A cable car (usually known as a cable tram outside North America) is a type of cable railway used for mass transit in which rail cars are hauled by a continuously moving cable running at a constant speed. Individual cars stop and start by releasing and gripping this cable as required. Cable cars are distinct from funiculars , where the cars are permanently attached to the cable.
41-684: The Minneapolis–St. Paul Airport Trams consist of a pair of cable-drawn automated people movers that serve travelers of the Minneapolis–Saint Paul International Airport . Both were constructed by the Poma - Otis Transit Company of Farmington , Connecticut and are operated under the direction of the Metropolitan Airports Commission. The older of the two systems, the Hub Tram , opened on April 3, 2001. Covering
82-472: A grip on the cars was the Fawdon Wagonway in 1826, a colliery railway line . The London and Blackwall Railway , which opened for passengers in east London , England, in 1840 used such a system. The rope available at the time proved too susceptible to wear and the system was abandoned in favour of steam locomotives after eight years. In America, the first cable car installation in operation probably
123-595: A turntable in the road turned cars through 90° and sent them south-west into their shed. The route was eventually turned into a four-lane highway, cutting Littlebourne Crescent off from Littlebourne Road, going under a new bridge and undergoing considerable widening on the Kaikorai side, restricting access to Ann Street and Oates Street. It closed on 31 July 1947. Opening on 23 March 1883, the Mornington line travelled one mile (1.6 km) up High Street to Mornington. This line
164-482: A car would leave the terminal every 15 seconds. A few funicular railways operate in street traffic, and because of this operation are often incorrectly described as cable cars. Examples of such operation, and the consequent confusion, are: Even more confusingly, a hybrid cable car/funicular line once existed in the form of the original Wellington Cable Car , in the New Zealand city of Wellington . This line had both
205-492: A continuous loop haulage cable that the cars gripped using a cable car gripper, and a balance cable permanently attached to both cars over an undriven pulley at the top of the line. The descending car gripped the haulage cable and was pulled downhill, in turn pulling the ascending car (which remained ungripped) uphill by the balance cable. This line was rebuilt in 1979 and is now a standard funicular, although it retains its old cable car name. The best-known existing cable car system
246-542: A curve, since Dunedin's curves were too steep to allow coasting, while the latter forced a wedge down into the cable slot to stop the tram, which was deemed necessary after the line had a runaway tram some two months after it opened. The last line closed on 2 March 1957. Dunedin's first cable car served Roslyn (although initially only going as far as the Town Belt ), covering a distance of 1.4 miles (2.3 km), opening on 6 February 1881. The line went up Rattray Street, with
287-703: A distance of 1,100 feet (340 m), the Hub Tram is designed to quickly transport passengers between the Lindbergh Terminal and the Hub Building where travelers can find rental car service counters , a transit center and the Airport-Lindbergh Terminal light rail station , from which passengers can transfer to the Humphrey Terminal at no extra charge. Costing $ 25 million to complete, the Hub Tram
328-672: A fire. Later, the line was operated by the former Elgin Road grip tram, DCCT No 106. When this car was being overhauled, it would be replaced by 'convertible' grip tram No 105, which was used as a spare car on the Mornington and Maryhill lines as its grip could be set at two different heights to allow it to run on either line. Grip tram 106 was withdrawn in 1955 and donated to the Otago Early Settlers Museum where it remains on static display. 'Convertible' grip tram 105 remained in service on
369-510: A period, economics worked in favour of cable cars even in relatively flat cities. For example, the Chicago City Railway , also designed by Eppelsheimer, opened in Chicago in 1882 and went on to become the largest and most profitable cable car system . As with many cities, the problem in flat Chicago was not one of incline, but of transportation capacity. This caused a different approach to
410-458: A system in that its cars are not permanently attached to the cable and can stop independently, whereas a funicular has cars that are permanently attached to the propulsion cable, which is itself stopped and started. A cable car cannot climb as steep a grade as a funicular, but many more cars can be operated with a single cable, making it more flexible, and allowing a higher capacity. During the rush hour on San Francisco's Market Street Railway in 1883,
451-479: Is due to the economy of centrally located power stations, and the ability of descending cars to transfer energy to ascending cars. However, this advantage is totally negated by the relatively large energy consumption required to simply move the cable over and under the numerous guide rollers and around the many sheaves . Approximately 95% of the tractive effort in the San Francisco system is expended in simply moving
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#1732898929093492-573: Is often known as the Hallidie Cable Car . In 1881 the Dunedin cable tramway system opened in Dunedin , New Zealand and became the first such system outside San Francisco. For Dunedin, George Smith Duncan further developed the Hallidie model, introducing the pull curve and the slot brake; the former was a way to pull cars through a curve, since Dunedin's curves were too sharp to allow coasting, while
533-416: Is relatively constant depending on the number of units gripping the cable at any given time. The cable car begins moving when a clamping device attached to the car, called a grip , applies pressure to ("grip") the moving cable. Conversely, the car is stopped by releasing pressure on the cable (with or without completely detaching) and applying the brakes. This gripping and releasing action may be manual, as
574-750: Is the San Francisco cable car system in the city of San Francisco, California . San Francisco's cable cars constitute the oldest and largest such system in permanent operation, and it is one of the few still functioning in the traditional manner, with manually operated cars running in street traffic. Other examples of cable powered systems can be found on the Great Orme in North Wales, and in Lisbon in Portugal. All of these however are slightly different to San Francisco in that
615-577: The Stuart Street line opened on 6 October 1900, running largely parallel to the Roslyn line. The track went up Stuart Street from The Octagon , turned half-right at York Place into what was then called Albert Street, continued on past the end of that street through a short section of Town Belt, past Otago Boys' High School , across the bottom of Littlebourne Crescent and up to Highgate at School Street, then dropped down to Kaikorai just before Nairn Street, where
656-530: The Mornington Health Centre after the Plumbers moved out) is still clearly marked in the shopping area, having had little external changes since the line closed. In 2013, a local group announced plans to reinstate this line. The project, estimated to cost $ 22m, would include a terminus near Mornington Park containing a cafe, museum and storage area for the cable car. The Maryhill Extension exited from
697-701: The Mornington line until the closure of the Mornington line in 1957 when it was donated in working order to the Seashore Trolley Museum in Kennebunkport, Maine , where it is stored in a complete state along with its grip. The Elgin Road Extension also left the Mornington cable car house, going up Mailer Street and then following Elgin Road for a total of 0.9 miles (1.4 km). It opened on 6 October 1906, and closed only four years later, on 22 January 1910. In contrast to Dunedin's other cable car lines, there
738-413: The appearance of the vehicles is similar to the Hub Tram, they use steel wheels on steel tracks as the 'C' Concourse line is above ground and open to the elements , where ice and snow could interfere with the operation of the air cushions had it been built with Hovair technology. Cable car (railway) The first cable-operated railway, employing a moving rope that could be picked up or released by
779-452: The back of the Mornington cable car house at the end of Henderson St, following Glenpark Avenue for 0.5 miles (0.8 km). The line was perfectly straight, and was sometimes referred to as The Big Dipper , similar to a roller coaster, going steeply down one side of the valley and then up the other side. It opened on 18 March 1885 and closed on 29 October 1955. The line was originally operated using two grip trams which were later destroyed by
820-535: The cable, the Minimetro system from Poma /Leitner Group and the Cable Liner system from DCC Doppelmayr Cable Car both have variants that allow the cars to be automatically decoupled from the cable under computer control, and can thus be considered a modern interpretation of the cable car. The cable is itself powered by a stationary engine or motor situated in a cable house or power house. The speed at which it moves
861-402: The cable. Because of the constant and relatively low speed, a cable car's potential to cause harm in an accident can be underestimated. Even with a cable car traveling at only 14 km/h (9 mph), the mass of the cable car and the combined strength and speed of the cable can cause extensive damage in a collision. A cable car is superficially similar to a funicular , but differs from such
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#1732898929093902-415: The car. As many early cable car operators discovered the hard way, if the grip is not applied properly, it can damage the cable, or even worse, become entangled in the cable. In the latter case, the cable car may not be able to stop and can wreak havoc along its route until the cable house realizes the mishap and halts the cable. One apparent advantage of the cable car is its relative energy efficiency. This
943-494: The cars are permanently attached to the cable. Several cities operate a modern version of the cable car system. These systems are fully automated and run on their own reserved right of way. They are commonly referred to as people movers , although that term is also applied to systems with other forms of propulsion, including funicular style cable propulsion. These cities include: Information Patents Dunedin cable tramway system The Dunedin cable tramway system
984-501: The cars into and out of the terminals. After 1896 the system was changed to one on which a motor car was added to each train to maneuver at the terminals, while en route, the trains were still propelled by the cable. On 25 September 1883, a test of a cable car system was held by Liverpool Tramways Company in Kirkdale , Liverpool . This would have been the first cable car system in Europe, but
1025-449: The cheaper to construct and simpler to operate electrically -powered trolley or tram started to become the norm, and eventually started to replace existing cable car systems. For a while hybrid cable/electric systems operated, for example in Chicago where electric cars had to be pulled by grip cars through the loop area, due to the lack of trolley wires there. Eventually, San Francisco became
1066-483: The combination of grip car and trailer. Rather than using a grip car and single trailer, as many cities did, or combining the grip and trailer into a single car, like San Francisco's California Cars , Chicago used grip cars to pull trains of up to three trailers. In 1883 the New York and Brooklyn Bridge Railway was opened, which had a most curious feature: though it was a cable car system, it used steam locomotives to get
1107-413: The company decided against implementing it. Instead, the distinction went to the 1884 Highgate Hill Cable Tramway , a route from Archway to Highgate , north London, which used a continuous cable and grip system on the 1 in 11 (9%) climb of Highgate Hill. The installation was not reliable and was replaced by electric traction in 1909. Other cable car systems were implemented in Europe, though, among which
1148-474: The cutting was too steep for a road link, so, when the cable cars ceased, the portion near Belgrave Crescent was redeveloped as a short street serving several houses while retaining the pedestrian walkway through to Delta Street. Trolleybuses replaced the service as far as Belgrave Crescent, using City Road instead of the straight steep cutting through the Town Belt. Travelling a distance of 1.2 miles (1.9 km),
1189-417: The four cables at 15.3 km/h (9.5 mph). Electric cars with regenerative braking do offer the advantages, without the problem of moving a cable. In the case of steep grades, however, cable traction has the major advantage of not depending on adhesion between wheels and rails . There is also the advantage that keeping the car gripped to the cable will also limit the downhill speed of the car to that of
1230-529: The latter forced a wedge down into the cable slot to stop the car. Both of these innovations were generally adopted by other cities, including San Francisco. In Australia, the Melbourne cable tramway system operated from 1885 to 1940. It was one of the most extensive in the world with 1200 trams and trailers operating over 15 routes with 103 km (64 miles) of track. Sydney also had a couple of cable tram routes. Cable cars rapidly spread to other cities, although
1271-422: The major attraction for most was the ability to displace horsecar (or mule -drawn) systems rather than the ability to climb hills. Many people at the time viewed horse-drawn transit as unnecessarily cruel, and the fact that a typical horse could work only four or five hours per day necessitated the maintenance of large stables of draft animals that had to be fed, housed, groomed, medicated and rested. Thus, for
Minneapolis–St. Paul Airport Trams - Misplaced Pages Continue
1312-489: The only street-running manually operated system to survive – Dunedin, the second city with such cars, was also the second-last city to operate them, closing down in 1957. In the last decades of the 20th-century, cable traction in general has seen a limited revival as automatic people movers , used in resort areas, airports (for example, Toronto Airport ), huge hospital centers and some urban settings. While many of these systems involve cars permanently attached to
1353-551: The two systems, the ' C' Concourse People Mover , opened on May 5, 2004. Covering a distance of 2,700 feet (820 m), this tram is designed to quickly transport passengers between the concourses of the Lindbergh Terminal. Costing $ 36 million to complete, the 'C' Concourse tram was originally scheduled to open on June 1, 2002, but computer software problems and a collision with the vehicles resulted in postponing its opening to 2004. The four cars used in this system have an average top speed of 26 miles per hour (42 km/h) and, although
1394-539: The world's first pull curve in front of St Joseph's Cathedral. It then cut through the Town Belt in Belleknowes (where the cutting is still generally visible) past the Beverly-Begg Observatory to climb the full length of Ross Street and part of Belgrave Crescent, then descend through a cutting to the valley near Frasers Road. The last cable car ran on this line on 25 October 1951. The western section beyond
1435-410: Was a group of cable tramway lines in the New Zealand city of Dunedin . It is significant as Dunedin was the second city in the world to adopt the cable car (the first being San Francisco ). The first Dunedin cable car line opened in 1881, the engineer responsible being George Smith Duncan . For this system he introduced the pull curve and the slot brake; the former was a way to pull cars through
1476-509: Was issued U.S. patent 97,343 . Other cable cars to use grips were those of the Clay Street Hill Railroad , which later became part of the San Francisco cable car system . The building of this line was promoted by Andrew Smith Hallidie with design work by William Eppelsheimer , and it was first tested in 1873. The success of these grips ensured that this line became the model for other cable car transit systems, and this model
1517-524: Was originally scheduled to open in Fall 2000, but a computer glitch resulted in postponing its opening. Trams on this system, which is fully underground, operate on a cushion of air and there are no physical guide rails . The technology is identical to that of the ExpressTram at Detroit Metropolitan Wayne County Airport and the people mover at Cincinnati Northern Kentucky International Airport . The newer of
1558-741: Was the Glasgow District Subway , the first underground cable car system, in 1896. ( London , England's first deep-level tube railway, the City & South London Railway , had earlier also been built for cable haulage but had been converted to electric traction before opening in 1890.) A few more cable car systems were built in the United Kingdom , Portugal , and France . European cities, having many more curves in their streets, were ultimately less suitable for cable cars than American cities. Though some new cable car systems were still being built, by 1890
1599-522: Was the West Side and Yonkers Patent Railway in New York City , as its first-ever elevated railway which ran from 1 July 1868 to 1870. The cable technology used in this elevated railway involved collar-equipped cables and claw-equipped cars, proving cumbersome. The line was closed and rebuilt, reopening with steam locomotives . In 1869 P. G. T. Beauregard demonstrated a cable car at New Orleans and
1640-420: Was the case in all early cable car systems, or automatic, as is the case in some recent cable operated people mover type systems. Gripping must be applied evenly and gradually in order to avoid bringing the car to cable speed too quickly and unacceptably jarring passengers. In the case of manual systems, the grip resembles a very large pair of pliers , and considerable strength and skill are required to operate
1681-518: Was the steepest recorded tramline in the world, with a gradient at the highest point of the track measured at 1 in 3.75. The Mornington line was the last to close, on 2 March 1957, leaving San Francisco as the only operational cable car system in the world. Wellington Cable Car , also in New Zealand but in the North Island, is a funicular rather than a true cable car. Cable Car House (now used by