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Token (railway signalling)

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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 .

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132-402: 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 is that it restricts

264-803: A fair trial . The English monarchs, through inheritance of substantial territories in France and claims to the French crown, were also heavily involved in conflicts in France, most notably the Hundred Years' War , while the Kings of Scots were in an alliance with the French during this period. Early modern Britain saw religious conflict resulting from the Reformation and the introduction of Protestant state churches in each country. The English Reformation ushered in political, constitutional, social and cultural change in

396-509: A subpolar oceanic climate . Higher elevations in Scotland experience a continental subarctic climate and the mountains experience a tundra climate . The prevailing wind is from the southwest and bears frequent spells of mild and wet weather from the Atlantic Ocean, although the eastern parts are mostly sheltered from this wind. Since the majority of the rain falls over the western regions,

528-587: A welfare state was established, and a comprehensive, publicly funded healthcare system, the National Health Service , was created. The rise of nationalism in the colonies coincided with Britain's much-diminished economic position, so that a policy of decolonisation was unavoidable. Independence was granted to India and Pakistan in 1947. Over the next three decades, most colonies of the British Empire gained their independence, and many became members of

660-442: 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

792-456: 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

924-516: 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

1056-456: A leading role in the movement to abolish slavery worldwide through the blockade of Africa and pressing other nations to end their trade with a series of treaties. In 1800 the parliaments of Great Britain and Ireland each passed an Act of Union, uniting the two kingdoms and creating the United Kingdom of Great Britain and Ireland on 1 January 1801. After the defeat of France at the end of

1188-487: 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

1320-818: A policy of splendid isolation in Europe, and attempted to contain Russian influence in Afghanistan and Persia , in what came to be known as the Great Game . During this time, Canada , Australia and New Zealand were granted self-governing dominion status. At the turn of the century, Britain's industrial dominance became challenged by the German Empire and the United States . The Edwardian era saw social reform and home rule for Ireland become important domestic issues, while

1452-504: A result of a shortage of workers in the 1950s, the government encouraged immigration from Commonwealth countries . In the following decades, the UK became a more multi-ethnic society. Despite rising living standards in the late 1950s and 1960s, the UK's economic performance was less successful than many of its main competitors such as France, West Germany and Japan. The UK was the first democratic nation to lower its voting age to 18 in 1969. In

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1584-777: A series of connected wars (including the English Civil War ) which led to the temporary overthrow of the monarchy, with the execution of King Charles I , and the establishment of the short-lived unitary republic of the Commonwealth of England , Scotland and Ireland. Although the monarchy was restored , the Interregnum along with the Glorious Revolution of 1688 and the subsequent Bill of Rights 1689 in England and Claim of Right Act 1689 in Scotland ensured that, unlike much of

1716-408: 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

1848-433: 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

1980-411: Is a constitutional monarchy and parliamentary democracy . The UK has three distinct jurisdictions: England and Wales , Scotland , and Northern Ireland . Since 1999, Scotland, Wales and Northern Ireland have their own governments and parliaments which control various devolved matters. A developed country , the UK has the world's sixth-largest economy by nominal gross domestic product (GDP). It

2112-591: Is a nuclear state , and is ranked fifth globally in military expenditure . The UK has been a permanent member of the UN Security Council since its first session in 1946. It is a member of the Commonwealth of Nations , Council of Europe , G7 , OECD , NATO , Five Eyes , AUKUS and CPTPP . British influence can be observed in the legal and political systems of many of its former colonies , and British culture remains globally influential, particularly in language , literature , music and sport . English

2244-467: 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

2376-420: Is also referred to as a "province". With regard to Northern Ireland, the descriptive name used "can be controversial, with the choice often revealing one's political preferences". The term "Great Britain" conventionally refers to the island of Great Britain, or politically to England, Scotland and Wales in combination. It is sometimes used as a loose synonym for the United Kingdom as a whole. The word England

2508-410: 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

2640-500: Is occasionally used incorrectly to refer to the United Kingdom as a whole, a mistake principally made by people from outside the UK. The term "Britain" is used as a synonym for Great Britain , but also sometimes for the United Kingdom. Usage is mixed: the UK Government prefers to use the term "UK" rather than "Britain" or "British" on its website (except when referring to embassies), while acknowledging that both terms refer to

2772-481: Is only the one specific nominal term 'Great Britain' which invariably excludes Northern Ireland". The BBC historically preferred to use "Britain" as shorthand only for Great Britain, though the present style guide does not take a position except that "Great Britain" excludes Northern Ireland. The adjective "British" is commonly used to refer to matters relating to the United Kingdom and is used in law to refer to United Kingdom citizenship and nationality . People of

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2904-413: 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

3036-525: Is ranked 2nd out of 180 countries in the Environmental Performance Index . A law has been passed that UK greenhouse gas emissions will be net zero by 2050. England accounts for 53 per cent of the UK, covering 50,350 square miles (130,395 km ). Most of the country consists of lowland terrain, with upland and mountainous terrain northwest of the Tees–Exe line which roughly divides

3168-502: 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

3300-519: Is the Isle of Wight . Scotland accounts for 32 per cent of the UK, covering 30,410 square miles (78,772 km ). This includes nearly 800 islands , notably the Hebrides , Orkney Islands and Shetland Islands. Scotland is the most mountainous constituent country of the UK, the Highlands to the north and west are the more rugged region containing the majority of Scotland's mountainous land, including

3432-678: Is the highest peak in Wales. Wales has over 1,680 miles (2,704 kilometres) of coastline including the Pembrokeshire Coast . Several islands lie off the Welsh mainland, the largest of which is Anglesey ( Ynys Môn ). Cambrian Railways The Cambrian Railways owned 230 miles (370 km) of track over a large area of mid Wales . The system was an amalgamation of a number of railways that were incorporated in 1864, 1865 and 1904. The Cambrian connected with two larger railways with connections to

3564-502: Is the world's most widely spoken language and the third-most spoken native language . The Acts of Union 1707 declared that the Kingdom of England and Kingdom of Scotland were "United into One Kingdom by the Name of Great Britain". The term "United Kingdom" has occasionally been used as a description for the former Kingdom of Great Britain , although its official name from 1707 to 1800

3696-629: The Cambrian Railways Act 1864 ( 27 & 28 Vict. c. cclxii) received royal assent . The company was formed by amalgamating most of the railway companies in mid Wales: the Oswestry and Newtown Railway , the Llanidloes and Newtown Railway , the Newtown and Machynlleth Railway and the Oswestry, Ellesmere and Whitchurch Railway . The shareholders of these constituent companies became the shareholders in

3828-572: The 1884 Reform Act championed by William Gladstone granting suffrage to a majority of males for the first time. The British population increased at a dramatic rate, accompanied by rapid urbanisation , causing significant social and economic stresses. By the late 19th century, the Conservatives under Benjamin Disraeli and Lord Salisbury initiated a period of imperial expansion in Africa , maintained

3960-524: The Atlantic slave trade , mainly between 1662 and 1807 when British or British-colonial slave ships transported nearly 3.3 million slaves from Africa. The slaves were taken to work on plantations , principally in the Caribbean but also North America . However, with pressure from the abolitionism movement , Parliament banned the trade in 1807, banned slavery in the British Empire in 1833, and Britain took

4092-624: The Battle of Culloden in 1746, after which the Scottish Highlanders were forcibly assimilated into Scotland by revoking the feudal independence of clan chiefs . The British colonies in North America that broke away in the American War of Independence became the United States . British imperial ambition turned towards Asia, particularly to India . British merchants played a leading part in

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4224-645: The Cairngorms , Loch Lomond and The Trossachs and Ben Nevis which at 1,345 metres (4,413 ft) is the highest point in the British Isles. Wales accounts for less than 9 per cent of the UK, covering 8,020 square miles (20,779 km ). Wales is mostly mountainous, though South Wales is less mountainous than North and mid Wales . The highest mountains in Wales are in Snowdonia and include Snowdon ( Welsh : Yr Wyddfa ) which, at 1,085 metres (3,560 ft),

4356-633: The Chinnor and Princes Risborough Railway and No. 250 as a museum on the neighbouring Cholsey and Wallingford Railway having formerly been the Wallingford station café. Both No. 247 and No. 250 are grounded bodies. An unidentified first class passenger body also stands on the Tanat Valley Light Railway . A full brake car, No. 104, was recovered in August 2018 and currently resides on

4488-512: The Commonwealth of Nations . The UK was the third country to develop a nuclear weapons arsenal (with its first atomic bomb test, Operation Hurricane , in 1952), but the post-war limits of Britain's international role were illustrated by the Suez Crisis of 1956. The international spread of the English language ensured the continuing international influence of its literature and culture . As

4620-688: 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

4752-731: The European Convention on Human Rights . The UK remained a great power with global diplomatic and military influence and a leading role in the United Nations and NATO . The UK broadly supported the United States' approach to the " war on terror " in the early 21st century. British troops fought in the War in Afghanistan , but controversy surrounded Britain's military deployment in Iraq , which saw

4884-568: The European Union (EU) in 1992, the UK was one of the 12 founding member states. From the late 1960s, Northern Ireland suffered communal and paramilitary violence (sometimes affecting other parts of the UK) conventionally known as the Troubles . It is usually considered to have ended with the 1998 Belfast "Good Friday" Agreement . Following a period of widespread economic slowdown and industrial strife in

5016-486: The Falkland Islands , leading to the 10-week Falklands War in which Argentine forces were defeated. The inhabitants of the islands are predominantly descendants of British settlers, and strongly favour British sovereignty, expressed in a 2013 referendum . From 1984, the UK economy was helped by the inflow of substantial North Sea oil revenues. Another British overseas territory, Gibraltar , ceded to Great Britain in

5148-527: The French Revolutionary Wars and Napoleonic Wars (1792–1815), the United Kingdom emerged as the principal naval and imperial power (with London the largest city in the world from about 1830). Unchallenged at sea , British dominance was later described as Pax Britannica ("British Peace"), a period of relative peace among the great powers (1815–1914) during which the British Empire became

5280-633: The Great Western Railway . This allowed it to control the transportation of goods and passengers across mid Wales. The earliest section of the Cambrian was the section from Three Cocks to Talyllyn Junction . This had been opened in 1816 as part of the Hay Railway, a tramroad worked by horses connecting the town of Hay-on-Wye with the Brecknock and Abergavenny Canal at Brecon . The western section

5412-576: The Kingdom of Ireland to create the United Kingdom of Great Britain and Ireland in 1801. Most of Ireland seceded from the UK in 1922 as the Irish Free State , and the Royal and Parliamentary Titles Act 1927 created the present United Kingdom. The UK became the first industrialised country and was the world's foremost power for the majority of the 19th and early 20th centuries, particularly during

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5544-630: The Labour Party emerged from an alliance of trade unions and small socialist groups in 1900, and suffragettes campaigned for women's right to vote. Britain was one of the principal Allies that defeated the Central Powers in the First World War (1914–1918). Alongside their French, Russian and (after 1917) American counterparts, British armed forces were engaged across much of the British Empire and in several regions of Europe, particularly on

5676-498: 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

5808-774: 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

5940-622: The Representation of the People Act 1918 . After the war, Britain became a permanent member of the Executive Council of the League of Nations and received a mandate over a number of former German and Ottoman colonies. Under the leadership of David Lloyd George , the British Empire reached its greatest extent, covering a fifth of the world's land surface and a quarter of its population. By

6072-925: The Soviet Union formed in 1941, leading the Allies against the Axis powers . There were eventual hard-fought victories in the Battle of the Atlantic , the North Africa campaign and the Italian campaign . British forces played important roles in the Normandy landings of 1944 and the liberation of Europe . The British Army led the Burma campaign against Japan, and the British Pacific Fleet fought Japan at sea. British scientists contributed to

6204-449: The Western Front . The high fatalities of trench warfare caused the loss of much of a generation of men, with lasting social effects in the nation and a great disruption in the social order. Britain had suffered 2.5 million casualties and finished the war with a huge national debt. The consequences of the war persuaded the government to expand the right to vote in national and local elections to all adult men and most adult women with

6336-408: The coastline paradox . It is connected to continental Europe by the Channel Tunnel , which at 31 miles (50 km) (24 miles (38 km) underwater) is the longest underwater tunnel in the world. The UK contains four terrestrial ecoregions: Celtic broadleaf forests , English Lowlands beech forests , North Atlantic moist mixed forests , and Caledonian conifer forests . The area of woodland in

6468-436: The largest protest in British history in opposition to the government led by Tony Blair . The Great Recession severely affected the UK economy. The Cameron–Clegg coalition government of 2010 introduced austerity measures intended to tackle the substantial public deficits. Studies have suggested that policy led to significant social disruption and suffering. A referendum on Scottish independence in 2014 resulted in

6600-428: The " Pax Britannica " between 1815 and 1914. At its height in the 1920s, the British Empire encompassed almost a quarter of the world's landmass and population, and was the largest empire in history . However, its involvement in the First World War and the Second World War damaged Britain's economic power and a global wave of decolonisation led to the independence of most British colonies. The United Kingdom

6732-512: The 16th century and established the Church of England . Moreover, it defined a national identity for England and slowly, but profoundly, changed people's religious beliefs. Wales was fully incorporated into the Kingdom of England , and Ireland was constituted as a kingdom in personal union with the English crown. In what was to become Northern Ireland, the lands of the independent Catholic Gaelic nobility were confiscated and given to Protestant settlers from England and Scotland. In 1603,

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6864-439: The 16th century in the annexation of Wales , the domination of Scotland , and the establishment of the British Empire . Over the course of the 17th century, the role of the British monarchy was reduced, particularly as a result of the English Civil War . In 1707, the Kingdom of England and the Kingdom of Scotland united under the Treaty of Union to create the Kingdom of Great Britain . The Acts of Union 1800 incorporated

6996-401: The 1713 Treaty of Utrecht, is a key military base . A referendum in 2002 on shared sovereignty with Spain was rejected by 98.97% of voters in the territory. Around the end of the 20th century, there were major changes to the governance of the UK with the establishment of devolved administrations for Scotland, Wales and Northern Ireland. The statutory incorporation followed acceptance of

7128-406: The 1970s, the Conservative government of the 1980s led by Margaret Thatcher initiated a radical policy of monetarism , deregulation, particularly of the financial sector (for example, the Big Bang in 1986) and labour markets, the sale of state-owned companies (privatisation), and the withdrawal of subsidies to others. In 1982, Argentina invaded the British territories of South Georgia and

7260-476: The 5th century) united with the Picts to create the Kingdom of Scotland in the 9th century. In 1066, the Normans invaded England from northern France. After conquering England , they seized large parts of Wales , conquered much of Ireland and were invited to settle in Scotland, bringing to each country feudalism on the Northern French model and Norman-French culture. The Anglo-Norman ruling class greatly influenced, but eventually assimilated with,

7392-464: The Brittonic area mainly to what was to become Wales , Cornwall and, until the latter stages of the Anglo-Saxon settlement, the Hen Ogledd (northern England and parts of southern Scotland). Most of the region settled by the Anglo-Saxons became unified as the Kingdom of England in the 10th century. Meanwhile, Gaelic speakers in north-west Britain (with connections to the north-east of Ireland and traditionally supposed to have migrated from there in

7524-449: The Cambrian Railways was taken over by the GWR on grouping in 1923, the GWR kept the works open as a regional carriage and wagon works, and locomotive repair shop for the associated locomotive shed . In 1911 there were 91 locomotives and one rail motor car in the Cambrian's rolling stock. At grouping in 1922, 94 standard-gauge engines and five narrow-gauge engines were transferred to the GWR, identified by type and builder at Locomotives of

7656-420: 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

7788-433: 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

7920-462: The Great Western Railway . After becoming part of the London Midland Region in 1963, the depot closed in January 1965, the works in early 1966. A Grade II listed building , the works today is an antiques centre, small business hub and document storage centre. A registered museum dedicated to the history of the Cambrian Railways is run by Cambrian Heritage Railways in Oswestry. A selection of original Cambrian Railways coaches have survived into

8052-452: The Manhattan Project whose task was to build an atomic weapon. Once built, it was decided, with British consent, to use the weapon against Japan. The UK was one of the Big Three powers (along with the US and the Soviet Union) who met to plan the post-war world ; it drafted the Declaration by United Nations with the United States and became one of the five permanent members of the United Nations Security Council . It worked closely with

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8184-495: The Scottish electorate voting by 55.3 to 44.7% to remain part of the United Kingdom. In 2016, 51.9 per cent of voters in the United Kingdom voted to leave the European Union . The UK left the EU in 2020. On 1 May 2021, the EU–UK Trade and Cooperation Agreement came into force. The COVID-19 pandemic had a severe impact on the UK's economy , caused major disruptions to education and had far-reaching impacts on society and politics in 2020 and 2021. The United Kingdom

8316-435: 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

8448-484: The UK in 2023 is estimated to be 3.25 million hectares, which represents 13% of the total land area in the UK. Most of the United Kingdom has a temperate climate, with generally cool temperatures and plentiful rainfall all year round. The temperature varies with the seasons seldom dropping below 0  °C (32  °F ) or rising above 30 °C (86 °F). Some parts, away from the coast, of upland England, Wales, Northern Ireland and most of Scotland, experience

8580-433: The UK into lowland and upland areas. Lowland areas include Cornwall , the New Forest , the South Downs and the Norfolk Broads . Upland areas include the Lake District , the Pennines , the Yorkshire Dales , Exmoor , and Dartmoor . The main rivers and estuaries are the Thames , Severn , and the Humber . England's highest mountain is Scafell Pike , at 978 metres (3,209 ft) in the Lake District; its largest island

8712-402: The United Kingdom and that elsewhere "British government" is used at least as frequently as "United Kingdom government". The UK Permanent Committee on Geographical Names recognises "United Kingdom", "UK" and "U.K." as shortened and abbreviated geopolitical terms for the United Kingdom of Great Britain and Northern Ireland in its toponymic guidelines; it does not list "Britain" but notes that "it

8844-411: The United Kingdom is 1339.7 hours, which is just under 30% of the maximum possible. The hours of sunshine vary from 1200 to about 1580 hours per year, and since 1996 the UK has been and still is receiving above the 1981 to 2010 average hours of sunshine. Climate change has a serious impact on the country. A third of food price rise in 2023 is attributed to climate change. As of 2022, the United Kingdom

8976-400: The United Kingdom is a sovereign country, England, Scotland, Wales and Northern Ireland are also widely referred to as countries . The UK Prime Minister's website has used the phrase "countries within a country" to describe the United Kingdom. Some statistical summaries, such as those for the twelve NUTS 1 regions , refer to Scotland, Wales and Northern Ireland as "regions". Northern Ireland

9108-472: The United Kingdom is surrounded by the Atlantic Ocean , the North Sea , the English Channel , the Celtic Sea , and the Irish Sea . The United Kingdom had an estimated population of over 68.2 million people in 2023. The capital and largest city of both England and the United Kingdom is London , whose wider metropolitan area is the largest in Western Europe , with a population of 14.9 million. The cities of Edinburgh , Cardiff , and Belfast are

9240-436: The United Kingdom use several different terms to describe their national identity and may identify themselves as being British , English , Scottish , Welsh , Northern Irish , or Irish ; or as having a combination of different national identities. Settlement by Cro-Magnons of what was to become the United Kingdom occurred in waves beginning by about 30,000 years ago. The island has been continuously inhabited only since

9372-491: The United Kingdom. The 1928 Equal Franchise Act gave women electoral equality with men in national elections. Strikes in the mid-1920s culminated in the General Strike of 1926 . Britain had still not recovered from the effects of the First World War when the Great Depression (1929–1932) led to considerable unemployment and hardship in the old industrial areas, as well as political and social unrest with rising membership in communist and socialist parties. A coalition government

9504-626: The United States to establish the IMF , World Bank and NATO . The war left the UK severely weakened and financially dependent on the Marshall Plan , but it was spared the total war that devastated eastern Europe. In the immediate post-war years, the Labour government under Clement Attlee initiated a radical programme of reforms, which significantly impacted British society in the following decades . Major industries and public utilities were nationalised ,

9636-719: 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

9768-607: The acquisition and settlement of overseas colonies , particularly in North America and the Caribbean. Though previous attempts at uniting the two kingdoms within Great Britain in 1606, 1667, and 1689 had proved unsuccessful, the attempt initiated in 1705 led to the Treaty of Union of 1706 being agreed and ratified by both parliaments. On 1 May 1707, the Kingdom of Great Britain was formed,

9900-516: The continental mainland . It comprises England , Scotland , Wales , and Northern Ireland . The UK includes the island of Great Britain , the north-eastern part of the island of Ireland , and most of the smaller islands within the British Isles , making up a total area of 94,354 square miles (244,376 km ). Northern Ireland shares a land border with the Republic of Ireland ; otherwise,

10032-419: 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

10164-649: The decades-long process of European integration , the UK was a founding member of the Western European Union , established with the London and Paris Conferences in 1954. In 1960 the UK was one of the seven founding members of the European Free Trade Association (EFTA), but in 1973 it left to join the European Communities (EC). In a 1975 referendum 67% voted to stay in it. When the EC became

10296-477: The eastern parts are the driest. Atlantic currents, warmed by the Gulf Stream , bring mild winters, especially in the west where winters are wet and even more so over high ground. Summers are warmest in the southeast of England and coolest in the north. Heavy snowfall can occur in winter and early spring on high ground, and occasionally settles to great depth away from the hills. The average total annual sunshine in

10428-499: 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

10560-575: The first year, Britain and its Empire continued the war against Germany. Churchill engaged industry, scientists and engineers to support the government and the military in the prosecution of the war effort. In 1940, the Royal Air Force defeated the German Luftwaffe in the Battle of Britain . Urban areas suffered heavy bombing during the Blitz . The Grand Alliance of Britain, the United States and

10692-569: The formal control it exerted over its own colonies, British dominance of much of world trade meant that it effectively controlled the economies of regions such as East Asia and Latin America . Throughout the Victorian era , political attitudes favoured free trade and laissez-faire policies. Beginning with the Great Reform Act in 1832, Parliament gradually widened the voting franchise , with

10824-781: The global hegemon and adopted the role of global policeman. From 1853 to 1856, Britain took part in the Crimean War , allied with the Ottoman Empire against Tsarist Russia , participating in the naval battles of the Baltic Sea known as the Åland War in the Gulf of Bothnia and the Gulf of Finland , among others. Following the Indian Rebellion in 1857 , the British government led by Lord Palmerston assumed direct rule over India . Alongside

10956-773: 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

11088-580: 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

11220-403: The kingdoms of England, Scotland and Ireland were united in a personal union when James VI, King of Scots , inherited the crowns of England and Ireland and moved his court from Edinburgh to London; each country nevertheless remained a separate political entity and retained its separate political, legal, and religious institutions. In the mid-17th century, all three kingdoms were involved in

11352-408: The last retreat of the ice around 11,500 years ago. By the end of the region's prehistoric period , the population is thought to have belonged largely to a culture termed Insular Celtic , comprising Brittonic Britain and Gaelic Ireland . The Roman conquest , beginning in 43 AD, and the 400-year rule of southern Britain , was followed by an invasion by Germanic Anglo-Saxon settlers, reducing

11484-610: 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

11616-624: 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

11748-590: The line were at Aberystwyth (part of which has been restored and reopened as a J D Wetherspoon in the mid-2000s). On vesting its headquarters in July 1865 in Oswestry, the company built the Cambrian railways works to the north of the station on Gobowen Road. Its construction hastened Oswestry's boom as a railway town , from a population of 5,500 in 1861, to nearly 10,000 in 1901. Built of local red brick and costing £28,000,

11880-524: The local cultures. Subsequent medieval English kings completed the conquest of Wales and tried unsuccessfully to annex Scotland . Asserting its independence in the 1320 Declaration of Arbroath , Scotland maintained its independence thereafter, albeit in near-constant conflict with England . In 1215 the Magna Carta was the first document to state that no government was above the law, that citizens have rights protecting them and that they were entitled to

12012-509: The locomotive erecting shop had a central traverser which was hand-operated, serving 12 roads on each side. On the far north end of the works, 11 sidings accessed a carriage and wagon works. Power to the machines was provided by a large steam engine via overhead shafting and belts. The 150-foot (46 m) chimney is still a local landmark. Whilst many carriages and wagons were built in the workshops, only two locomotives were actually constructed at Oswestry, though many were rebuilt there. After

12144-657: The major part of the British Isles archipelago and includes the island of Great Britain, the north-eastern one-sixth of the island of Ireland and some smaller surrounding islands. It lies between the North Atlantic Ocean and the North Sea with the southeast coast coming within 22 miles (35 km) of the coast of northern France, from which it is separated by the English Channel . The Royal Greenwich Observatory in London

12276-669: The mid-1920s, most of the British population could listen to BBC radio programmes. Experimental television broadcasts began in 1929 and the first scheduled BBC Television Service commenced in 1936. The rise of Irish nationalism , and disputes within Ireland over the terms of Irish Home Rule , led eventually to the partition of the island in 1921. A period of conflict in what is now Northern Ireland occurred from June 1920 until June 1922. The Irish Free State became independent, initially with Dominion status in 1922, and unambiguously independent in 1931 . Northern Ireland remained part of

12408-666: The national capitals of Scotland, Wales, and Northern Ireland, respectively. The lands of the UK have been inhabited continuously since the Neolithic . In AD 43 the Roman conquest of Britain began; the Roman departure was followed by Anglo-Saxon settlement . In 1066, the Normans conquered England . With the end of the Wars of the Roses the English state stabilised and began to grow in power, resulting by

12540-529: The new Cambrian Railways Company. The Aberystwith and Welsh Coast Railway was not included in the amalgamation because it was still under construction. In all, the new company had lines totalling 97 + 1 ⁄ 4 miles (157 km) in length. As well as incorporating existing railways, the new company had agreements to share traffic with the Mid-Wales Railway , the Manchester and Milford Railway and

12672-422: 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

12804-574: The northwest of England via the London and North Western Railway , and the Great Western Railway for connections between London and Wales. The Cambrian Railways amalgamated with the Great Western Railway on 1 January 1922 as a result of the Railways Act 1921 . The name is continued today in the route known as the Cambrian Line . The Cambrian Railways Company was created on 25 July 1864 when

12936-412: 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

13068-570: 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)

13200-628: 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

13332-409: 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

13464-430: 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

13596-472: 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

13728-507: The present day. Coaches 4, 251 and an unidentified saloon/brake car all stand in private residence. No. 9 is in private storage. No. 110 is being restored to service on the Swindon and Cricklade Railway . No. 238 and an unidentified six-wheel brake resides with the National Museums & Galleries of Wales . No. 247 is currently being used as the café at Chinnor station on

13860-572: 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

13992-400: 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

14124-497: The rest of Europe, royal absolutism would not prevail, and a professed Catholic could never accede to the throne. The British constitution would develop on the basis of constitutional monarchy and the parliamentary system . With the founding of the Royal Society in 1660, science was greatly encouraged. During this period, particularly in England, the development of naval power and the interest in voyages of discovery led to

14256-568: The result of the Acts of Union 1707 between the Kingdom of England and Kingdom of Scotland . In the 18th century, cabinet government developed under Robert Walpole , in practice the first prime minister (1721–1742). A series of Jacobite uprisings sought to remove the Protestant House of Hanover from the throne and restore the Catholic House of Stuart . The Jacobites were finally defeated at

14388-422: 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

14520-493: 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

14652-453: 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

14784-464: 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

14916-399: 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

15048-427: 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,

15180-460: 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

15312-417: 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

15444-506: 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),

15576-447: 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

15708-502: 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

15840-415: 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

15972-598: Was chosen as the defining point of the Prime Meridian at the International Meridian Conference in 1884. The United Kingdom lies between latitudes 49° and 61° N , and longitudes 9° W and 2° E . Northern Ireland shares a 224-mile (360 km) land boundary with the Republic of Ireland. The coastline of Great Britain is 11,073 miles (17,820 km) long, though measurements can vary greatly due to

16104-462: Was formed in 1931. Nonetheless, "Britain was a very wealthy country, formidable in arms, ruthless in pursuit of its interests and sitting at the heart of a global production system." After Nazi Germany invaded Poland in 1939, Britain entered the Second World War . Winston Churchill became prime minister and head of a coalition government in 1940. Despite the defeat of its European allies in

16236-508: 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

16368-545: Was in use for commercial purposes until 2004. After restoration in 2005, this building was reopened as the Cambrian Visitor Centre in June 2006; but on 11 January 2008 closed due to the terms of the lease not being settled. It has since reopened and, amongst other things, is as of 2009 being used as the headquarters for the newly formed Cambrian Heritage Railways (CHR) restoration project. The largest station premises on

16500-587: 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

16632-475: 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

16764-454: 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

16896-518: Was officially abolished on KTM's West Coast Line following the completion of the Ipoh - Padang Besar Electrified Double Track Project in 2014. Various railways use different names for the same things: United Kingdom The United Kingdom of Great Britain and Northern Ireland , commonly known as the United Kingdom ( UK ) or Britain , is a country in Northwestern Europe , off the coast of

17028-407: Was simply "Great Britain". The Acts of Union 1800 formed the United Kingdom of Great Britain and Ireland . Following the partition of Ireland and the independence of the Irish Free State in 1922, which left Northern Ireland as the only part of the island of Ireland within the United Kingdom, the name was changed in 1927 to the "United Kingdom of Great Britain and Northern Ireland". Although

17160-629: Was sold to the Brecon and Merthyr Railway ; the eastern section became part of the Mid-Wales Railway . In the following list the dates are: date of incorporation; opening date (The information in this section was taken largely from The Railway Year Book 1912 .) The Cambrian had connections with many independent lines, including: The headquarters of the Cambrian Railways was at Oswestry railway station in Shropshire. The building still stands today, although detached from modern network main railway lines, and

17292-432: Was the first country in the world to use an approved COVID-19 vaccine , developing its own vaccine through a collaboration between Oxford University and AstraZeneca , which allowed the UK's vaccine rollout to be among the fastest in the world. The total area of the United Kingdom is approximately 94,354 square miles (244,376 km ), with a land area of 93,723 square miles (242,741 km ). The country occupies

17424-512: 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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