two counterbalanced carriages permanently attached to opposite ends of a haulage cable, which is looped over a pulley at the upper end of the track. The result of such a configuration is that the two carriages move synchronously: as one ascends, the other descends at an equal speed. This feature distinguishes funiculars from inclined elevators, which have a single car that is hauled uphill.
Cable transport is a broad class of transport modes that have cables. They transport passengers and goods, often in vehicles called cable cars. The cable may be driven or passive, and items may be moved by pulling, sliding, sailing, or by drives within the object being moved on cableways. The use of pulleys and balancing of loads moving up and down are common elements of cable transport. They are often used in mountainous areas where cable haulage can overcome large differences in elevation.
An aerial tramway, aerial tram, sky tram, aerial cablecar, aerial cableway, telepherique, or seilbahn is a type of aerial lift which uses one or two stationary ropes for support while a third moving rope provides propulsion. With this form of lift, the grip of an aerial tramway cabin is fixed onto the propulsion rope and cannot be decoupled from it during operations. In comparison to gondola lifts, aerial tramways generally provide lower line capacities and longer wait times.
The Harderbahn (HB) is one of two funiculars that operate from the town of Interlaken. The Harderbahn leads to the western end of the Harder in the north of Interlaken across the river Aare, in Switzerland.
The Lauterbrunnen–Mürren Mountain Railway is a hybrid transport system in the Bernese Oberland area of Switzerland, which connects the villages of Lauterbrunnen and Mürren. The system consists of a connected aerial cableway, also known as the Grütschalpbahn, and an adhesion worked mountain railway. The cableway replaced a funicular, on the same route, in 2010.
A cable railway is a railway that uses a cable, rope or chain to haul trains. It is a specific type of cable transportation.
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The Montmartre Funicular is an inclined transport system serving the Montmartre neighbourhood of Paris, France, in the 18th arrondissement. Operated by the RATP, the Paris transport authority, the system opened in 1900; it was entirely rebuilt in 1935 and again in 1991.
The Giessbach Funicular is a historic funicular in the Swiss canton of Bern and municipality of Brienz. It links a landing stage on Lake Brienz, served by shipping services on the lake, to the Grand Hotel Giessbach and Giessbach Falls above. The funicular is owned by the hotel, but since 1983 has been operated by a preservation foundation.
The Thunersee–Beatenberg Funicular is a funicular in the canton of Bern, Switzerland. It links a jetty, at Beatenbucht in the municipality of Sigriswil and on the shores of Lake Thun, to the village of Beatenberg, situated on the plateau above at 1,120 metres (3,675 ft) above sea level.
The Nerobergbahn is a funicular railway in Wiesbaden, Germany. The line links the city, with a station at the north of the Nerotalanlagen, with the Neroberg hill to its north, which offers a panorama view.
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The Turmbergbahn is a funicular railway in Karlsruhe in Germany. It is the oldest operating funicular in Germany. From Karlsruhe's former center Durlach, the line climbs the Turmberg, which on a clear day provides a lookout point with views of the Rhine Valley, the Palatinate forest and the adjacent parts of Alsace.
The Penang Hill Railway is a one-section funicular railway which climbs the Penang Hill from Air Itam, on the outskirts of the city of George Town in the Malaysian state of Penang. The railway first opened in 1923 as a two-section railway, but was overhauled in 2010 into a one-section system. It is a single-track railway with a passing loop, and it passes through a tunnel which is the steepest in the world. The total journey time can take between five and twenty minutes. The funicular train coach travels directly from the lower station to the top, but may stop at other intermediate stations upon request.
The Funiculaire de Cossonay is a funicular railway connecting the town of Cossonay in the Swiss canton of Vaud with Cossonay-Penthalaz railway station, on the line from Lausanne to Vallorbe and Yverdon-les-Bains. The lower funicular station is called Cossonay-Gare, but is in the village of Penthalaz. The upper station, some 130 metres (430 ft) above, is named Cossonay-Ville. The line has a length of 1228 m at a maximum incline of 13%.
The Rheineck–Walzenhausen mountain railway is a 1.9 kilometres (1.18 mi) long rack railway in Switzerland. It links Rheineck station, in the municipality of Rheineck and the canton of St Gallen, with the village and health resort of Walzenhausen, in the canton of Appenzell Ausserrhoden. Passenger service on the line now forms part of the St. Gallen S-Bahn, branded as the S26. The S26 is also part of the Bodensee S-Bahn.
There have been five cliff railways in the Isle of Man, none of which remain operational. Usually referred to as 'cliff lifts', they were all railways, having wheeled carriages running on weight-bearing rails. The two Falcon lifts served the same hotel at different periods ; the first Falcon lift was moved to become the Port Soderick lift, at the south end of the Douglas Southern Electric Tramway, with the Douglas Head lift at its north end. The Browside lift served the Laxey Wheel.