In railway signalling , a token is a physical object which a train driver is required to have or see before entering onto a particular section of single track . The token is clearly endorsed with the names of the section to which it belongs. A token system is more commonly used for single lines because of the greater risk of collision in the event of a mistake being made by a signaller or traincrew than on double lines .
106-514: The West Sussex Railway was a 8 and a quarter miles long standard gauge light railway between Chichester and Selsey , in West Sussex. The line, which opened in 1897, was also known as Hundred of Manhood and Selsey Tramway . It was opened as a rail tramway in order to avoid having to comply with regulations that managed conventional railways in the United Kingdom. The line was built under
212-757: A railway with a track gauge of 1,435 mm ( 4 ft 8 + 1 ⁄ 2 in ). The standard gauge is also called Stephenson gauge (after George Stephenson ), international gauge , UIC gauge , uniform gauge , normal gauge in Europe, and SGR in East Africa. It is the most widely used track gauge around the world, with about 55% of the lines in the world using it. All high-speed rail lines use standard gauge except those in Russia , Finland , Uzbekistan , and some line sections in Spain . The distance between
318-442: A branch line is a dead end with a simple shuttle train service, then a single token is sufficient. The driver of any train entering the branch line (or occupying any part of it) must be in possession of the token, and no collision with another train is possible. For convenience in passing it from hand to hand, the token was often in the form of a staff, typically 800 mm (31 in) long and 40 mm (1.6 in) diameter, and
424-458: A central control computer by internet. The central computer conducts a "census" of keys before releasing a solenoid and freeing a key for the required section of track—an engraved tag identifying the respective section of track is securely attached to the relevant key. The system is in use on the Isle of Man Railway between Castletown and Port Erin. In certain circumstances it was convenient to shorten
530-628: A country (for example, 1,440 mm or 4 ft 8 + 11 ⁄ 16 in to 1,445 mm or 4 ft 8 + 7 ⁄ 8 in in France). The first tracks in Austria and in the Netherlands had other gauges ( 1,000 mm or 3 ft 3 + 3 ⁄ 8 in in Austria for the Donau Moldau line and 1,945 mm or 6 ft 4 + 9 ⁄ 16 in in
636-518: A driver may enter the single line section only if in physical possession of that object. Existing in a variety of physical forms, such as a staff, tablet, key, or ball, the object is marked to indicate to which single track section it belongs. The token system was developed in Britain in the 19th century, to enable safe working of single-line railways. For the very first time this system was proposed by Mr. Henry Woodhouse for Standedge Tunnels in 1849. If
742-440: A glimpse at Selsey completes, I believe, the "passenger rolling stock" of the little railway. ... The Company own two engines, the "Selsey" and the "Chichester", the former for "passenger" and the latter, a "six-wheels coupled" for "goods" traffic. The "Selsey", a trim-looking little side-tank locomotive, is painted dark blue with a red lining ... The boiler is surmounted with a handsome brass dome on which are two spring balances [for
848-487: A leather pouch attached to a hoop, and the fireman could put their arm through the hoop held up by the signalman, and vice versa as the locomotive ran past. In UK practice the permitted speed for this was 15 mph (24 km/h) in daylight, but there are stories of drivers anxious to make up lost time when running late, and passing the exchange point at much higher speeds; bruised upper arms were common among signalmen and firemen on such lines. Fixed token exchange apparatus
954-497: A quarter of a mile section (now a public footpath) west of Hunston Village can be traced. The northern end of the latter ends at the abutments of the now defunct Tramway bridge across the Chichester Canal. A short section of trackbed is now a footpath from north of the Chichester Canal to Stockbridge Road, Chichester. The platforms of Hunston and Chalder station can also still be located in fields although badly overgrown. In 1913
1060-408: A short single track section). Three staffs were provided for the 100 km length, one each for the sections Pakenham— Warragul , Warragul—Moe, and Moe—Traralgon. The first two of these are partly or totally double-track sections, but the staffs in this case were applicable to both tracks, the effect being that only one of the tracks could be used at a time. The token system is still regularly used on
1166-433: A single token does not provide convenient operation when consecutive trains are to be worked in the same direction. The simple token system was therefore extended: if one train was to be followed by another in the same direction, the driver of the first train was required to be shown the token, but not take possession of it (in theory he was supposed to physically touch the token, but this was not strictly followed). The driver
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#17330852561991272-505: A standard gauge of 4 ft 8 + 1 ⁄ 2 in ( 1,435 mm ), and those in Ireland to a new standard gauge of 5 ft 3 in ( 1,600 mm ). In Great Britain, Stephenson's gauge was chosen on the grounds that existing lines of this gauge were eight times longer than those of the rival 7 ft or 2,134 mm (later 7 ft 1 ⁄ 4 in or 2,140 mm ) gauge adopted principally by
1378-489: A truck for luggage and parcels between them; they had rails on the roof to contain additional parcels stowed there. The Steam and Things model making company has good original photographs of the cars at [1] . Two more railcars were acquired from the Shefflex Motor Company of Tinsley in 1928; they too operated as a unit with a truck between. The railcars were provided with a crude timber buffer beam in front of
1484-467: Is a hybrid between conventional token working and internet technology. Conventional "trapped key" pin tumbler locks (held in fixed position by solenoids ) are mounted in key-release units set up at each end of controlled single line. The number of locks in each unit is determined by the expected traffic frequency; optionally at times short sections may be combined to reduce the number of stops ( see Long section working, below ). The units are connected to
1590-513: Is better known. The land was acquired from co-operative landowners without the need for compulsory powers, although this forced a slightly indirect route. It started from a point a little to the south of the London, Brighton and South Coast Railway (LB&SCR) station at Chichester; it left westwards and immediately turned south, running broadly southwards to Selsey itself, a distance of 8 + 1 ⁄ 4 miles (13.3 km). Just south of Chichester,
1696-410: Is blocked and traffic is to be worked in both directions over the remaining line. The pilotman (identified by a red armband with "PILOTMAN" in white letters) rides in the cab with the driver, or if another train is due to follow, the pilotman must issue the driver with a single line working ticket and authorise him to enter the section. The signalman must not clear the starting signal until instructed by
1802-745: Is currently operated by the Ghana Railway Company Limited . Kojokrom-Sekondi Railway Line (The Kojokrom-Sekondi line is a branch line that joins the Western Railway Line at Kojokrom ) Indian nationwide rail system ( Indian Railways ) uses 1,676 mm ( 5 ft 6 in ) broad gauge. 96% of the broad gauge network is electrified. The railway tracks of Java and Sumatra use 1,067 mm ( 3 ft 6 in ). Planned and under construction high-speed railways to use 1,668 mm ( 5 ft 5 + 21 ⁄ 32 in ) to maintain interoperability with
1908-413: Is provided on the single line section, and the token itself, or a key fixed to the end of it, unlocks the points for shunting there. The token is locked in the apparatus there, and the driver cannot retrieve the token until the points have been set to the through running position and locked again. In special situations where the sidings at the intermediate location are extensive, the equipment is arranged for
2014-504: Is referred to as a train staff . Such a staff is usually literally a wooden staff with a brass plate stating the two signal boxes between which it is valid. In UK terminology, this method of working on simple branch lines was originally referred to as One Engine in Steam (OES) , and later One-Train Working (OTW) . However the system was used on long through lines as well; R H Dutton, Chairman of
2120-433: Is that it restricts the number of train movements that can be made. For a larger railway system, it becomes exceptionally limiting in the level of operations that it allows, with the increased risk of mistakes being made, possibly leading to a collision. Instead, reliance is placed not on employing only one train but on having a single physical object, known as a "token", available for the single track section, and ruling that
2226-688: The Derwent Valley Line in Derbyshire and the Liskeard to Looe line in Cornwall . On the latter, the train guard not only operates the Tyer's No.9 electric token instrument controlling the upper section of the branch, but operates the points as well. The lower section is operated on the "One Engine in Steam" principle with a simple wooden staff. Possession of the staff is required to unlock the ground frame controlling
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#17330852561992332-518: The First World War , it suffered financially as road transport increased in the 1920s. Despite attempts to be more efficient through modernisations, such as the introduction of petroleum driven rail car services, the railway closed to all traffic in January 1935. Very little remains of the railway's infrastructure because of land redevelopment and urban expansion along its permanent way . The passing of
2438-589: The Light Railways Act 1896 prompted local businessmen to consider whether a light railway connection to Selsey could be made. The town lies on the coast about 8 miles south of the City of Chichester. As they prepared their scheme, they found that it would be possible to get authorisation much more simply under the Railway Construction Facilities Act 1864 . By structuring the line as a tramway,
2544-598: The Liverpool and Manchester Railway , authorised in 1826 and opened 30 September 1830. The extra half inch was not regarded at first as very significant, and some early trains ran on both gauges daily without compromising safety. The success of this project led to Stephenson and his son Robert being employed to engineer several other larger railway projects. Thus the 4 ft 8 + 1 ⁄ 2 in ( 1,435 mm ) gauge became widespread and dominant in Britain. Robert
2650-451: The London and South Western Railway explained in 1876 the slow journey time between Exeter and Plymouth by saying, "the cause of the delay is the stopping at every station on the staff system. That really does cause a great delay because if the staff is not there, the train must stop while a man is sent on a horse to get it [from the other end of the section]"; quoted in Williams. Using only
2756-567: The London, Chatham and Dover Railway (LC&DR). Finally, in 1931 two six-wheel coaches were acquired from the Southern Railway, probably for summer Saturdays when the railcars would be inadequate; they had been built for the LC&DR. Between the World Wars a number of life-expired main line railway coaches were acquired by private individuals for the purpose of converting them to dwellings on
2862-534: The Narberth Road and Maenclochog Railway ; Ringing Rock is the English translation of Maenclochog. In 1921, Stephens was seeking means of reducing operating expenses, and a trial was made of a Wolseley-Siddeley petrol railcar on the line; this did not immediately lead to adoption, but in 1924, acquired two railcars built on Ford Model T chassis, with bodies by Edmunds of Thetford. They operated together, back-to-back with
2968-776: The North Island Main Trunk and on other lines like the Wairarapa Line , the Tyer’s Electric Train Tablet with the No. 7 instrument was used. Tablet exchangers were developed by Wynne after trials of the Australian design by Quirke. The tablet system allowed for banking engines used for steep sections with a separate bank engine key. Advances in technology led to the development of electronic token systems. Trains are able to run over consecutive single-track sections, with
3074-521: The Plymouth, Devonport and South Western Junction Railway and was originally 3 ft 6 in gauge. The first Chichester arrived with the name Wembley having worked there previously, and the engine continued to be known by that name for some time. Ringing Rock was so named because Stephens transferred the name plate from a locomotive on the Kent and East Sussex Railway that had previously worked on
3180-659: The Electric Train Service, it still receive tokens from trains arriving from Bahau Station on the East Coast Line. Similarly, the Gemas Station Master needs to pass a key token for trains bound for the East Coast. The final token exchange normally happens at Tumpat and Gemas but this also happens at Kuala Lipis and Dabong as these two stations are the terminus of some Eastern Shuttle (SH) train services. This system
3286-590: The Emerald temporary staff to be activated, the Menzies Creek to Lakeside staff is required to be locked away at Menzies Creek. A similar situation occurs with Cockatoo station, whereby for it to be enacted as a Temporary Staff Station, the Lakeside to Gembrook staff is required to be locked away at Lakeside. The token method of working is sometimes still used for temporary situations such as through engineering works or where
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3392-478: The First World War, independent operators of road lorries, and, gradually, road passenger vehicles, became numerous, and the inconvenience of using the tramway became prominent: agricultural produce and supplies needed to be carted to and from the tramway station, and the thinly distributed population were more easily serviced by a road vehicle, especially when that could run to the centre of Chichester or direct to
3498-889: The Great Western Railway. It allowed the broad-gauge companies in Great Britain to continue with their tracks and expand their networks within the "Limits of Deviation" and the exceptions defined in the Act. After an intervening period of mixed-gauge operation (tracks were laid with three rails), the Great Western Railway finally completed the conversion of its network to standard gauge in 1892. In North East England, some early lines in colliery ( coal mining ) areas were 4 ft 8 in ( 1,422 mm ), while in Scotland some early lines were 4 ft 6 in ( 1,372 mm ). The British gauges converged starting from 1846 as
3604-469: The LB&SCR station there. Traffic declined seriously in the 1920s. In 1924 the company changed its name to West Sussex Railway (Tramway Section) in 1924. Mitchell and Smith suggest that this was a preliminary to securing a takeover by the Southern Railway, the successor to the LB&SCR. The Southern Railway considered the matter but declined to proceed. Southdown Motor Services had been formed in 1915 and
3710-631: The Netherlands for the Hollandsche IJzeren Spoorweg-Maatschappij ), but for interoperability reasons (the first rail service between Paris and Berlin began in 1849, first Chaix timetable) Germany adopted standard gauges, as did most other European countries. The modern method of measuring rail gauge was agreed in the first Berne rail convention of 1886. Several lines were initially built as standard gauge but were later converted to another gauge for cost or for compatibility reasons. 2,295 km (1,426 mi) Victoria built
3816-583: The Somerset & Dorset Joint Railway at Foxcote, near Radstock, in the Foxcote collision of 1876 . This occurred before the S&DJR was equipped for token working and was relying on block instruments only – a catalogue of errors led to two passenger trains entering the same section from opposite ends. In double line working, at times when traffic is light it is convenient to "switch out" an intermediate signal box, allowing
3922-719: The Whitaker system on the Somerset & Dorset Joint Railway and the Manson system on the Midland & Great Northern Joint Railway and the Great North of Scotland Railway . When the Aberdeen to Inverness passenger service was converted to diesel multiple unit operation in the late 1950s, the train-borne equipment was fixed adjacent to the train guard's compartment. A special buzzer code confirmed to
4028-629: The advantages of equipment interchange became increasingly apparent. By the 1890s, the entire network was converted to standard gauge. The Royal Commission made no comment about small lines narrower than standard gauge (to be called "narrow gauge"), such as the Ffestiniog Railway . Thus it permitted a future multiplicity of narrow gauges in the UK. It also made no comments about future gauges in British colonies, which allowed various gauges to be adopted across
4134-463: The auspices of the light railway entrepreneur, Colonel Stephens , who would later manage the line as the West Sussex Railway (Tramway Section). In December 1910 the line was inundated (flooded by seawater) when an embankment failed at Pagham Harbour . It was not reinstated so work had to be carried out to raise the line above the waters. Although the line was successful in the decades before
4240-496: The car, doubtless thanking his lucky stars for the little railway that ran within a few feet of the garden of his house. There were no signals on the line; the train control system was train staff and ticket with two sections, broken at Sidlesham. A fierce and prolonged storm took place in December 1910, culminating in a breach of the sea wall during the night of 15 December. 2,000 acres (810 hectares) of land were flooded, including
4346-476: The coal mines of County Durham . He favoured 4 ft 8 in ( 1,422 mm ) for wagonways in Northumberland and Durham , and used it on his Killingworth line. The Hetton and Springwell wagonways also used this gauge. Stephenson's Stockton and Darlington railway (S&DR) was built primarily to transport coal from mines near Shildon to the port at Stockton-on-Tees . Opening in 1825,
West Sussex Railway - Misplaced Pages Continue
4452-581: The colonies. Parts of the United States, mainly in the Northeast, adopted the same gauge, because some early trains were purchased from Britain. The American gauges converged, as the advantages of equipment interchange became increasingly apparent. Notably, all the 5 ft ( 1,524 mm ) broad gauge track in the South was converted to "almost standard" gauge 4 ft 9 in ( 1,448 mm ) over
4558-459: The course of two days beginning on 31 May 1886. See Track gauge in the United States . In continental Europe, France and Belgium adopted a 1,500 mm ( 4 ft 11 + 1 ⁄ 16 in ) gauge (measured between the midpoints of each rail's profile ) for their early railways. The gauge between the interior edges of the rails (the measurement adopted from 1844) differed slightly between countries, and even between networks within
4664-419: The crew's work on a branch line, and surrendered at the end of their work there. Where the single line section is part of a through route, then it is likely that each passing train would require to surrender and collect a token at each token station. Where the trains stop at every station this is a convenient arrangement, but where some trains run through without requiring to make a call (i.e. express trains), it
4770-503: The directors proposed a light railway extension from Hunston to West Itchenor and East Wittering. However, the First World War put paid to the idea. This line was surveyed by the builders of the Romney, Hythe and Dymchurch Railway in the early 1920s when they were looking for somewhere to build their miniature line which now runs in Kent. Apparently, despite being otherwise ideal for their purposes,
4876-735: The first railways to the 5 ft 3 in ( 1,600 mm ) Irish broad gauge. New South Wales then built to the standard gauge, so trains had to stop on the border and passengers transferred, which was only rectified in the 1960s. Queensland still runs on a narrow gauge but there is a standard gauge line from NSW to Brisbane. NMBS/SNCB 3,619 km (2,249 mi) Brussels Metro 40 km (25 mi) Trams in Brussels 140 km (87 mi) 1,032 km (641 mi) The Toronto Transit Commission uses 4 ft 10 + 7 ⁄ 8 in ( 1,495 mm ) gauge on its streetcar and subway lines. Takoradi to Sekondi Route,
4982-499: The first signalman. An alternative system employs special long-section token systems; when long section working is to be instituted, all the short section tokens must be in their respective instruments; by switching to the long-section method, tokens for the long section can then be obtained in the ordinary way. Obviously all the long-section tokens must be restored before the normal working can be resumed. Token instruments can be arranged for unattended operation, when they are operated by
5088-773: The guard that the correct token had been successfully received. Mechanical staff exchangers were also used where trains did not stop on the single line sections of the Main South , Main North and North Coast lines of the New South Wales Government Railways in Australia. On the Victorian Railways automatic staff exchangers survived on the North Eastern , Western , and Geelong-Ballarat lines until as recently as
5194-429: The initial gauge of 4 ft 8 in ( 1,422 mm ) was set to accommodate the existing gauge of hundreds of horse-drawn chaldron wagons that were already in use on the wagonways in the mines. The railway used this gauge for 15 years before a change was made, debuting around 1850, to the 1,435 mm ( 4 ft 8 + 1 ⁄ 2 in ) gauge. The historic Mount Washington Cog Railway ,
5300-534: The inner sides of the rails) to be used. Different railways used different gauges, and where rails of different gauge met – a " gauge break " – loads had to be unloaded from one set of rail cars and reloaded onto another, a time-consuming and expensive process. The result was the adoption throughout a large part of the world of a "standard gauge" of 1,435 mm ( 4 ft 8 + 1 ⁄ 2 in ), allowing interconnectivity and interoperability. A popular legend that has circulated since at least 1937 traces
5406-400: The inside edges of the rails is defined to be 1,435 mm except in the United States, Canada, and on some heritage British lines, where it is defined in U.S. customary / Imperial units as exactly "four feet eight and one half inches", which is equivalent to 1,435.1 mm. As railways developed and expanded, one of the key issues was the track gauge (the distance, or width, between
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#17330852561995512-581: The issue of two tokens at the same time. In the Abermule train collision of 1921, also on the Cambrian Railways, lax working procedures allowed the safeguards provided by the electric token system to be circumvented; a driver was handed a token for the wrong section, and proceeded on the mistaken belief that the token was correct. To try to prevent this, the UK Board of Trade Railway Inspectorate recommended that
5618-610: The late 1980s. On the South Australian Railways , auto staff exchangers were used on the former broad-gauge line between Adelaide and Port Pirie . In all these Australian states, both steam and later diesel electric locomotives were fitted with auto exchangers. On the New Zealand Railways , where most lines are single track, multiple systems were used like the Winter’s block system and Sykes’ lock and block working. On
5724-506: The line being ballasted with gravel, and, if I mistake not, a goodly bulk of sea shingle mixed therewith". The line opened to Selsey Town station on 27 August 1897 and it was extended to Selsey Beach in 1898. The construction and land purchase had cost £21,570 and rolling stock had cost £3,268. The first passenger coaches were newly built bogie vehicles with open verandas at the end; one was built by Hurst Nelson, and three by Falcon of Loughborough. About 1900 another new coach of similar design
5830-574: The line between Girvan and Stranraer in south west Scotland . Traditional token systems are also in use on heritage railways in Britain, for example on the Mid Hants Railway and the West Somerset Railway which is fitted throughout with Tyer's electric token instruments. The Bluebell Railway has short section token working between adjacent boxes and long section working available between Sheffield Park and Kingscote. The token system
5936-406: The line crossed the Chichester Canal, which still had some small traffic volume passing, and a simple manually operated lifting bridge was provided there. The contractor for the construction needed a locomotive for the work, and the locomotive was moved on the public road to get to the line south of the Chichester Canal. It was hauled by a traction engine, and it ran on rails placed on their sides in
6042-510: The line was discounted because of the number of road crossings which would have been prohibitively expensive to either gate or bridge. The Southern Railway also surveyed it for takeover and improvement in the early 1930s but decided against both. It was known locally as the Selsey Tram. It was also sometimes called "The Siddlesham Snail" after one of the villages having a station of that name. Sidlesham station's nameboard originally perpetuated
6148-429: The locomotive! [Later we came] to Hunston Station, a tiny iron building with a little platform, but a most important point of the line, in that it is the coaling and water depôt, and supplies of both were taken in by the engine, the train backing to allow this to be done, so that our car stood right across the main road during the operation. ... Chalder, another little station was reached at 10.58. We left our rear truck in
6254-422: The normal token instruments and provided at intermediate places where the trolley might be off-tracked (or stored overnight). A variation of the token system is working by pilotman , where the place of the token is taken by a person who is designated the pilotman . This system is instituted if there is a failure of the token apparatus, a signal failure within a single line section, or on double lines when one line
6360-653: The numerous public road level crossings would not require the special safety arrangements required for railway operation, and accordingly they formed the Hundred of Manhood and Selsey Tramway . The company was incorporated on 29 April 1896. H. F. Stephens was appointed as engineer to design the line and supervise construction; this was his second such role, after the Rye and Camber Tramway . His subsequent career pursued several very local lines often run on minimal finance; during war service he became (Lieutenant-) Colonel Stephens, by which he
6466-492: The old spelling "Siddlesham". A song was written criticising the line which verse went "The Siddlesham snail, the Siddlesham snail, the boilers burst, she's off the rail, the Siddlesham snail!" On 3 September 1923, the 8:15 a.m. train to Chichester derailed near Golf Club Halt, killing the fireman, H. Barnes, and injuring the driver, C. C. Stewart. None of the few passengers were injured. The locomotive, Wembley and
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#17330852561996572-411: The only road-bridge the line possesses, pausing a few minutes to get rid of our five trucks at a siding. About midway on the journey home, I, who was seated in the front compartment of the car, saw a red flag being violently waved a few hundred yards ahead. ... as the train slowed down, the individual in question, a stalwart, gaitered farmer, removed the danger signal from his stick, and calmly came aboard
6678-570: The operation being controlled by radio from a central control room. Every train carries an electronic unit that receives and sends an encrypted block of data which represents the token. The system is designed so that the control centre cannot issue a new token for a section of line until the current one is 'returned'. Trains cannot send tokens to each other. This system allows the whole line to operate without any additional signalling personnel, and has functioned without major incident. The Ternkey System (" T oken E xchange using R andom N umbers" system)
6784-499: The origin of the 1,435 mm ( 4 ft 8 + 1 ⁄ 2 in ) gauge even further back than the coalfields of northern England, pointing to the evidence of rutted roads marked by chariot wheels dating from the Roman Empire . Snopes categorised this legend as "false", but commented that it "is perhaps more fairly labeled as 'Partly true, but for trivial and unremarkable reasons. ' " The historical tendency to place
6890-405: The outermost portions of the wheel rims, it became apparent that for vehicles travelling on rails, having main wheel flanges that fit inside the rails is better, thus the minimum distance between the wheels (and, by extension, the inside faces of the rail heads ) was the important one. A standard gauge for horse railways never existed, but rough groupings were used; in the north of England none
6996-629: The picture above are in use on the Buenos Aires (Constitución Station) to Mar del Plata line (Ferrocarril Roca) in Argentina, as of 2019. The token system is also used on the Seaton tramway between Seaton and Riverside and on the running lines of some tram museums. In Malaysia, signaling token signs are still used on the KTM East Coast Line between Gemas and Tumpat. Although Gemas Station mainly serves
7102-409: The pilotman to do so. The pilotman must ride with the driver if it is the last train to run in that direction. Thus pilotman working is analogous to the "staff and ticket" system, described above, where the pilotman himself becomes the token and his verbal instruction is the equivalent of the ticket. It is sometimes necessary to provide the pilotman with a personal locomotive to cater for disruptions to
7208-430: The points at Coombe Junction , where the two sections meet. There is no other signalling on the branch except to control entry and exit to and from the main line. After early experience with token systems, it became customary for the starting signal at token stations to be interlinked with the token instrument; on withdrawal of a token, the starting signal lever was released for one pull. Sometimes an intermediate siding
7314-420: The practice was deprecated in the UK, although some examples did exist for example at Beddington Lane on the Wimbledon – West Croydon line before resignalling. Usually in such cases special interlocking was provided between the two instruments at the intermediate signal box to ensure that trains could not be accepted from opposing directions at the same time. A disaster at such an intermediate location occurred on
7420-469: The present-day State Railway of Thailand system. Although most use occurs in regional areas, some use appears in the capital city, Bangkok, such as the Makkasan to Khlong Tan section etc. Sri Lanka Railways uses a tablet exchanging system on the up-country railway line. Russian Railways uses Electric Token Block on some lines, most notably the Yanisyarvi – Lodeynoe Pole railway. The electric staff instruments manufactured by Webb and Thompson shown in
7526-436: The radiator, as protection. These are depicted by Steam and Things at [2] . See also Further Reading , below. The initial coaching stock fleet consisted of three bogie saloon coaches from Falcons, acquired in 1897. A similar coach was purchased from Hurst Nelson about 1900. In 1910 three four-wheel coaches were acquired from the Lambourn Valley Railway . In 1916 a further four four-wheelers were obtained second hand from
7632-405: The railway line north of Ferry. Part of the line was said to be under 12 feet of water. During the inundation, trains ran from each end of the line, and a horse bus operated in the gap, from Mill Pond Halt to Ferry station. At this time the company was relatively prosperous, and had the resources to raise the line by up to ten feet (3.0 m) over a considerable length. Following the end of
7738-400: The release. Once a token has been removed, another cannot be removed until the token which is "out" is replaced in either instrument. (There are variations on this sequence of events.) By this means, it can be ensured that at any one time, only one token is available to be issued to a driver. Tokens belonging to adjacent sections have different configurations to prevent them being inserted into
7844-411: The rest of the network. All other railways use 1,668 mm ( 5 ft 5 + 21 ⁄ 32 in ) ( broad gauge ) and/or 1,000 mm ( 3 ft 3 + 3 ⁄ 8 in ) metre gauge . BLS , Rigi Railways (rack railway) 449 km Several states in the United States had laws requiring road vehicles to have a consistent gauge to allow them to follow ruts in
7950-484: The road. Those gauges were similar to railway standard gauge. Token (railway signalling) The operation of a bidirectional single track line has the hazard of two trains colliding. The simplest way to prevent such collisions is to have only one train in the section at any given time. Such a system is known as "one-engine-in-steam” (OES) or “one-train working" (OTW). This system is used on some branches of rail networks, and on heritage railways. The main disadvantage
8056-563: The roadway; workmen progressively moved the rails to the front of the engine as it made its slow movement. The locomotive was later named Chichester . Whitechurch describes the event; referring to the Chichester and Birdham Canal (i.e. the Chichester Canal), he says: I am able to supply a unique photograph of an incident that happened during the construction of the line owing to this canal. The engine had been brought down to Chichester and
8162-400: The safety valves], while a neat copper ring is an adornment to the chimney. Before we got away on the journey, a very remarkable operation in shunting had to be performed, albeit it was commenced two minutes after the time for starting. Two trucks were brought in from a siding, and so manipulated with engine and by hand, that finally one was attached in rear of the car, and the other in front of
8268-423: The service. In such a case the pilotman's locomotive is usually coupled to the front of the actual train, but practice may vary depending on local track layout, types of trains etc. The use of a pilotman for such purposes pre-dates the use of tokens. Until the late 20th century, the token system was standard on British single-track lines and it still remains on a number of lines there as well as elsewhere, such as
8374-408: The shore at Selsey. In many cases these vehicles made their final railway journey over the West Sussex Railway to Selsey. A few of these remain in situ, often as part of enlarged buildings, but most have been replaced. There remains one recognisable wooden-bodied Pullman car. The half mile of track from Selsey Town to Selsey Beach was out of use by the end of 1908. (Butt says October 1904.) The line
8480-493: The shunting train to be put wholly inside the sidings, clear of the main line; in this situation an intermediate token instrument can be provided, enabling the driver to surrender the token so that normal through working can take place on the single line while their train is at the sidings. A corresponding arrangement sometimes applied where permanent way maintenance was carried out by motorised trolley. Usually this used special "occupation key" instruments which were interlocked with
8586-408: The siding here ... [At Siddlesham] we performed some marvellous shunting operations, which occupied six minutes, and which resulted in our entering on the last stage of our journey, with three trucks in front of the engine and two behind our carriage—the very best example of a mixed train it has ever been my fortune to behold! ... Just before reaching Selsey we passed through the only cutting and under
8692-454: The signal boxes on either side to communicate directly for train control. On single lines this is more complicated because of the train tokens being identified with single line sections, but the difficulty can be overcome by some form of long section working. A simple system used separable train staffs which fit together when intermediate block posts are closed, so that a driver receives the train staff for two or more consecutive sections from
8798-464: The signalling system has yet to be provided. In December 1981, a new underground line was opened in Melbourne, which provided a circular service around the city's central business district. Although normal services were not to begin for some time, for two months special services operated on Sundays to allow people to try the new line, and for this period the line operated with a train staff, although there
8904-400: The signals controlling entry to the single line section ( starting or section signals) were locked at danger unless a token had been released from the relevant token instrument. This was not universally adopted and many single line sections continued without such safeguards well into the 1960s. In a basic railway situation, the token can be collected personally by the driver at the start of
9010-427: The single line sections by providing an intermediate signal box equipped with token instruments without providing a passing loop there. This was done if there was, for example, an important siding connection at the intermediate location. It also enabled following through trains to run at closer headways, but did not facilitate opposing movements. Because of the greater risk of collision in the event of irregular working,
9116-485: The term "narrow gauge" for gauges less than standard did not arise for many years, until the first such locomotive-hauled passenger railway, the Ffestiniog Railway , was built. In 1845, in the United Kingdom of Great Britain and Ireland , a Royal Commission on Railway Gauges reported in favour of a standard gauge. The subsequent Gauge Act ruled that new passenger-carrying railways in Great Britain should be built to
9222-507: The three coaches left the track. The inquest returned a verdict of accidental death, but the jury expressed the opinion that the Chief Engineer of the company was indirectly to blame, as there was evidence of neglect in the upkeep of the track. Model kits for the Shefflex railcar (in several scales) are available from Steam and Things . Standard gauge A standard-gauge railway is
9328-460: The ticket was not issued incorrectly, a book of numbered tickets was kept in a locked box, the key to which was permanently fastened to the token, or was the token. In addition, the lock prevented the token from being removed until the ticket box was closed, and it could not be closed unless the book of tickets was in the box. Once a ticket was issued, its number was recorded in a Train Register book, and
9434-417: The token was locked in a secure place. The system is known as staff and ticket. In a variation on that principle, called divisible train staff , a section of the token or staff, referred to as the ticket portion , was designed to be removed and handed to the driver, instead of a paper ticket. The staff and ticket system was still too inflexible for busy lines, as it did not allow for the situation where
9540-507: The train crew at intermediate crossing loops or at the terminus of the line. This system is widely found in Australia, where traffic density on many lines is low. In the UK it is known as the "No-signalman key token system". Examples on the UK national network are the North Devon Line , where the system was brought into use on 1 December 1987, the Heart of Wales Line (commissioned in 1986 ),
9646-447: The train intended to carry the actual token was cancelled or running very late. To provide for this, the electric train token system was developed. Each single-line section is provided with a pair of token instruments, one at the signal box at each end. A supply of identical tokens is stored in the instruments, which are connected by telegraph lines. A token can be removed from one instrument only if both signalmen co-operate in agreeing to
9752-434: The wheels of horse-drawn vehicles around 5 ft ( 1,524 mm ) apart probably derives from the width needed to fit a carthorse in between the shafts. Research, however, has been undertaken to support the hypothesis that "the origin of the standard gauge of the railway might result from an interval of wheel ruts of prehistoric ancient carriages". In addition, while road-travelling vehicles are typically measured from
9858-426: The world's first mountain -climbing rack railway , is still in operation in the 21st century, and has used the earlier 4 ft 8 in ( 1,422 mm ) gauge since its inauguration in 1868. George Stephenson introduced the 1,435 mm ( 4 ft 8 + 1 ⁄ 2 in ) gauge (including a belated extra 1 ⁄ 2 in (13 mm) of free movement to reduce binding on curves ) for
9964-502: The wrong instrument. Nevertheless, a head-on collision occurred on a section of single track on the Cambrian Railways on 18 January 1918. The drivers of both engines held the correct token, issued from Tyer's token machines as they started their respective journeys, but the electrical circuits linking the machines at either end were also used for telephones and, together with a possible line fault caused by bad weather, this allowed
10070-415: Was abolished on 22 March 2013. The Puffing Billy Railway in Melbourne, Victoria, has used a staff and ticket system since it was originally opened from Upper Ferntree Gully to Gembrook. The current line from Belgrave to Gembrook has permanent staff stations at Belgrave, Menzies Creek, Lakeside and Gembrook. A temporary staff station exists at Emerald town to allow trains to pass at Emerald on busy days. For
10176-440: Was acquired from Hurst Nelson. The stations on the line were: In 1910 there were seven trains each way on weekdays (one extra on Mondays) and three on Sundays. Journey time for the 7¼ miles was 30 minutes. Whitechurch gave a description of a trip on the line in 1897: One car stood by the little platform, ready to start. ... This was a third class car. A first class stood in a siding. ... Another car of which I caught
10282-476: Was closed in January 1935. For the modern railway explorer this is one of the least rewarding lines to trace as the formation was almost completely at ground level, and almost nothing remains except a half mile section alongside Pagham harbour where the track was raised following the inundation of 1910. A section of about a quarter of a mile, now a farm track between Pagham Harbour and the Selsey Golf Club and
10388-508: Was given a written authority to enter the single line section, referred to as the ticket . The train could then proceed, and a second train could follow. In the earliest days, the second train could proceed after a designated time interval, as on double lines at the time. However, after the Armagh rail disaster of 1889, block working became mandatory. Seeing the train staff provided assurance that there could be no head-on collision. To ensure that
10494-587: Was in use on the Hurstbridge railway line , Melbourne, Australia between Greensborough and Eltham (Miniature Electric Staff) and Eltham and Hurstbridge (Train Staff and Ticket) until replaced by electronic signalling in early 2013. The Greensborough to Eltham section was abolished on 31 January 2013, along with half of the Eltham to Hurstbridge section, as far as Diamond Creek . The final Diamond Creek to Hurstbridge section
10600-768: Was less than 4 ft ( 1,219 mm ). Wylam colliery's system, built before 1763, was 5 ft ( 1,524 mm ), as was John Blenkinsop 's Middleton Railway ; the old 4 ft ( 1,219 mm ) plateway was relaid to 5 ft ( 1,524 mm ) so that Blenkinsop's engine could be used. Others were 4 ft 4 in ( 1,321 mm ) (in Beamish ) or 4 ft 7 + 1 ⁄ 2 in ( 1,410 mm ) (in Bigges Main (in Wallsend ), Kenton , and Coxlodge ). English railway pioneer George Stephenson spent much of his early engineering career working for
10706-562: Was much wanted on the other side of the canal, but as the bridge was not completed for traffic it was impossible to cross. The little locomotive, therefore, had to perform a slow and circuitous journey by road of over three miles, being hauled by a traction engine on rails, simply placed down on the road in front of the railway engine and taken up from behind it alternately. The line was built to standard gauge, 4 ft 8 + 1 ⁄ 2 in (1,435 mm), with Vignoles (flat-bottom) rails spiked to light transverse sleepers, "the whole of
10812-475: Was necessary for the signalman to exchange tokens with the fireman (in the case of steam trains) as the train passed at slow speed. In the case of driver-only operated trains, a dead-mans hold over button was provided, so the driver could exchange the token without the emergency brake being applied. A large staff could be handed over without any special apparatus, but if the system in use employed miniature staffs, tablets or key tokens, these were usually placed in
10918-454: Was no provision for tickets to be used. A very unusual token working was instituted on the line between Pakenham and Traralgon in Victoria , Australia for several months in 2006 whilst the line was being upgraded. During this period, the line was closed during the day, but opened each night to allow a few goods trains through. The line is double track between Pakenham and Moe (except for
11024-589: Was reported to have said that if he had had a second chance to choose a gauge, he would have chosen one wider than 4 ft 8 + 1 ⁄ 2 in ( 1,435 mm ). "I would take a few inches more, but a very few". During the " gauge war " with the Great Western Railway , standard gauge was called " narrow gauge ", in contrast to the Great Western's 7 ft 1 ⁄ 4 in ( 2,140 mm ) broad gauge . The modern use of
11130-409: Was running timetabled bus services locally, and increasingly passengers preferred to take the bus—at a higher fare—and passenger receipts declined further. During this period freight traffic remained relatively steady at about £2,000 a year. The following steam locomotives were used on the line: Sources for the above table include Kidner Woodcock. and Mitchell and Smith Hesperus had come from
11236-513: Was used on some railways. Trackside equipment was fitted near each signal box to hold the pouch containing the token and to receive the token pouch that was being given up. Certain railways developed mechanical systems that enabled faster handover using catcher devices. These could be extended from the locomotive cabside just before the train passed the exchange point and then automatically retracted afterwards. These enabled handover speeds of 40 mph (64 km/h). Examples of such systems include
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