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A tram (also tramcar; and in North America streetcar, trolley or trolley car) is a rail vehicle which runs on tracks along public urban streets, and also sometimes on a segregated right of way. The lines or networks operated by tramcars are called tramways. Tramways powered by electricity, the most common type historically, were once called electric street railways (mainly in the USA). However, trams were widely used in urban areas before the universal adoption of electrification; other methods of powering trams are listed below under "History".
Tram lines may also run between cities and/or towns (for example, interurbans, tram-train), and/or partially grade-separated even in the cities (light rail). Very occasionally, trams also carry freight. Tram vehicles are usually lighter and shorter than conventional trains and rapid transit trains, but the size of trams (particularly light rail vehicles) is rapidly increasing. Some trams (for instance tram-trains) may also run on ordinary railway tracks, a tramway may be upgraded to a light rail or a rapid transit line, two urban tramways may be connected to an interurban, etc. For all these reasons, the differences between the various modes of rail transportation are often indistinct. In the United States, the term tram has sometimes been used for rubber-tired trackless trains, which are not related to the other vehicles covered in this article.
Today, most trams use electrical power, usually fed by an overhead pantograph; in some cases by a sliding shoe on a third rail, trolley pole or bow collector. If necessary, they may have dual power systems — electricity in city streets, and diesel in more rural environments. Trams are now included in the wider term "light rail",[full citation needed] which also includes segregated systems.
The English terms tram and tramway are derived from the Scots word tram,[publisher missing] referring respectively to a type of truck (goods wagon or freight railroad car) used in coal mines and the tracks on which they ran. The word tram probably derived from Middle Flemish trame ("beam, handle of a barrow, bar, rung"), a Romanesque word meaning the beam or shaft of a barrow or sledge, also the barrow itself. The identical word la trame with the meaning "crossbeam" is also used in the French language. Etymologists believe that the word tram refers to the wooden beams the railway tracks were initially made of before the railroad pioneers switched to the much more wear-resistant tracks made of iron and, later, steel. The word Tram-car is attested from 1873.
Although the terms tram and tramway have been adopted by many languages, they are not used universally in English; North Americans prefer streetcar, trolley, or trolleycar. The term streetcar is first recorded in 1840, and originally referred to horsecars. When electrification came, Americans began to speak of trolleycars or later, trolleys. A widely held belief holds the word to derive from the troller (said to derive from the words traveler and roller), a four-wheeled device that was dragged along dual overhead wires by a cable that connected the troller to the top of the car and collected electrical power from the overhead wires; this portmanteau derivation is, however, most likely folk etymology. "Trolley" and variants refer to the verb troll, meaning 'roll' and probably derived from Old French, and cognate uses of the word were well established for handcarts and horse drayage, as well as for nautical uses.
The troller design frequently fell off the wires, and was soon replaced by other more reliable devices, the trolley pole and notably the bow collector. Both were fitted to the top of the car and were spring-loaded in order to keep, respectively, a small trolley wheel or grooved lubricated "skate" mounted at the top of the pole or a steel rod forming the top of the bow firmly in contact with the underside of the overhead wire. The terms trolley pole and trolley wheel both derive from the troller. Trams using trolley-pole current collection are normally powered through a single pole, with return current earthed through the steel wheels and rails, though some systems (e.g. parts of the London system), used twin overhead wires and poles to avoid the effects of stray currents flowing through the earth. Modern trams often have an overhead pantograph mechanical linkage to connect to power, abandoning the trolley pole altogether.
The alternative North American term trolley may strictly speaking be considered incorrect, as the term can also be applied to cable cars, or conduit cars that instead draw power from an underground supply. Conventional diesel tourist buses decorated to look like streetcars are sometimes called trolleys in the US (tourist trolley). Furthering confusion, the term tram has instead been applied to open-sided, low-speed segmented vehicles on rubber tires generally used to ferry tourists short distances, for example on the Universal Studios backlot tour and, in many countries, as tourist transport to major destinations. The term may also apply to an aerial ropeway, e.g. the Roosevelt Island Tramway.
Over time, the term trolley has fallen into informal use, and may be applied loosely to a wide variety of different vehicle types. The word has taken on a historic or picturesque connotation, and is often associated with tourist or leisure travel. In North America, professional or formal documents generally use more precise alternative terms, such as streetcar or light rail vehicle (LRV).
Although the use of the term trolley for tram was not adopted in Europe, the term was later associated with the trolleybus, a rubber-tyred vehicle running on hard pavement, which draws its power from pairs of overhead wires. These electric buses, which use twin trolley poles, are also called trackless trolleys (particularly in the northeastern US), or sometimes simply trolleys (in the UK, as well as in Seattle and Vancouver).
The very first tram was on the Swansea and Mumbles Railway in south Wales, UK; it was horse-drawn at first, and later moved by steam and electric power. The Mumbles Railway Act was passed by the British Parliament in 1804, and the first tram (similar to streetcars in the US some 30 years later) started operating in 1807.
The first streetcars, also known as horsecars in North America, were built in the United States and developed from city stagecoach lines and omnibus lines that picked up and dropped off passengers on a regular route without the need to be pre-hired. These trams were an animal railway, usually using teams of horses and sometimes mules to haul the cars, usually two as a team. Occasionally other animals were put to use, or humans in emergencies. The first streetcar line, developed by Irish born John Stephenson, was the New York and Harlem Railroad's Fourth Avenue Line which ran along The Bowery and Fourth Avenue in New York City. Service began in 1832. It was followed in 1835 by New Orleans, Louisiana, which has the oldest continuously operating street railway system in the world, according to the American Society of Mechanical Engineers.
In other world regions, the first tramway systems (all horse-drawn) were:
In many cases, these early forms of public transport developed out of industrial haulage routes or from the omnibus that first ran on public streets, using the newly invented iron or steel rail or 'tramway'. These were local versions of the stagecoach lines and picked up and dropped off passengers on a regular route, without the need to be pre-hired. Horsecars on tramlines were an improvement over the omnibus as the low rolling resistance of metal wheels on iron or steel rails (usually grooved from 1852 on), allowed the animals to haul a greater load for a given effort than the omnibus and gave a smoother ride. The horse-drawn streetcar combined the low cost, flexibility, and safety of animal power with the efficiency, smoothness, and all-weather capability of a railway.
In Australia, there were horse-drawn lines or systems in: Adelaide, S.A.; Ballarat, Victoria; Brisbane, Queensland; Gawler, S.A.; Perth, W.A.; Sydney, N.S.W.; Victor Harbor, S.A. - the latter reconstructed and operating as a tourist/heritage line.
The first mechanical trams were powered by steam. Generally, there were two types of steam tram. The first and most common had a small steam locomotive (called a tram engine in the UK) at the head of a line of one or more carriages, similar to a small train. Systems with such steam trams included Christchurch, New Zealand; Sydney, Australia; other city systems in New South Wales; Munich, Germany (from August 1883 on), British India (Pakistan) (from 1885) and the Dublin & Blessington Steam Tramway in Ireland. Steam tramways also were used on the suburban tramway lines around Milan and Padua; the last Gamba de Legn ("Peg-Leg") tramway ran on the Milan-Magenta-Castano Primo route in late 1958.
Tram engines usually had modifications to make them suitable for street running in residential areas. The wheels, and other moving parts of the machinery, were usually enclosed for safety reasons and to make the engines quieter. Measures were often taken to prevent the engines from emitting visible smoke or steam. Usually the engines used coke rather than coal as fuel to avoid emitting smoke; condensers or superheating were used to avoid emitting visible steam.
The other style of steam tram had the steam engine in the body of the tram, referred to as a tram engine or steam dummy. The most notable system to adopt such trams was in Paris. French-designed steam trams also operated in Rockhampton, in the Australian state of Queensland between 1909 and 1939. Stockholm, Sweden, had a steam tram line at the island of Södermalm between 1887 and 1901.
A major drawback of this style of tram was the limited space for the engine, so that these trams were usually underpowered.
The next motive system for trams was the cable car, which was pulled along a fixed track by a moving steel cable. The power to move the cable was normally provided at a "powerhouse" site a distance away from the actual vehicle.
The first practical cable car line was tested in San Francisco, in 1873. Part of its success is attributed to the development of an effective and reliable cable grip mechanism, to grab and release the moving cable without damage. The second city to operate cable trams was Dunedin in New Zealand, from 1881 to 1957. From 1885 to 1940, the city of Melbourne, Victoria, Australia operated one of the largest cable systems in the world, at its peak running 592 trams on 75 kilometres (47 mi) of track. There were also two isolated cable lines in Sydney, New South Wales, Australia; the North Sydney line from 1886 to 1900, and the King Street line from 1892 to 1905.
New York City developed at least seven cable car lines.[when?] A line in Washington DC ran to Georgetown (where some of the underground cable vaults can still be seen today). Los Angeles also had several cable car lines, including the Second Street Cable Railroad, which operated from 1885 to 1889, and the Temple Street Cable Railway, which operated from 1886 to 1898. The most extensive cable system in the US was in Chicago between 1882 and 1906.[when?]
In Dresden, Germany, in 1901 an elevated suspended cable car following the Eugen Langen one-railed floating tram system started operating. Cable cars operated on Highgate Hill in North London and Kennington to Brixton Hill In South London.[when?] They also worked around "Upper Douglas" in the Isle of Man from 1897 to 1929 (cable car 72/73 is the sole survivor of the fleet).
Cable cars suffered from high infrastructure costs, since an expensive system of cables, pulleys, stationary engines and lengthy underground vault structures beneath the rails had to be provided. They also required physical strength and skill to operate, and alert operators to avoid obstructions and other cable cars. The cable had to be disconnected ("dropped") at designated locations to allow the cars to coast by inertia, for example when crossing another cable line. The cable would then have to be "picked up" to resume progress, the whole operation requiring precise timing to avoid damage to the cable and the grip mechanism.
Breaks and frays in the cable, which occurred frequently, required the complete cessation of services over a cable route while the cable was repaired. Due to overall wear, the entire length of cable (typically several kilometres) would have to be replaced on a regular schedule. After the development of reliable electrically powered trams, the costly high-maintenance cable car systems were rapidly replaced in most locations.
Cable cars remained especially effective in hilly cities, since their nondriven wheels would not lose traction as they climbed or descended a steep hill. The moving cable would physically pull the car up the hill at a steady pace, unlike a low-powered steam or horse-drawn car. Cable cars do have wheel brakes and track brakes, but the cable also helps restrain the car to going downhill at a constant speed. Performance in steep terrain partially explains the survival of cable cars in San Francisco. However, the extensive cable car system of Chicago operated over a large relatively flat area.
The San Francisco cable cars, though significantly reduced in number, continue to perform a regular transportation function, in addition to being a well-known tourist attraction. A single cable line also survives in Wellington, New Zealand (rebuilt in 1979 as a funicular but still called the "Wellington Cable Car"). A third system, actually two separate cable lines with a shared power station in the middle, operates from the Welsh town of Llandudno up to the top of the Great Orme hill in North Wales, UK.
The Opicina Tramway in Trieste operates a hybrid funicular electric system. Conventional electric trams are operated in street running and on reserved track for most of their route. However, on one steep segment of track, they are assisted by cable tractors, which push the trams uphill and act as brakes for the downhill run. For safety, the cable tractors are always deployed on the downhill side of the tram vehicle. Similar systems were used elsewhere in the past, notably on the Queen Anne Counterbalance in Seattle and the Darling Street Wharf line in Sydney.
Electric trams were first experimentally installed in Saint Petersburg, Russia, invented and tested by Fyodor Pirotsky as early as 1880. These trams, like virtually all others mentioned in this section, used either a trolley pole or a pantograph, to feed power from electric wires strung above the tram route. Nevertheless, there were early experiments with battery-powered trams but these appear to have all been unsuccessful. The first trams in Bendigo, Australia, in 1892, were battery-powered but within as little as three months they were replaced with horse-drawn trams. In New York City some minor lines also used storage batteries. Then, comparatively recently, during the 1950s, a longer battery-operated tramway line ran from Milan to Bergamo. In China there is a Nanjing battery Tram line and has been running since 2014.
The first regular electric tram service using pantographs or trolley poles, the Gross-Lichterfelde Tramway, was put into service in Lichterfelde, then a suburb of Berlin, (now part of the southwestern Berlin city district of Steglitz-Zehlendorf), by Siemens & Halske AG (company founder Werner von Siemens), in May 1881. It initially drew current from the rails, with overhead wire being installed in 1883. The company Siemens still exists.
Another was by John Joseph Wright, brother of the famous mining entrepreneur Whitaker Wright, in Toronto in 1883. Earlier installations proved difficult or unreliable. Siemens' line, for example, provided power through a live rail and a return rail, like a model train, limiting the voltage that could be used, and providing electric shocks to people and animals crossing the tracks. Siemens later designed his own method of current collection, from an overhead wire, called the bow collector.
In 1883, Magnus Volk constructed his 2 feet (610 mm) gauge Volk's Electric Railway along the eastern seafront at Brighton, England. This two kilometer line, re-gauged to 2 feet 9 inches (840 mm) in 1884, remains in service to this day, and is the oldest operating electric tramway in the world. The first tram for permanent service with overhead lines was the Mödling and Hinterbrühl Tram in Austria. It began operating in October 1883, but was closed in 1932.
Multiple functioning experimental electric trams were exhibited at the 1884 World Cotton Centennial World's Fair in New Orleans, Louisiana, but they were not deemed good enough to replace the Lamm fireless engines that then propelled the St. Charles Avenue Streetcar in that city.
Sidney Howe Short designed and produced the first electric motor that operated a streetcar without gears. The motor had its armature direct-connected to the streetcar's axle for the driving force. Short pioneered "use of a conduit system of concealed feed" thereby eliminating the necessity of overhead wire, trolley poles and a trolley for street cars and railways. While at the University of Denver he conducted important experiments which established that multiple unit powered cars were a better way to operate trains and trolleys.
In the United States, electric trams were first tested in service in Richmond, Virginia, in 1888, in the Richmond Union Passenger Railway built by Frank J. Sprague, though the first commercial installation of an electric streetcar in the United States was built in 1884 in Cleveland, Ohio and operated for a period of one year by the East Cleveland Street Railway Company.
The first electric street tramway in Britain, the Blackpool Tramway, was opened on 29 September 1885 using conduit collection along Blackpool Promenade. Since the closure of the Glasgow Corporation Tramways in 1962, this has been the only first-generation operational tramway in the UK, and is still in operation in a modernised form.
Sarajevo built a citywide system of electric trams in 1885. Budapest established its tramway system in 1887, and its ring line has grown to be the busiest tram line in Europe, with a tram running every 60 seconds at rush hour (however Istanbul's line T1, with a minimum headway of two minutes, probably carries more passengers – 265,000 per day). Bucharest and Belgrade ran a regular service from 1894. Ljubljana introduced its tram system in 1901 – it closed in 1958.
In Australia there were electric systems in Sydney, Newcastle, Geelong, Ballarat, Bendigo, Brisbane, Adelaide, Perth, Fremantle, Kalgoorlie, Leonora, Hobart and Launceston. By the 1970s, the only tramway system remaining in Australia was the extensive Melbourne system other than a few single lines remaining elsewhere: the Glenelg Tram, connecting Adelaide to the beachside suburb of Glenelg, and tourist trams in the Victorian Goldfields cities of Bendigo and Ballarat. An unusual line that operated from 1889 to 1896 connected Box Hill, then an outer suburb of Melbourne, to Doncaster, then a favoured picnic spot. In recent years the Melbourne system, generally recognised as one of the largest in the world, has been considerably moderrnised and expanded. The Adelaide line has also been extended to the Entertainment Centre, and there are plans to expand further.
In 1904 trams were put into operation in Hong Kong. The Hong Kong Tramway is still in operation today and uses double-decker trams exclusively.
In the late 19th and early 20th centuries a number of systems in various parts of the world employed trams powered by gas, naphtha gas or coal gas in particular. Gas trams are known to have operated between Alphington and Clifton Hill in the northern suburbs of Melbourne, Australia (1886–1888); in Berlin and Dresden, Germany; in Estonia (1920s–1930); between Jelenia Góra, Cieplice, and Sobieszów in Poland (from 1897); and in the UK at Lytham St Annes, Neath (1896–1920), and Trafford Park, Manchester (1897–1908).
On 29 December 1886 the Melbourne newspaper The Argus reprinted a report from the San Francisco Bulletin that Mr Noble had demonstrated a new 'motor car' for tramways 'with success'. The tramcar 'exactly similar in size, shape, and capacity to a cable grip car' had the 'motive power' of gas 'with which the reservoir is to be charged once a day at power stations by means of a rubber hose'. The car also carried an electricity generator for 'lighting up the tram and also for driving the engine on steep grades and effecting a start'.
Comparatively little has been published about gas trams. However, research on the subject was carried out for an article in the October 2011 edition of "The Times", the historical journal of the Australian Association of Timetable Collectors, now the Australian Timetable Association.
A tram system powered by compressed natural gas was due to open in Malaysia in 2012, but as of 2016[update] there was no evidence of anything having happened; news about the project appears to have dried up.
In some places, other forms of power were used to power the tram. Hastings and some other tramways, for example Stockholms Spårvägar in Sweden and some lines in Karachi, used petrol trams. Paris operated trams that were powered by compressed air using the Mekarski system.
Although Portland, Victoria promotes its tourist tram as being a cable car it actually operates using a hidden diesel motor. The tram, which runs on a circular route around the town of Portland, uses 'dummies' (grip-cars) and saloon trailer cars formerly used on the extensive Melbourne cable tramway system and now beautifully restored.
In March 2015, China South Rail Corporation (CSR) demonstrated the world's first hydrogen fuel cell vehicle tramcar at an assembly facility in Qingdao. The chief engineer of the CSR subsidiary CSR Sifang Co Ltd., Liang Jianying, said that the company is studying how to reduce the running costs of the tram.
A double-ended tram has an operator's cab and controls at each end of the vehicle, which allows it to easily be driven at full speed in either direction on a continuous segment of track. Typically at the end of a run, the tram's operator will walk from one end of the tram to the other, and then commence the tram route in the other direction. The tram is usually switched to another track by use of crossover points or Y-points. Conversely, a single-ended vehicle needs a method of turning at termini so that the operator's cab is in the front of the tram for the reverse journey. This usually necessitates a turning loop or triangle. On the other hand, the single cab and controls and fewer door spaces make the tram lighter, increases passenger accommodation (including many more seats) and effects reductions in equipment, weight, first-cost, maintenance cost, and operating expense.
A single-ended tram has operator's controls at only one end, and can safely be driven at speed in the forward direction but is also capable of reverse movement, typically at slower speed, using a small set of controls at the rear. The configuration of the doors is usually asymmetrical, favouring the side expected to be closest to the street kerb and footpath. At the end of a run, the tram must be turned around via a balloon loop or some other method, to face in the opposite direction for a return trip.
Two single-ended trams with doors on both sides may be coupled into a (semi-)permanently coupled married pair or twinset, with operator's controls at each end of the combination. Such a setup is operated as if it were a double-ended tram, except that the operator must exit one vehicle and enter the other, when reversing at the end of the run.
In addition, if overhead electrical power is fed from a trolley pole, the direction of the trolley pole must be reversed at the end of the run, to ensure that the pole is "pulled" behind or "trailing" the vehicle, to avoid 'dewiring'. This was achieved by a member of the crew swinging the pole through 180 degrees (if there was only one pole) or lowering one pole and raising the other if there were two. More commonly nowadays, a bidirectional pantograph may be used to feed power, eliminating the need for an extra procedure when reversing direction.
From around the 1990s, light rail vehicles not made for the occasional high platform light rail system have usually been of partial or fully low-floor design, with the floor 300 to 360 mm (11.8 to 14.2 in) above top of rail, a capability not found in older vehicles. This allows them to load passengers, including those in wheelchairs, directly from low-rise platforms that are not much more than raised footpaths/sidewalks. This satisfies requirements to provide access to disabled passengers without using expensive wheelchair lifts, while at the same time making boarding faster and easier for other passengers.
Various companies have developed particular low-floor designs, varying from part-low-floor (with internal steps between the low-floor section and the high-floor sections over the bogies), e.g. Citytram and Siemens S70, to 100% low-floor, where the floor passes through a corridor between the drive wheels, thus maintaining a relatively constant (stepless) level from end to end of the tram.
Prior to the introduction of the Škoda ForCity, this carried the mechanical penalty of requiring bogies to be fixed and unable to pivot (except for less than 5 degrees in some trams) and thus reducing curve negotiation. This creates undue wear on the tracks and wheels.
Passengers appreciate the ease of boarding and alighting from low-floor trams and moving about inside 100% low-floor trams. Passenger satisfaction with low-floor trams is high.
Low-floor trams are now running in many cities around the world, including Adelaide, Amsterdam, Bratislava, Dublin, Gold Coast, Helsinki, Hiroshima, Houston, Istanbul, Melbourne, Milan, Prague, Riga, Strasbourg, Sydney, Vienna, Zagreb and Zürich.
The Ultra Low Floor or (ULF) tram is a type of low-floor tram operating in Vienna, Austria as of 1997 and in Oradea, Romania, with the lowest floor-height of any such vehicle. In contrast to other low-floor trams, the floor in the interior of ULF is at sidewalk height (about 18 cm or 7 inches above the road surface), which makes access to trams easy for passengers in wheelchairs or with baby carriages. This configuration required a new undercarriage. The axles had to be replaced by a complicated electronic steering of the traction motors. Auxiliary devices are installed largely under the car's roof.
Articulated trams, invented and first used by the Boston Elevated Railway in 1912–13 at a total length of about twelve meters long (40 ft) for each pioneering example of twin-section articulated tram car, have two or more body sections, connected by flexible joints and a round platform at their pivoting midsection(s). Like articulated buses, they have increased passenger capacity. In practice, these trams can be up to 56 metres (184 ft) long (such as CAF Urbos 3 in Budapest, Hungary), while a regular tram has to be much shorter. With this type, the articulation is normally suspended between carbody sections.
In the Škoda ForCity, which is the world's first 100% low floor tram with pivoting bogies, a Jacobs bogie supports the articulation between the two or more carbody sections. An articulated tram may be low-floor variety or high (regular) floor variety. Newer model trams may be up to 72 metres (236 ft) long and carry 510 passengers at a comfortable 4 passengers/m2. At crush loadings this would be even higher.
Double decker trams were commonplace in Great Britain and Dublin Ireland before most tramways were torn up in the 1950s and 1960s.
New York City's New York Railways experimented in 1912 with a Brill double deck Hedley-Doyle stepless center entrance car, nicknamed the "Broadway Battleship," a term that spread to other large streetcars.
Hobart, Tasmania, Australia made extensive use of double decker trams. Arguably the most unusual double-decker tram used to run between the isolated Western Australian outback town of Leonora and the nearby settlement of Gwalia.
Tram-train operation uses vehicles such as the Flexity Link and Regio-Citadis, which are suited for use on urban tram lines and also meet the necessary indication, power, and strength requirements for operation on main-line railways. This allows passengers to travel from suburban areas into city-centre destinations without having to change from a train to a tram.
It has been primarily developed in Germanic countries, in particular Germany and Switzerland. Karlsruhe is a notable pioneer of the tram-train.
Since the 19th century goods have been carried on rail vehicles through the streets, often near docks and steelworks, for example the Weymouth Harbour Tramway in Weymouth, Dorset. Belgian vicinal tramway routes were used to haul agricultural produce, timber and coal from Blégny colliery while several of the US interurbans carried freight. In Australia, three different "Freight Cars" operated in Melbourne between 1927 and 1977 and the city of Kislovodsk in Russia had a freight-only tram system consisting of one line which was used exclusively to deliver bottled Narzan mineral water to the railway station.
Today, the German city of Dresden has a regular CarGoTram service, run by the world's longest tram trainsets (59.4 metres (195 ft)), carrying car parts across the city centre to its Volkswagen factory. In addition to Dresden, the cities of Vienna and Zürich currently use trams as mobile recycling depots.
At the turn of the 21st century, a new interest has arisen in using urban tramway systems to transport goods. The motivation now is to reduce air pollution, traffic congestion and damage to road surfaces in city centres.
One recent proposal to bring cargo tramways back into wider use was the plan by City Cargo Amsterdam to reintroduce them into the city of Amsterdam. In the spring of 2007 the city piloted this cargo tram operation, which among its aims aimed to reduce particulate pollution in the city by 20% by halving the number of lorries (5,000) unloading in the inner city during the permitted timeframe from 07:00 till 10:30. The pilot involved two cargo trams, operating from a distribution centre and delivering to a "hub" where special electric trucks delivered the trams' small containers to their final destination. The trial was successful, releasing an intended investment of €100 million in a fleet of 52 cargo trams distributing from four peripheral "cross docks" to 15 inner-city hubs by 2012. These specially built vehicles would be 30 feet (9.14 m) long with 12 axles and a payload of 30 tonnes (33.1 short tons; 29.5 long tons). On weekdays, trams are planned to make 4 deliveries per hour between 7 a.m. and 11 a.m. and two per hour between 11 a.m. and 11 p.m. With each unloading operation taking on average 10 minutes, this means that each site would be active for 40 minutes out of each hour during the morning rush hour. In early 2009 the scheme was suspended owing to the financial crisis impeding fund-raising.
Specially appointed hearse trams, or funeral trolley cars, were used for funeral processions in many cities in the late 19th and early 20th century, particularly cities with large tram systems. The earliest known example in North America was Mexico City, which was already operating 26 funeral cars in 1886. In the United States, funeral cars were often given names. At the turn of the century, "almost every major city [in the US] had one or more":93 such cars in operation.
In Milan, Italy, hearse trams were used from the 1880s (initially horse-drawn) to the 1920s. The main cemeteries, Cimitero Monumentale and Cimitero Maggiore, included funeral tram stations. Additional funeral stations were located at Piazza Firenze and at Porta Romana. In the mid-1940s at least one special hearse tram was used in Turin, Italy. It was introduced due to the wartime shortage of automotive fuel.
Two former passenger cars from the Melbourne system were converted and used as mobile offices within the Preston Workshops between 1969 and 1974, by personnel from Commonwealth Engineering and ASEA who were connected with the construction of Melbourne's Z Class cars.
A number of systems have introduced restaurant trams, particularly as a tourist attraction. This is specifically a modern trend. Systems which have or have had restaurant trams include Adelaide, Bendigo and Melbourne, in Australia; Brussels in Belgium; The Hague in the Netherlands; Christchurch in New Zealand; Milan, Rome and Turin in Italy; Moscow, Russia; Almaty, Kazakhstan  and Zurich, Switzerland.
Restaurant trams are particularly popular in Melbourne where three of the iconic "W" class trams have been converted. All three often run in tandem and there are usually multiple meal sittings. Bookings often close months in advance.
Bistro trams with buffets operated between Krefeld and Düsseldorf in Germany, while Helsinki in Finland has a pub tram. Frankfurt, Germany has a tourist circle line called "Ebbelwei-Express", in which the traditional local drink "Apfelwein" (locally called "Ebbelwei", a type of hard cider) is served.
Munich tram No.24, delivered in 1912, was refurbished as a mobile library in 1928. Known as "Städtische Wanderbücherei München", it was in public service until 1970. It was preserved and is now on public display in a railway museum in Hannover. Edmonton, Alberta used a streetcar bookmobile from 1941 to 1956.
After World War Two, in both Warsaw and Wrocław, Poland, so-called trams-nurseries were in operation, collecting children from the workplaces of their parents (often tram employees). These mobile nurseries either carried the children around the system or delivered them to the nursery school run by transport company.
Most systems had cars that were converted to specific uses on the system, other than simply the carriage of passengers. As just one example, the Melbourne system used or uses the following "technical" cars : a Ballast Motor, Ballast Trailers, a Blow Car, Breakdown Cars, Conductors and/or Drivers' Instruction Cars, a Laboratory Testing Car, a Line Marking Car, a Pantograph Testing Car, Per Way Locomotives, Rail Grinders, a Rail Hardner Loco., a Scrapper Car, Scrubbers, Sleeper Carriers, Track Cleaners, a Welding Car, a Wheel Transport Car and a Workshops Locomotive.
Many systems have passenger carrying vehicles with all-over advertising on the exterior and/or the interior.
Many systems have retained historical trams which will often run over parts of the system for tourists and/or tram enthusiasts.
In Melbourne, Australia, a number of the iconic W class run throughout each day in a set route which circles the Central Business District. They are primarily for the use of tourists, although often also used by regular commuters.
There are two main types of tramways, the classic tramway built in the early 20th century with the tram system operating in mixed traffic, and the later type which is most often associated with the tram system having its own right of way. Tram systems that have their own right of way are often called light rail but this does not always hold true. Though these two systems differ in their operation, their equipment is much the same.
Tram stops may be similar to bus stops in design and use, particularly in street-running sections, where in some cases other vehicles are legally required to stop clear of the tram doors. Some stops may resemble to railway platforms, particularly in private right-of-way sections and where trams are boarded at standard railway platform height, as opposed to using steps at the doorway or low-floor trams.
Trams were traditionally operated with separate levers for applying power and brakes. More modern vehicles use a locomotive-style controller which incorporate a dead man's switch. The success of the PCC streetcar had also seen trams use automobile-style foot controls allowing hands-free operation, particularly when the driver was responsible for fare collection.
Tramway track can have different rail profiles to accommodate the various operating environments of the vehicle. They may be embedded into concrete for street-running operation, or use standard ballasted track with railroad ties on high-speed sections. A more ecological solution is to embed tracks into grass turf.
Electric trams use various devices to collect power from overhead lines. The most common device found today is the pantograph, while some older systems use trolley poles or bow collectors. Ground-level power supply has become a recent innovation. Another new technology uses supercapacitors; when an insulator at a track switch cuts off power from the tram for a short distance along the line, the tram can use energy stored in a large capacitor to drive the tram past the gap in the power feed. A rather obsolete system for power supply is conduit current collection.
Throughout the world there are many tram systems; some dating from the late 19th or early 20th centuries. However a large number of the old systems were closed during the mid-20th century because of such perceived drawbacks as route inflexibility and maintenance expense. This was especially the case in North American, Australian, British, French and other West European cities. Some traditional tram systems did however survive and remain operating much as when first built over a century ago. In the past twenty years their numbers have been augmented by modern tramway or light rail systems in cities that had discarded this form of transport. There have also been some new tram systems in cities that never previously had them.
Source, as of October 2015:
Tramways with tramcars (British English) or street railways with streetcars (North American English) were common throughout the industrialised world in the late 19th and early 20th centuries but they had disappeared from most British, Canadian, French and US cities by the mid-20th century.
Since 1980 trams have returned to favour in many places, partly because their tendency to dominate the roadway, formerly seen as a disadvantage, is now considered to be a merit. New systems have been built in the United States, Great Britain, Ireland, France, Australia and many other countries.
In Milan, Italy, the old "Ventotto" trams are considered by its inhabitants a "symbol" of the city. The same can be said of trams in Melbourne in general, but particularly the iconic W class. The Toronto streetcar system had similarly become an iconic symbol of the city, operating the largest network in the Americas as well as the only large-scale tram system in Canada (not including light rail systems, or heritage lines).
The largest tram ((classic tram, streetcar, straßenbahn) and fast tram, (light rail, stadtbahn)) networks in the world by route length (as of 2016) are Melbourne (256 km (159 mi)), St. Petersburg (205.5 km (127.7 mi)), Cologne (194.8 km (121.0 mi)), Berlin 191.6 km (119.1 mi)), Moscow (183 km (114 mi)), Budapest (172 km (107 mi)), Katowice agglomeration (171 km (106 mi)) and Vienna (170 km (110 mi)).
Other large systems include (but are not limited to): Dallas Light Rail, modern streetcar and heritage streetcar (155 km (96 mi)), Sofia (153.6 km (95.4 mi)), Leipzig (148.3 km (92.1 mi)), Łódź (145 km (90 mi)), Bucharest (143 km (89 mi)), Prague (142.4 km (88.5 mi)), Kiev (139.9 km (86.9 mi)), Brussels (138.9 km (86.3 mi)), Warsaw (138 km (86 mi)), Dresden (134 km (83 mi)), Los Angeles (133.1 km (82.7 mi)), Bonn Stadtbahn and streetcars (125.32 km (77.87 mi)), Stuttgart (124.5 km (77.4 mi)), Hanover (121 km (75 mi)), Zagreb (116.3 km (72.3 mi)), Bremen (114.6 km (71.2 mi)), Portland metropolitan area light rail and streetcars (108.2 km (67.2 mi)), Paris (104.9 km (65.2 mi)), Mannheim/Ludwigshafen (103.4 km (64.2 mi)), Riga (99.52 km (61.84 mi)), Gothenburg (95 km (59 mi)), Kassel (93.3 km (58.0 mi)), Manchester (92.5 km (57.5 mi)), Kraków (90 km (56 mi)), Dnipropetrovsk (87.8 km (54.6 mi)), Halle (Saale) (87.6 km (54.4 mi)), San Diego (86.1 km (53.5 mi)), Pavlodar (86 km (53 mi)), Turin (84 km (52 mi)), Bochum/Gelsenkirchen (84 km (52 mi)), Zurich (84 km (52 mi)), Toronto (83 km (52 mi)), Amsterdam (80.5 km (50.0 mi)), Munich (79 km (49 mi)), Antwerp (79 km (49 mi)), Denver (76 km (47 mi)), Iași (76 km (47 mi)), Salt Lake Valley light rail and streetcar (75.42 km (46.86 mi)), Dortmund (75 km (47 mi)), Rotterdam (75 km (47 mi)), St. Louis Metropolitan Area (74 km (46 mi)), Lviv (73.5 km (45.7 mi)), Mykolaiv (72.83 km (45.25 mi)), Karlsruhe (71.5 km (44.4 mi)), Brno (70.4 km (43.7 mi)), Porto (70 km (43 mi)), Sacramento (69 km (43 mi)), Frankfurt am Main (68 km (42 mi)), San Jose and its suburbs (67.9 km (42.2 mi)), Lyon (66.3 km (41.2 mi)), Ostrava (65.7 km (40.8 mi)), Basel (65.7 km (40.8 mi), Donetsk (65.7 km (40.8 mi)), Poznań (65.6 km (40.8 mi)), Minsk (62.8 km (39.0 mi)), Szczecin (60 km (37 mi)), Graz (59.8 km (37.2 mi)), Montpellier (55.6 km (34.5 mi)), Pyongyang (53.5 km (33.2 mi)), Essen (52.4 km (32.6 mi)) and Gdańsk (52.2 km (32.4 mi)). This list is not exhaustive.
The length of the following networks is disputed: Philadelphia trolleycar network comprise from Subway–Surface Trolley Lines with line length 31.9 km (19.8 mi) or by another source 100.8 km (62.6 mi) (the sum of all lines (lines 10 (18.7 km (11.6 mi)), 11 (21.4 km (13.3 mi)), 13 (18.3 km (11.4 mi)), 34 (16.3 km (10.1 mi)) and 36 (26.1 km (16.2 mi))), light rail routes 101 and 102 with length 19.2 km (11.9 mi) and heritage route 15 (line length 13.7 km (8.5 mi)). Put together, it measures 64.6 km (40.1 mi) or 133.5 km (83.0 mi) of line length. The route length is 86.6 km (53.8 mi). Next, San Francisco light rail and streetcars have route length 50 km (31 mi) or 59.4 km (36.9 mi). Except it, in city is 8.3 km (5.2 mi) of cable car. Next networks with disputed route length are Milan (126.5 km (78.6 mi)) or 181 km (112 mi), Düsseldorf Stadtbahn (76 km (47 mi)) or 78 km (48 mi)/streetcars 72 km (45 mi) or 68.5 km (42.6 mi), The Hague (105 km (65 mi)) or by other sources 142 km (88 mi), Strasbourg (40.4 km (25.1 mi)) or 57.5 km (35.7 mi), Kolkata (57 km (35 mi)) or 68 km (42 mi), Nizhny Novgorod (formerly Gorky) (98 km (61 mi)) or 76.5 km (47.5 mi). This list is not exhaustive.
The longest single tram line in the world is the 68 km (42 mi) Belgian Coast Tram, which runs almost the entire length of the Belgian coast. Another fairly long line is the Valley Metro Rail in Phoenix, Arizona, with its 42 km (26 mi).
Historically, the Paris Tram System was, at its peak, the world's largest system, with 1,111 km (690 mi) of track in 1925 (according to other sources, ca. 640 km of route length in 1930). However it was completely closed in 1938. The next largest system appears to have been 857 km (533 mi), in Buenos Aires before 19 February 1963. The third largest was Chicago, with over 850 km (530 mi) of track, but it was all converted to trolleybus and bus services by 21 June 1958. Before its decline, the BVG in Berlin operated a very large network with 634 km (394 mi) of route. Before its system started to be converted to trolleybus (and later bus) services in the 1930s (last tramway closed 6 July 1952), the first-generation London network had 555 km (345 mi) of route in 1931. In 1958 trams in Rio de Jainero were employed on (433 km (269 mi)) of track. The final line, the Santa teresa route was closed in 1968. During a period in the 1980s, the world's largest tram system was in Leningrad (now known as St. Petersburg) with 350 km (220 mi), USSR, and was included as such in the Guinness World Records; however Saint Petersburg's tram system has declined in size since the fall of the Soviet Union. Wiena (Vienna) in 1960 had 340 km (211 mi), before the expansion of bus services and the opening of a subway (1976). Substituting subway services for tram routes continues. 320 km (199 mi) was in Minneapolis-Saint Paul in 1947: There streetcars ended 31 October 1953 in Minneapolis and 19 June 1954 in St. Paul. The Sydney tram network, before it was closed on 25 February 1961, had 291 km (181 mi) of route, and was thus the largest in Australia. As from 1961, the Melbourne system (currently recognised as the world's largest) took over Sydney's title as the largest network in Australia.
Tramway systems were well established in the Asian region at the start of the 20th century, but started a steady decline during the mid to late 1930s. The 1960s marked the end of its dominance in public transportation with most major systems closed and the equipment and rails sold for scrap; however, some extensive original lines still remain in service in Hong Kong and Japan. In recent years there has been renewed interest in the tram with modern systems being built in Japan, the Philippines, and South Korea.
The Northern and Central areas of the City of Colombo in Sri Lanka had an electric Tram Car system (42" Gauge). This system commenced operations about 1900 and was discontinued by 1960. However, a new tram system is in the process of being bought to Colombo as part of the plan of Western Region Megapolis. Other countries with discontinued tram systems include Indonesia, Malaysia, Thailand, Pakistan and Vietnam. However, a tram system is planned for construction in Gwadar, Pakistan where construction started in late 2011. Trams are also under construction in DHA City, Karachi. In China the cities of Beijing, Zhuhai, Nanjing and Shenzhen are planning tram networks for the future.
The first Japanese tram line was inaugurated in 1895 as the Kyoto Electric Railroad. The tram reached its zenith in 1932 when 82 rail companies operated 1,479 kilometers of track in 65 cities. The tram declined in popularity through the remaining years of the 1930s and during the 1960s many of the remaining operational tramways were shut down and dismantled.
In many European cities much tramway infrastructure was lost in the mid-20th century, though not always on the same scale as in other parts of the world such as North America. Most of Central and Eastern Europe retained the majority of its tramway systems and it is here that the largest and busiest tram systems in the world are found. Many European cities are rehabilitating, upgrading, expanding and reconstructing their old tramway lines and building new tramway lines. Whereas most systems and vehicles in the tram sector are found in Central and Eastern Europe, in the 1960s and 1970s, tram systems were shut down in many places in Western Europe, however urban transportation has been experiencing a sustained long running revival since the 1990s.
In most North American cities, streetcar lines were largely torn up in the mid-20th century for a variety of financial, technological and social reasons. Exceptions included Boston, New Orleans, Newark, Philadelphia (with a much shrunken network), Pittsburgh, San Francisco, Cleveland, Toronto and Mexico City. Pittsburgh had kept most of its streetcar system serving the city and many suburbs until severe cutbacks on 27 January 1967, making it the longest-lasting large-network US streetcar system, though Pittsburgh's surviving streetcar lines were converted to light rail in the 1980s.
Toronto currently has the largest streetcar system in the Americas in terms of track length and ridership, operated by the Toronto Transit Commission. This is the only large-scale streetcar system existing in Canada, not including the light rail systems that some Canadian cities currently operate, or heritage streetcar lines operating only seasonally. Toronto's system currently uses Canadian Light Rail Vehicles and Articulated Light Rail Vehicles, after a history of using PCCs, Peter Witt cars, and horse-drawn carriages. The TTC has begun accepting delivery of a fleet of 204 of a variant of Bombardier's Flexity Outlook (also used in some European tram systems) as a replacement. Newer light rail lines in Toronto and Kitchener-Waterloo will be using the Flexity Freedom.
Streetcars once existed in Edmonton and Calgary, but both Canadian cities shut down their streetcar systems. In the late 1970s and early 1980s, both cities built and expanded new light rail systems. Streetcars also once operated in cities such as Ottawa, Montreal, Quebec City, Kitchener, Hamilton, Kingston, London, Windsor, Peterborough, Regina, and Saskatoon. Some of these cities have restored their old streetcars and now run them as a heritage feature for tourists, such as the Vancouver Downtown Historic Railway.
San Francisco's Muni Metro system is the largest surviving streetcar system in the United States, and has even revived previously closed streetcar lines such as the F Market & Wharves heritage streetcar line.
In a trend started in the 1980s, some American cities have brought back streetcars, examples of these being Memphis, Portland, Tampa, Little Rock, Seattle and Dallas. Prior to 2000, most of these new-generation streetcar systems were heritage streetcar lines, using vintage or replica-vintage vehicles, but following the 2001 opening of the Portland Streetcar system – the first to use modern vehicles – most new US systems have been designed to use modern, low-floor cars. Several additional cities are planning or proposing new streetcar systems, and such systems are under construction in Atlanta, Charlotte, Cincinnati, Dallas (a second system), Detroit, Kansas City, Los Angeles, Milwaukee, Oklahoma City, Tucson, and Washington DC. Alternatively, in the late 20th century, several cities installed modern light rail systems, in part along the same corridors as their old streetcars systems, the first of these being the San Diego Trolley in San Diego in 1981.
Historically, there have been trams in the following Australian cities and towns: Brisbane, Queensland; Rockhampton, Queensland; Sydney, New South Wales; Newcastle, NSW; Maitland, NSW; Broken Hill, NSW; Yass, NSW; Camden, NSW; Melbourne, Victoria; Geelong, Victoria; Ballarat, Victoria; Bendigo, Victoria; Sorrento, Victoria; Adelaide, South Australia; Gawler, South Australia; Victor Harbor, South Australia; Moonta-Wallaroo, South Australia; Perth, Western Australia; Fremantle, WA; Kalgoorlie, WA; Laverton, WA; Hobart, Tasmania; and Launceston, Tasmania. These ranged from extensive systems to single lines. The Sydney system, which closed in 1961, was the most extensive and the largest passenger carrier of any Australian public transport system then or since, moving over 400 million passengers per annum, at its peak.
Virtually all known types of motive power have been utilised at some stage, in Australia.
Today, trams can be found in Melbourne (by length, the world's largest system), and to a lesser extent, Adelaide; all other major cities having largely dismantled their networks by the 1970s. Sydney reintroduced its tram in 1997 on a modern light rail network, while Ballarat and Bendigo retained their trams as heritage systems. In 2008 and 2009, the Bendigo Tramway Co. Ltd. conducted trials utilising their heritage trams for regular public transport. Portland, Victoria introduced a tourist tram in 1996 - this uses a former Melbourne cable car dummy and trailer car, but utilising a hidden diesel motor. A completely new publlic transport system opened on the Gold Coast, Queensland on 20 July 2014. The new system is known as the G:link and is the first tram/ light rail system in Queensland, Australia since Brisbane closed their tram network in 1969. As from March 2014, the Sydney line was extended to Dulwich Hill, with a further major line planned from Circular Quay to the Sydney south-eastern suburbs. There are also plans for the reintroduction of trams in Perth, Hobart and the western suburbs of Sydney around Parramatta, and for completely new systems in Canberra, and on the Sunshine Coast, Queensland. (Ironically, Walter Burley Griffin's 1912 prize-winning design for Canberra envisioned an extensive tram system.) The construction of light rail in Canberra, to be known as Capital Metro, became the major issue of the October 2016 ACT election, with the ruling ALP strongly supporting Capital Metro, and the coalition of the Liberal Party and the National Party promising not to proceed with the building of light rail but, instead, increase the number of buses. The ALP won the election  and construction of Stage 1 of the light rail has commenced.
The railway into the centre of Newcastle was truncated to Wickham on 25 December 2014, The railway line was to be replaced with a tram but the implementation of this has been postponed a number of times. A bus replacement currently runs from Wickham to Newcastle.
Many early Australian trams used a lowered central section between bogies (trucks). This made passenger access easier, reducing the number of steps required to reach the inside of the vehicle. It is believed that the design first originated in Christchurch, New Zealand, in the first decade of the 20th century. These cars were frequently referred to as "drop-centres". Trams built since the 1970s have had conventional high or low floors.
New Zealand's last public transport tramway system, that of Wellington, closed in 1966. Nevertheless, there had been tramways ranging from large, comprehensive systems to single lines, in Auckland, Christchurch, Dunedin, Gisborne, Invercargill, Napier, New Plymouth, Greymouth, Westport, Hokitika, Ross, Brighton, Charleston, Kamiere and Kamara. New Zealand's tram gauges were not standardized; the 15 systems used no less than five gauges, making swapping of rolling stock from system to system difficult. Christchurch has subsequently reintroduced heritage trams over a new CBD route, but the overhead wiring plus some track was damaged by the earthquake of 2011. In November 2013 a limited circuit was reopened. Auckland has recently introduced heritage trams into the Wynyard area, near the CBD, using former Melbourne trams. Preserved Auckland trams from the MOTAT have made cameo appearances during Heritage Weeks. Heritage lines exist at Auckland's MOTAT, the Wellington Tramway Museum at Queen Elizabeth Park on the Kapiti Coast, the Tramways Trust Wanganui and the Tramway Historical Society at Ferrymead in Christchurch, as well as the Christchurch Tramway Limited in the central city.
Buenos Aires in Argentina had once one of the most extensive tramway networks in the world with over 857 km (535 mi) of track, most of it dismantled during the 1960s in favor of bus transportation. A new line, the PreMetro line E2 system feeding the Line E of the Buenos Aires Subway has been operating for the past few years on the outskirts of Buenos Aires.
Also in the city Mendoza, in Argentina, a new tramway system is in construction, the Metrotranvía of Mendoza, which will have a route of 12.5 km and will link five districts of the Greater Mendoza conurbation. The opening of the system is scheduled for August 2011.
There are many references to trams in popular culture, major references include:-
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Model trams are popular in HO scale (1:87) and O scale (1:48 in the US and generally 1:43,5 and 1:45 in Europe and Asia). They are typically powered and will accept plastic figures inside. Common manufacturers are Roco and Lima, with many custom models being made as well. The German firm Hödl and the Austrian Halling specialize in 1:87 scale.
In the US, Bachmann Industries is a mass supplier of HO streetcars and kits. Bowser Manufacturing has produced white metal models for over 50 years. There are many boutique vendors offering limited run epoxy and wood models. At the high end are highly detailed brass models which are usually imported from Japan or Korea and can cost in excess of $500. Many of these run on 16.5 mm (0.65 in) gauge track, which is correct for the representation of 4 ft 8 1⁄2 in (1,435 mm) (standard gauge) in HO scale as in US and Japan, but incorrect in 4 mm (1:76.2) scale, as it represents 4 ft 8 1⁄2 in (1,435 mm). This scale/gauge hybrid is called OO scale. O scale trams are also very popular among tram modellers because the increased size allows for more detail and easier crafting of overhead wiring. In the US these models are usually purchased in epoxy or wood kits and some as brass models. The Saint Petersburg Tram Company produces highly detailed polyurethane non-powered O Scale models from around the world which can easily be powered by trucks from vendors like Q-Car.
It is thought that the first example of a working model tramcar in the UK built by an amateur for fun was in 1929, when Frank E. Wilson created a replica of London County Council Tramways E class car 444 in 1:16 scale, which he demonstrated at an early Model Engineer Exhibition. Another of his models was London E/1 1800, which was the only tramway exhibit in the Faraday Memorial Exhibition of 1931. Together with likeminded friends, Frank Wilson went on to found the Tramway & Light Railway Society in 1938, establishing tramway modelling as a hobby.
Normally, the Bombardier plant produces one light rail vehicle (LRV) every three weeks, said spokesperson Marc Laforge. That's not happening while a strike at the company's Thunder Bay plant is in its eighth week. Once production resumes, however, Bombardier can accelerate its schedule to three LRVs a month. The two sides are back in bargaining, and Bombardier will discuss a revised delivery schedule with the TTC, he said.
Seeing these beautiful behemoths rolling through Toronto might force us to reconsider the complaint heard over and over that streetcars are forever in the way. Once all 204 new vehicles have been deployed in four or five years, they will be the undisputed masters of the streets; it will be cars that will have to make way.
Torontonians taking the Spadina streetcar might have noticed something different when they stepped on board today. That's because the Toronto Transit Commission has finally launched the first of its new streetcars.
Mr. Nathan was a passenger by No. 2 tramway car [...] [he] alighted from the car at the southern end, but before he got clear of the rails the car moved onwards [...] he was thus whirled round by the sudden motion of the carriage and his body was brought under the front wheel.
He was to produce the first motor that operated without gears of any sort, having its armature direct-connected to the car axle.
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