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53-469: [REDACTED] Look up RHD in Wiktionary, the free dictionary. RHD may refer to: RHD (gene) , a gene which determines RhD positive or negative RhD haemolytic disease of the newborn Rh(D), an antigen within the rhesus blood group system FAP 403 RHD , a coach bus model manufactured by Fabrika automobila Priboj Rabbit haemorrhagic disease ,
106-518: A car's steering wheel is mounted on the right side, see Left- and right-hand traffic Robbery Homicide Division , an American TV series Random House Dictionary of the English language Roads and Highways Department , a government organization of Bangladesh Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title RHD . If an internal link led you here, you may wish to change
159-517: A change to RHT, but, a few years later, the government ordered it and it occurred on Sunday, 3 September 1967 at 5 am. The accident rate then dropped sharply, but soon rose to near its original level. The day was known as Högertrafikomläggningen, or Dagen H for short. When Iceland switched to RHT the following year, it was known as Hægri dagurinn or H-dagurinn ("The H-Day"). Most passenger cars in Iceland were already LHD. The United Kingdom
212-657: A clear view of other vehicles. The first keep-right law for driving in the United States was passed in 1792 and applied to the Philadelphia and Lancaster Turnpike . Massachusetts formalized RHT in 1821. However, the National Road was LHT until 1850, "long after the rest of the country had settled on the keep-right convention". Today the United States is RHT except the United States Virgin Islands , which
265-518: A coach bus model manufactured by Fabrika automobila Priboj Rabbit haemorrhagic disease , a disease caused by the rabbit haemorrhagic disease virus Red Hand Defenders , an illegal paramilitary organisation in Northern Ireland Rheumatic heart disease, a possible result of rheumatic fever Ribblehead railway station , North Yorkshire, England (National Rail station code) Right hemisphere brain damage Right-hand drive, where
318-531: A disease caused by the rabbit haemorrhagic disease virus Red Hand Defenders , an illegal paramilitary organisation in Northern Ireland Rheumatic heart disease, a possible result of rheumatic fever Ribblehead railway station , North Yorkshire, England (National Rail station code) Right hemisphere brain damage Right-hand drive, where a car's steering wheel is mounted on the right side, see Left- and right-hand traffic Robbery Homicide Division , an American TV series Random House Dictionary of
371-415: A newspaper said, "The cart was near to the right hand kerb. According to the rules of the road, it should have been on the left side. In turning sharp round a right-hand corner, a driver should keep away to the opposite side." That rule was codified when the first Highway Code was written in 1936. Samoa , a former German colony, had been RHT for more than a century, but switched to LHT in 2009, making it
424-409: A simple traffic light to do the switch, but there are also interchanges that enable the switch while keeping up a continuous flow of traffic. There are six road border crossing points between Hong Kong and mainland China. In 2006, the daily average number of vehicle trips recorded at Lok Ma Chau was 31,100. The next largest is Man Kam To , where there is no changeover system and the border roads on
477-634: A sixth of the world's land area, a quarter of its roads, and about a third of its population. In 1919, 104 of the world's territories were LHT and an equal number were RHT. Between 1919 and 1986, 34 of the LHT territories switched to RHT. While many of the countries using LHT were part of the British Empire , others such as Indonesia , Japan , Nepal , Bhutan , Macao , Thailand , Mozambique , Suriname , Sweden and Iceland (which use RHT since September 1967 and late May 1968 respectively) were not. Most of
530-466: A ten- shilling fine to anyone not driving or riding on the left side of the road within the county of the city of Dublin , and required the local road overseers to erect written or printed notices informing road users of the law. The Road in Down and Antrim Act 1798 (38 Geo. 3. c. 28 (I)) required drivers on the road from Dublin to Donadea to keep to the left. This time, the punishment was ten shillings if
583-592: Is LHT like many neighbouring islands. Some special-purpose vehicles in the United States, like certain postal service trucks, garbage trucks, and parking-enforcement vehicles, are built with the driver's seat on the right for safer and easier access to the curb. A common example is the Grumman LLV , which is used nationwide by the US Postal Service and by Canada Post . In Canada, the provinces of Quebec and Ontario were always RHT because they were created out of
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#1732847525903636-669: Is LHT, but two of its overseas territories , Gibraltar and the British Indian Ocean Territory , are RHT. In the late 1960s, the British Department for Transport considered switching to RHT, but declared it unsafe and too costly for such a built-up nation. Road building standards, for motorways in particular, allow asymmetrically designed road junctions, where merge and diverge lanes differ in length. Today, four countries in Europe continue to use LHT, all island nations:
689-436: Is different from Wikidata All article disambiguation pages All disambiguation pages RHD [REDACTED] Look up RHD in Wiktionary, the free dictionary. RHD may refer to: RHD (gene) , a gene which determines RhD positive or negative RhD haemolytic disease of the newborn Rh(D), an antigen within the rhesus blood group system FAP 403 RHD ,
742-434: Is still geared to LHT as its neighbours India, Bangladesh and Thailand use LHT. Most cars are used RHD vehicles imported from Japan. Afghanistan was LHT until the 1950s, in line with Pakistan (former part of British India). Although Portuguese Timor (present-day East Timor ), which shares the island of Timor with Indonesia , who is LHT, switched to RHT with Portugal in 1928, it switched back to LHT in 1976 during
795-426: Is the opposite: traffic keeps right, the driver usually sits on the left side of the car (LHD: left-hand drive), and roundabouts circulate anticlockwise. In most countries, rail traffic follows the handedness of the roads; but many of the countries that switched road traffic from LHT to RHT did not switch their trains. Boat traffic on bodies of water is RHT, regardless of location. Boats are traditionally piloted from
848-624: The British Virgin Islands , and the United States Virgin Islands are LHD due to their being imported from the United States. Brazil , a Portuguese colony until the early 19th century, had in the 19th and the early 20th century mixed rules, with some regions still on LHT, switching these remaining regions to RHT in 1928, the same year Portugal switched sides. Other Central and South American countries that later switched from LHT to RHT include Argentina, Chile, Panama, Paraguay, and Uruguay. Suriname , along with neighbouring Guyana , are
901-571: The Cape Colony (present-day South Africa and Lesotho ), as well as in British West Africa (present-day Ghana, Gambia, Sierra Leone and Nigeria); former British West Africa, however, has now switched to RHT, as all its neighbours, which are former French colonies, use RHT. South Africa, formerly the Cape Colony, introduced LHT in former German South West Africa , present-day Namibia , after
954-549: The French Revolution . Scholars who have looked for documentary evidence of this story have found none, and contemporary sources have not surfaced, as of 1999. In 1827, long after Napoleon's reign, Edward Planta wrote that, in Paris , "The coachmen have no established rule by which they drive on the right or left of the road, but they cross and jostle one another without ceremony." Rotterdam had no fixed rules until 1917, although
1007-843: The Indonesian occupation of East Timor . In the 1930s, parts of China such as the Shanghai International Settlement , Canton and Japanese-occupied northeast China used LHT. However, in 1946 the Republic of China made RHT mandatory in China (including Taiwan ). Taiwan was LHT under Japanese colonization from 1895–1945. Portuguese Macau (present-day Macau ) remained LHT, along with British Hong Kong , despite being transferred to China in 1999 and 1997 respectively. Both North Korea and South Korea use RHT since 1946, after liberation from Japanese colonialization . The Philippines
1060-551: The Maghreb , where it is still used. Countries in these areas include Mali , Mauritania , Ivory Coast , Burkina Faso , Benin , Niger , Morocco , Algeria , and Tunisia . Other French former colonies that are RHT include Cameroon , Central African Republic , Chad , Djibouti , Gabon , and the Republic of the Congo . Rwanda and Burundi are RHT but are considering switching to LHT (see "Potential future shifts" section below). In
1113-419: The starboard side (and not the port side like RHT road traffic vehicles) to facilitate priority to the right . Historically, many places kept left, while many others kept right, often within the same country. There are many myths that attempt to explain why one or the other is preferred. About 90 percent of people are right-handed , and many explanations reference this. Horses are traditionally mounted from
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#17328475259031166-526: The English language Roads and Highways Department , a government organization of Bangladesh Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title RHD . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=RHD&oldid=1204499938 " Category : Disambiguation pages Hidden categories: Short description
1219-535: The United Kingdom, Ireland (formerly part of the UK), Cyprus and Malta (both former British colonies). Many former British colonies in the region have always been LHT, including Australia, New Zealand, Fiji , Kiribati , Solomon Islands , Tonga , and Tuvalu ; and nations that were previously administered by Australia: Nauru and Papua New Guinea . Initially traffic was slow and very sparse, but, as early as 1856,
1272-593: The cities Milan , Turin , and Florence . In 1915, allied forces of World War I imposed LHT in areas of military operation, but this was revoked in 1918. Rome was reported by Goethe as LHT in the 1780s. Naples was also LHT although surrounding areas were often RHT. In cities, LHT was considered safer since pedestrians, accustomed to keeping right, could better see oncoming vehicular traffic. Finally, in 1923 Benito Mussolini decreed that all LHT areas would gradually transition to RHT. In spite of this, some Italian heavy commercial vehicles were right-hand drive until
1325-513: The countries that were part of the French colonial empire adopted RHT. Historical switches of traffic handedness have often been motivated by factors such as changes in political administration, a desire for uniformity within a country or with neighboring states, or availability and affordability of vehicles. In LHT, traffic keeps left and cars usually have the steering wheel on the right (RHD: right-hand drive) and roundabouts circulate clockwise. RHT
1378-419: The country. In a study of the ancient traffic system of Pompeii , Eric Poehler was able to show that drivers of carts drove in the middle of the road whenever possible. This was the case even on roads wide enough for two lanes. The wear marks on the kerbstones, however, prove that when there were two lanes of traffic, and the volume of traffic made it necessary to divide the lanes, the drivers always drove on
1431-621: The end of World War I . Sudan, formerly part of Anglo-Egyptian Sudan , switched to RHT in 1973. Most of its neighbours were RHT countries, with the exception of Uganda and Kenya, but since the independence of South Sudan in 2011, all of its neighbours drive on the right (including South Sudan, despite its land borders with two LHT countries). Although Portugal switched to RHT in 1928, its colony of Mozambique remained LHT because it has land borders with former British colonies (with LHT). France introduced RHT in French West Africa and
1484-554: The first territory in almost 30 years to change sides. The move was legislated in 2008 to allow Samoans to use cheaper vehicles imported from Australia, New Zealand, or Japan, and to harmonise with other South Pacific nations. A political party, The People's Party , was formed by the group People Against Switching Sides (PASS) to protest against the change, with PASS launching a legal challenge; in April 2008 an estimated 18,000 people attended demonstrations against switching. The motor industry
1537-553: The following were declared public holidays, to reduce traffic. The change included a three-day ban on alcohol sales, while police mounted dozens of checkpoints, warning drivers to drive slowly. Rwanda and Burundi , former Belgian colonies in Central Africa , are RHT but are considering switching to LHT like neighbouring members of the East African Community (EAC). A survey in 2009 found that 54% of Rwandans favoured
1590-561: The former Austrian Partition changed in the 1920s. Croatia-Slavonia switched on joining the Kingdom of Yugoslavia in 1918, although Istria and Dalmatia were already RHT. The switch in Czechoslovakia from LHT to RHT had been planned for 1939, but was accelerated by the start of the German occupation of Czechoslovakia that year. Similarly, Hungary switched in 1941. West Ukraine was LHT, but
1643-540: The former French colony of New France . The province of British Columbia changed to RHT in stages from 1920 to 1923, New Brunswick , Nova Scotia , and Prince Edward Island in 1922, 1923, and 1924 respectively, and the British colony of Newfoundland (part of Canada since 1949) in 1947, in order to allow traffic (without side switch) to or from the United States. In the West Indies , colonies and territories drive on
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1696-400: The late 18th century, right-hand traffic started to be introduced in the United States of America based on teamsters ' use of large freight wagons pulled by several pairs of horses and without a driver's seat; the (typically right-handed) postilion held his whip in his right hand and thus sat on the left rear horse, and therefore preferred other wagons passing on the left so that he would have
1749-523: The left, and led from the left, with the reins in the right hand. So people walking horses might use RHT, to keep the animals separated. Also referenced is the need for pedestrians to keep their swords in the right hand and pass on the left as in LHT, for self-defence. It has been suggested that wagon-drivers whipped their horses with their right hand, and thus sat on the left-hand side of the wagon, as in RHT. Academic Chris McManus notes that writers have stated that in
1802-439: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=RHD&oldid=1204499938 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Left- and right-hand traffic Left-hand traffic ( LHT ) and right-hand traffic ( RHT ) are
1855-470: The offender was not the owner of the vehicle, or one Irish pound (twenty shillings) if he/she was. The Grand Juries (Ireland) Act 1836 ( 6 & 7 Will. 4 c. 116) mandated LHT for the whole country, violators to be fined up to five shillings and imprisoned in default for up to one month. An oft-repeated story is that Napoleon changed the custom from LHT to RHT in France and the countries he conquered after
1908-559: The only two remaining LHT countries in South America . LHT was introduced by the U.K. in British India (now India , Pakistan , Myanmar , and Bangladesh ), British Malaya and British Borneo (now Malaysia , Brunei and Singapore), as well as British Hong Kong . These countries, except Myanmar, are still LHT, as well as neighbouring countries Bhutan and Nepal . Myanmar switched to RHT in 1970, although much of its infrastructure
1961-494: The other side". It was later legislated as the London Bridge Act 1756 ( 29 Geo. 2 c. 40), which required that "all carriages passing over the said bridge from London shall go on the east side thereof" – those going south to remain on the east, i.e. the left-hand side by direction of travel. This may represent the first statutory requirement for LHT. In the Kingdom of Ireland , a law of 1793 (33 Geo. 3. c. 56 (I)) provided
2014-440: The practices, in bidirectional traffic , of keeping to the left side and to the right side of the road, respectively. They are fundamental to traffic flow , and are sometimes called the rule of the road . The terms right- and left-hand drive refer to the position of the driver and the steering wheel in the vehicle and are, in automobiles, the reverse of the terms right- and left-hand traffic . The rule also includes where on
2067-578: The rest of Ukraine, having been part of the Russian Empire, was RHT. In Italy, it had been decreed in 1901 that each province define its own traffic code , including the handedness of traffic, and the 1903 Baedeker guide reported that the rule of the road varied by region. For example, in Northern Italy , the provinces of Brescia , Como , Vicenza , and Ravenna were RHT while nearby provinces of Lecco , Verona , and Varese were LHT, as were
2120-741: The rest of the Netherlands was RHT. In May 1917 the police in Rotterdam ended traffic chaos by enforcing right hand traffic. In Russia, in 1709, the Danish envoy under Tsar Peter the Great noted the widespread custom for traffic in Russia to pass on the right, but it was only in 1752 that Empress Elizabeth officially issued an edict for traffic to keep to the right. After the Austro-Hungarian Empire broke up,
2173-578: The resulting countries gradually changed to RHT. In Austria , Vorarlberg switched in 1921, North Tyrol in 1930, Carinthia and East Tyrol in 1935, and the rest of the country in 1938. In Romania , Transylvania , the Banat and Bukovina were LHT until 1919, while Wallachia and Moldavia were already RHT. Partitions of Poland belonging to the German Empire and the Russian Empire were RHT, while
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2226-565: The right-hand side. These considerations can also be demonstrated in the archaeological findings of other cities in the Roman Empire . One of the first references in England to requiring traffic direction was an order by the London Court of Aldermen in 1669, requiring a man to be posted on London Bridge to ensure that "all cartes going to keep on the one side and all cartes coming to keep on
2279-547: The road a vehicle is to be driven, if there is room for more than one vehicle in the one direction, and the side on which the vehicle in the rear overtakes the one in the front. For example, a driver in an LHT country would typically overtake on the right of the vehicle being overtaken. RHT is used in 165 countries and territories, mainly in the Americas , Continental Europe , most of Africa and mainland Asia (except South Asia ), while 75 countries use LHT, which account for about
2332-565: The same side as their parent countries, except for the United States Virgin Islands . Many of the island nations are former British colonies and drive on the left, including Jamaica , Antigua and Barbuda , Barbados , Dominica , Grenada , Saint Kitts and Nevis , Saint Lucia , Saint Vincent and the Grenadines , Trinidad and Tobago , and The Bahamas . However, most vehicles in The Bahamas, Cayman Islands , Turks and Caicos Islands and both
2385-459: The switch. Reasons cited were the perceived lower costs of RHD vehicles, easier maintenance and the political benefit of harmonising traffic regulations with other EAC countries. The survey indicated that RHD cars were 16% to 49% cheaper than their LHD counterparts. In 2014, an internal report by consultants to the Ministry of Infrastructure recommended a switch to LHT. In 2015, the ban on RHD vehicles
2438-759: The traffic code was changed in 1959. Portugal switched to RHT in 1928. Finland , formerly part of LHT Sweden, switched to RHT in 1858 as the Grand Duchy of Finland by Russian decree. Spain switched to RHT in 1918, but not in the entire country. In Madrid people continued to drive on the left until 1924 when a national law forced drivers in Madrid switch to RHT. Madrid Metro still uses LHT. Sweden switched to RHT in 1967, having been LHT from about 1734 despite having land borders with RHT countries Norway and Finland, and approximately 90% of cars being left-hand drive (LHD). A referendum in 1955 overwhelmingly rejected
2491-564: The year 1300, Pope Boniface VIII directed pilgrims to keep left; however, others suggest that he directed them to keep to the right, and there is no documented evidence to back either claim. The UK introduced LHT in the East Africa Protectorate (present-day Kenya ), the Protectorate of Uganda , Tanganyika (formerly part of German East Africa ; present-day Tanzania ), Rhodesia (present-day Zambia / Zimbabwe ), Eswatini and
2544-399: The year Japan's first railway was introduced, built with technical aid from the British – that this unwritten rule received official acknowledgment. Gradually, a massive network of railways and tram tracks was built, with all railway vehicles driven on the left-hand side. However, it took another half-century, until 1924, until left-hand traffic was legally mandated. Post- World War II Okinawa
2597-523: Was also opposed, as 14,000 of Samoa's 18,000 vehicles were designed for RHT and the government refused to meet the cost of conversion. After months of preparation, the switch from right to left happened in an atmosphere of national celebration. There were no reported incidents. At 05:50 local time, Monday 7 September, a radio announcement halted traffic, and an announcement at 6:00 ordered traffic to switch to LHT. The change coincided with more restrictive enforcement of speeding and seat-belt laws. That day and
2650-563: Was formalized, RHD vehicles such as public buses were still imported into the Philippines until a law passed banning the importation of RHD vehicles except in special cases. These RHD vehicles are required to be converted to LHD. Japan was never part of the British Empire, but its traffic also drives on the left. Although this practice goes back to the Edo period (1603–1868), it was not until 1872 –
2703-580: Was lifted; RHD trucks from neighbouring countries cost $ 1,000 less than LHD models imported from Europe. Although many LHT jurisdictions are on islands, there are cases where vehicles may be driven from LHT across a border into a RHT area. Such borders are mostly located in Africa and southern Asia. The Vienna Convention on Road Traffic regulates the use of foreign registered vehicles in the 78 countries that have ratified it. LHT Thailand has three RHT neighbours: Cambodia, Laos, and Myanmar. Most of its borders use
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#17328475259032756-641: Was mostly LHT during its Spanish and American colonial periods, as well as during the Commonwealth era . During the Japanese occupation , the Philippines remained LHT, as was required by the Japanese; but during the Battle of Manila , the liberating American forces drove their tanks to the right for easier facilitation of movement. RHT was formalized in 1945 through a decree by president Sergio Osmeña . Even though RHT
2809-928: Was ruled by the United States Civil Administration of the Ryukyu Islands until 1972, and was RHT until 6 a.m. the morning of 30 July 1978, when it switched back to LHT . The conversion operation was known as 730 ( Nana-San-Maru , which refers to the date of the changeover). Okinawa is one of only a few places to have changed from RHT to LHT in the late 20th century. While Japan drives on the left and most Japanese vehicles are RHD, imported vehicles (e.g. BMW, Mercedes-Benz, Porsche) are generally bought as LHD since LHD cars are considered to be status symbols. Vietnam became RHT as part of French Indochina , as did Laos and Cambodia . In Cambodia, RHD cars, many of which were smuggled from Thailand, were banned in 2001, even though they accounted for 80% of vehicles in
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