Driving Side by Country: Left-Hand (LHT) vs. Right-Hand Traffic (RHT)
Determining whether traffic flows on the left (73 jurisdictions, ~31%) or the right (168 jurisdictions, ~69%) is the fastest binary filter in street photo geolocation. Even in empty streets, parked car orientation, highway exit slip-lanes, and signpost facing angles reveal the traffic handedness immediately.
| Country / Territory | Driving Side | Historical Switch Date | Vehicle Steering & Regional Border Exceptions |
|---|---|---|---|
| Afghanistan | Right (RHT) | 1955 | Kabul adopted RHT in 1955. |
| Alaska | Right (RHT) | Original Standard | part of United States |
| Albania | Right (RHT) | 1926 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Algeria | Right (RHT) | 1900 | Part of France until 1962. |
| American Samoa | Right (RHT) | Original Standard | part of United States |
| Andorra | Right (RHT) | 1724 | Landlocked between France and Spain. |
| Angola | Right (RHT) | 1928 | Portuguese colony until 1975. |
| Anguilla | Left (LHT) | Original Standard | British territory |
| Antigua and Barbuda | Left (LHT) | Original Standard | These Caribbean islands were a British colony until 1958. |
| Argentina | Right (RHT) | 10 June 1945 | The anniversary on 10 June is still observed each year as Día de la Seguridad Vial (road safety day). |
| Armenia | Right (RHT) | 1923 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Aruba | Right (RHT) | Original Standard | Netherlands |
| Australia | Left (LHT) | Original Standard | British colonies before 1901. Includes Australian external territories. |
| Austria | Right (RHT) | 1921–38 | Originally LHT, like most of Austria-Hungary, but switched sides after the annexation of Austria by Nazi Germany. |
| Azerbaijan | Right (RHT) | 1966 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Azores | Right (RHT) | Original Standard | Portugal |
| Bahamas | Left (LHT) | Original Standard | British colony before 1973. Caribbean island. Most passenger vehicles are LHD due to them being imported from the United States. |
| Bahrain | Right (RHT) | November 1967 | Former British protectorate. Switched to the same side as its neighbours. An island nation, linked by road to the Arabian mainland since 1986. |
| Bangladesh | Left (LHT) | Original Standard | Part of Pakistan before 1971, which was part of British India before 1947. |
| Barbados | Left (LHT) | Original Standard | This Atlantic island state was a British colony before 1966. |
| Belarus | Right (RHT) | 1966 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Belgium | Right (RHT) | 1899 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Belize | Right (RHT) | 1961 | British colony before 1981. Switched to same side as neighbours. |
| Benin | Right (RHT) | 2022 | Part of French West Africa before 1960. |
| Bermuda | Left (LHT) | Original Standard | part of United Kingdom; Some commercial vehicles are LHD due to imports from the United States, which has RHT. |
| Bhutan | Left (LHT) | Original Standard | Under British protection before 1949. |
| Bolivia | Right (RHT) | Original Standard | Yungas Road is LHT. |
| Bosnia and Herzegovina | Right (RHT) | 1918 | Switched sides after the collapse of Austria-Hungary. |
| Botswana | Left (LHT) | Original Standard | British colony before 1966. |
| Brazil | Right (RHT) | 1928 | Portuguese colony before 1822. |
| British Indian Ocean Territory | Right (RHT) | Original Standard | part of United Kingdom; The largest island, Diego Garcia, was leased to the United States Navy as a military base; the United States is RHT. |
| British Virgin Islands | Left (LHT) | Original Standard | part of United Kingdom; Most passenger vehicles are LHD due to imports from the United States, which is RHT. |
| Brunei | Left (LHT) | Original Standard | British protection until 1984. |
| Bulgaria | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Burkina Faso | Right (RHT) | Original Standard | Part of French West Africa before 1958. |
| Burundi | Right (RHT) | Original Standard | Belgian colony before 1962. Considering switching to LHT. |
| Cambodia | Right (RHT) | Original Standard | French protectorate before 1953. |
| Cameroon | Right (RHT) | 1961 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Canada | Right (RHT) | Original Standard | British Columbia: Interior changed 15 July 1920, Vancouver and the coastal area 1 January 1922; Newfoundland and Labrador: Was a British Dominion until 1949. |
| Canary Islands | Right (RHT) | Original Standard | Spain |
| Cape Verde | Right (RHT) | 1928 | Portuguese colony before 1975. |
| Cayman Islands | Left (LHT) | Original Standard | part of United Kingdom; Most passenger vehicles are LHD due to imports from the United States, which has RHT. |
| Central African Republic | Right (RHT) | Original Standard | French colonies before 1960. |
| Chad | Right (RHT) | Original Standard | French colonies before 1960. |
| Chile | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| China | Right (RHT) | 1946 | Parts of China were LHT in the 1930s. |
| Colombia | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Comoros | Right (RHT) | Original Standard | French colony before 1975. |
| Congo | Right (RHT) | Original Standard | French colony before 1960. |
| Cook Islands | Left (LHT) | Original Standard | New Zealand associated state |
| Costa Rica | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Croatia | Right (RHT) | 1926 | Was then part of the Kingdom of Serbs, Croats and Slovenes. |
| Cuba | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Curaçao | Right (RHT) | Original Standard | Netherlands |
| Cyprus | Left (LHT) | Original Standard | Under UK administration before 1960. Island nation. De facto divided between the Republic of Cyprus, the Turkish Republic of Northern Cyprus, the UN buffer zone and the British base areas of Akrotiri and Dhekelia. All are LHT. |
| Czech Republic | Right (RHT) | 1939 | Switched during the German occupation of Czechoslovakia. |
| Denmark | Right (RHT) | 1793 | Includes the Faroe Islands and Greenland. Danish West Indies were LHT, and continue to be LHT as United States Virgin Islands after US purchase in 1917. |
| Djibouti | Right (RHT) | Original Standard | French colony before 1977. |
| Dominica | Left (LHT) | Original Standard | British colony before 1978. Caribbean island. |
| Dominican Republic | Right (RHT) | Original Standard | Under Spanish control until 1821 and again from 1861 to 1865. |
| DR Congo | Right (RHT) | Original Standard | Belgian colony before 1960. RHD vehicles are common, especially in the southeast. |
| Ecuador | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Egypt | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| El Salvador | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Equatorial Guinea | Right (RHT) | Original Standard | Spanish colony before 1968. |
| Eritrea | Right (RHT) | 8 June 1964 | Italian colony before 1942. |
| Estonia | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Eswatini | Left (LHT) | Original Standard | British protectorate until 1968. Continues to drive on the same side as neighbouring countries. |
| Ethiopia | Right (RHT) | 8 June 1964 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Falkland Islands | Left (LHT) | Original Standard | part of United Kingdom; Briefly switched to RHT during the Falklands War. |
| Faroe Islands | Right (RHT) | Original Standard | Denmark |
| Federated States of Micronesia | Right (RHT) | Original Standard | Was under American control until 1979. |
| Fiji | Left (LHT) | Original Standard | The island nation was a British colony before 1970. |
| Finland | Right (RHT) | 8 June 1858 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| France | Right (RHT) | 1792 | Includes French Polynesia, New Caledonia, Saint Pierre and Miquelon, Wallis and Futuna, French Guiana, Réunion, Saint Barthélemy, the Collectivity of Saint Martin, Guadeloupe, and Mayotte. |
| French Guiana | Right (RHT) | Original Standard | French overseas department |
| French Polynesia | Right (RHT) | Original Standard | French territory |
| Gabon | Right (RHT) | Original Standard | French colony before 1960. |
| Gambia | Right (RHT) | 1 October 1965 | British colony until 1965. Switched to RHT on 1 October 1965 being surrounded by the former French colony of Senegal. |
| Georgia | Right (RHT) | Original Standard | The bus line on Ilia Chavchavadze Avenue runs on the left. |
| Germany | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Ghana | Right (RHT) | 4 August 1974 | British colony until 1957. Ghana switched to RHT in 1974, a Twi language slogan was "Nifa, Nifa Enan" or "Right, Right, Fourth". Ghana has also banned RHD vehicles – it prohibited new registrations of RHD vehicles after 1 August 1974, three days before the traffic change. |
| Gibraltar | Right (RHT) | 1929 | Gibraltar is RHT because of its land border with Spain. |
| Greece | Right (RHT) | 1926 | Originally LHT (albeit unofficially) since independence. The establishment of the traffic code switched traffic officially to RHT traffic in 1926. |
| Greenland | Right (RHT) | Original Standard | Denmark |
| Grenada | Left (LHT) | Original Standard | British colony before 1974. Caribbean island. |
| Guadeloupe | Right (RHT) | Original Standard | French overseas department |
| Guam | Right (RHT) | Original Standard | part of United States |
| Guatemala | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Guernsey | Left (LHT) | Original Standard | part of United Kingdom; Was RHT from 1940 to 1945 due to the German occupation. |
| Guinea | Right (RHT) | Original Standard | Part of French West Africa before 1958. |
| Guinea-Bissau | Right (RHT) | 1928 | Portuguese colony until 1974. Drives on the same side as its neighbours. |
| Guyana | Left (LHT) | Original Standard | British colony until 1966. One of the only two countries in continental America which are in LHT, the other being Suriname. |
| Haiti | Right (RHT) | Original Standard | French colony until 1804. |
| Hawaii | Right (RHT) | Original Standard | part of United States |
| Honduras | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Hong Kong | Left (LHT) | Original Standard | part of China; Hong Kong was a British colony from 1841 to 1941 and from 1945 to 1997, when the dependent territory was transferred to China. |
| Hungary | Right (RHT) | 1941 | Originally LHT, like most of Austria-Hungary, but switched sides during World War II. |
| Iceland | Right (RHT) | 26 May 1968 | This Atlantic island nation changed to RHT on H-dagurinn. Most passenger cars were already LHD. |
| India | Left (LHT) | Original Standard | Part of British India before 1947. |
| Indonesia | Left (LHT) | Original Standard | Roads and railways were built by the Dutch, with LHT for roads to conform to British and Japanese standards and RHT for railways to conform with Dutch standards. Urban railways also use RHT. Did not change sides, unlike the Netherlands, in 1906. |
| Iran | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Iraq | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Ireland | Left (LHT) | Original Standard | What is now the Republic of Ireland was part of the United Kingdom before 1922. The Republic covers most of the island of Ireland; the rest of Ireland is part of Northern Ireland, which remains part of the United Kingdom, which is also LHT. |
| Isle of Man | Left (LHT) | Original Standard | part of United Kingdom |
| Israel | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Italy | Right (RHT) | 1924–26 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Ivory Coast | Right (RHT) | Original Standard | Part of French West Africa before 1960. |
| Jamaica | Left (LHT) | Original Standard | British colony before 1962. Caribbean island. Most passenger vehicles are RHD, tractor-trailers and other heavy-duty trucks are mostly LHD due to being imported from the United States. |
| Japan | Left (LHT) | Original Standard | LHT was enacted in law in 1924. One of the few non-British-colony countries to use LHT. Okinawa Prefecture was RHT from 24 June 1945 to 30 July 1978 because of American rule. |
| Jersey | Left (LHT) | Original Standard | part of United Kingdom; Was RHT from 1940 to 1945 due to the German occupation. |
| Jordan | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Kazakhstan | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Kenya | Left (LHT) | Original Standard | Part of the British East Africa Protectorate before 1963. |
| Kiribati | Left (LHT) | Original Standard | This Pacific island nation was a British colony before 1979. |
| Kosovo | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Kuwait | Right (RHT) | Original Standard | British Protectorate until 1961. |
| Kyrgyzstan | Right (RHT) | Original Standard | In 2012, over 20,000 cheap used RHD cars were imported from Japan. |
| Laos | Right (RHT) | Original Standard | French protectorate until 1953. The First Thai–Lao Friendship Bridge is LHT in connection to Thailand. |
| Latvia | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Lebanon | Right (RHT) | Original Standard | French Mandate of Lebanon before 1946. |
| Lesotho | Left (LHT) | Original Standard | British protectorate from 1885 to 1966. Enclave of LHT South Africa. |
| Liberia | Right (RHT) | Original Standard | Was under American control. |
| Libya | Right (RHT) | Original Standard | Italian colony from 1911 to 1947. |
| Liechtenstein | Right (RHT) | Original Standard | Landlocked between Switzerland and Austria. |
| Lithuania | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Luxembourg | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Macau | Left (LHT) | Original Standard | part of China; Macau was under Portuguese rule until 1999, when the dependent territory was transferred to China. |
| Madagascar | Right (RHT) | Original Standard | This island nation was a French colony until 1958. |
| Madeira | Right (RHT) | Original Standard | Portugal |
| Malawi | Left (LHT) | Original Standard | British colony before 1964. |
| Malaysia | Left (LHT) | Original Standard | British colony before 1957. |
| Maldives | Left (LHT) | Original Standard | This island nation was a British colony before 1965. |
| Mali | Right (RHT) | Original Standard | Part of French West Africa before 1960. |
| Malta | Left (LHT) | Original Standard | British colony before 1964. Island nation. |
| Marshall Islands | Right (RHT) | Original Standard | Was under American control until 1979. |
| Martinique | Right (RHT) | Original Standard | French overseas department |
| Mauritania | Right (RHT) | Original Standard | Part of French West Africa before 1960. Mining roads between Fderîck and Zouérat are LHT. |
| Mauritius | Left (LHT) | Original Standard | This island nation was a British colony before 1968. |
| Mayotte | Right (RHT) | Original Standard | French overseas department |
| Mexico | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Moldova | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Monaco | Right (RHT) | Original Standard | Was under French control. |
| Mongolia | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Montenegro | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Montserrat | Left (LHT) | Original Standard | British territory |
| Morocco | Right (RHT) | Original Standard | Under French and Spanish protection until 1956. |
| Mozambique | Left (LHT) | Original Standard | Portuguese colony until 1975. Drives on the same side as its neighbours. |
| Myanmar | Right (RHT) | 6 December 1970 | British colony until 1948. Switched to RHT under the orders of Ne Win. Theories emerge on the reasoning behind this switch; one claimed that he met an astrologer that recommended him to switch the country's traffic to the right in order to make the nation prosper, while another claimed that international visits caused him to notice that most countries are RHT and so decided to convert the country's handedness of traffic in order to connect Myanmar's roads with other countries' roads in the future. |
| Namibia | Left (LHT) | 1920 | When South Africa occupied German South West Africa in World War I, it switched to LHT. South West Africa was administered by South Africa 1920–1990. |
| Nauru | Left (LHT) | 1918 | This island nation was administered by Australia until 1968. |
| Nepal | Left (LHT) | Original Standard | Shares open land border with LHT India. |
| Netherlands | Right (RHT) | 1 January 1906 | Includes Aruba, Curaçao, and Sint Maarten. |
| New Caledonia | Right (RHT) | Original Standard | French territory |
| New Zealand | Left (LHT) | Original Standard | These Pacific islands, including territories Niue and Cook Islands, were former British colonies. |
| Nicaragua | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Niger | Right (RHT) | Original Standard | Part of French West Africa before 1958. |
| Nigeria | Right (RHT) | 2 April 1972 | British colony until 1960. Under the military government, it switched to RHT due to being surrounded by RHT former French colonies. |
| Niue | Left (LHT) | Original Standard | New Zealand associated state |
| North Korea | Right (RHT) | 1946 | Was LHT during the period of Japanese rule. Switched to RHT after the Surrender of Japan. |
| North Macedonia | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Northern Mariana Islands | Right (RHT) | Original Standard | part of United States |
| Norway | Right (RHT) | 1793 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Oman | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Pakistan | Left (LHT) | Original Standard | Part of British India before 1947. |
| Palau | Right (RHT) | Original Standard | Palau was under American control until 1986. Most passenger vehicles are RHD due to them being imported from Australia and Japan. |
| Palestine | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Panama | Right (RHT) | 1943 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Papua New Guinea | Left (LHT) | Original Standard | After Australia occupied German New Guinea during World War I, it switched to LHT. |
| Paraguay | Right (RHT) | 25 January 1945 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Peru | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Philippines | Right (RHT) | 1946 | Was LHT during the Spanish and American colonial periods. Switched to RHT after the Battle of Manila in 1945. RHD vehicles such as imported buses were still used up until the late 1980s. Philippine National Railways switched to RHT in 2010. Nowadays RHD vehicles are illegal to register and operate for ordinary use under Republic Act 8506 of 1998 however RHD vintage vehicles made before 1960 in "showroom" condition or off-road specialized vehicles are allowed to be used only for motorsports events. |
| Pitcairn Islands | Left (LHT) | Original Standard | part of United Kingdom; There is no official vehicle registration system. |
| Poland | Right (RHT) | Original Standard | South-eastern Poland (former Austrian Partition) was LHT until the 1920s. |
| Portugal | Right (RHT) | 1928 | Colonies Goa, Macau and Mozambique, which had land borders with LHT countries, did not switch and continue to drive on the left. The Porto Metro uses RHT. |
| Puerto Rico | Right (RHT) | Original Standard | part of United States |
| Qatar | Right (RHT) | Original Standard | Former British protectorate. Switched to same side as neighbours. |
| Réunion | Right (RHT) | Original Standard | French overseas department |
| Romania | Right (RHT) | 1919 | Regions of Romania (Transylvania, Bukovina, parts of the Banat, Crișana and Maramureș) that were part of Austria-Hungary were LHT until 1919. |
| Russia | Right (RHT) | Original Standard | In the Russian Far East, RHD vehicles are common due to the import of used cars from nearby Japan. The railway between Moscow and Ryazan, the Sormovskaya line in Nizhny Novgorod Metro and the Moskva River cable car use LHT. |
| Rwanda | Right (RHT) | Original Standard | Belgian colony before 1962. Considering switching to LHT. |
| Saint Helena | Left (LHT) | Original Standard | British territory |
| Saint Kitts and Nevis | Left (LHT) | Original Standard | This Caribbean island nation was a British colony before 1983. |
| Saint Lucia | Left (LHT) | Original Standard | This Caribbean island nation was a British colony before 1979. |
| Saint Vincent and the Grenadines | Left (LHT) | Original Standard | This Caribbean island nation was a British colony before 1979. |
| Samoa | Left (LHT) | 7 September 2009 | Despite New Zealand occupying German Samoa during the first World War, the country did not switch to LHT until 2009; this was for economic reasons, to allow cheaper importation of cars from Australia, New Zealand and Japan. |
| San Marino | Right (RHT) | Original Standard | Enclaved state surrounded by Italy. |
| São Tomé and Príncipe | Right (RHT) | 1928 | Portuguese colony until 1975. |
| Saudi Arabia | Right (RHT) | 1942 | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Senegal | Right (RHT) | Original Standard | Part of French West Africa before 1960. |
| Serbia | Right (RHT) | 1926 | (As part of Kingdom of Serbs, Croats and Slovenes). Vojvodina was LHT while part of Austria-Hungary. |
| Seychelles | Left (LHT) | Original Standard | This island nation was a British colony until 1976. |
| Sierra Leone | Right (RHT) | 1 March 1971 | British colony until 1961. Switched to RHT being surrounded by neighbouring former French colonies. Furthermore, it banned the importation of RHD vehicles in 2013. |
| Singapore | Left (LHT) | Original Standard | This island nation was a British colony until 1963. It was also part of Malaysia until 1965. |
| Sint Maarten | Right (RHT) | Original Standard | Netherlands |
| Slovakia | Right (RHT) | 1939–41 | Switched during the German occupation of Czechoslovakia. |
| Slovenia | Right (RHT) | 1926 | (As part of Kingdom of Serbs, Croats and Slovenes.) Officially LHT from 1915 as part of Austria-Hungary. |
| Solomon Islands | Left (LHT) | Original Standard | This island nation was a British protectorate before 1975. |
| Somalia | Right (RHT) | Original Standard | The former British Somaliland had LHT until it formed a union with the former Italian Somaliland which had RHT. |
| South Africa | Left (LHT) | Original Standard | British colony before 1910. |
| South Georgia and the South Sandwich Islands | Left (LHT) | Original Standard | part of United Kingdom; Briefly switched to RHT during the Falklands War. |
| South Korea | Right (RHT) | 1946 | Was LHT during the period of Japanese rule. Switched to RHT after the USAMGIK Ordinance 65 came into effect. |
| South Sudan | Right (RHT) | 1973 | Part of Sudan until 2011. |
| Spain | Right (RHT) | 1924 | Up to the 1920s Barcelona was RHT, and Madrid was LHT until 1924. The Madrid Metro still uses LHT. |
| Sri Lanka | Left (LHT) | Original Standard | British Ceylon from 1815 to 1948. |
| Sudan | Right (RHT) | 1973 | Formerly Anglo-Egyptian Sudan, it switched sides 17 years later to match neighbours. |
| Suriname | Left (LHT) | 1920s | Dutch colony until 1975. One of the only two countries in continental America which are in LHT, the other being Guyana. Did not switch sides, unlike the Netherlands itself. |
| Svalbard | Right (RHT) | Original Standard | Norway |
| Sweden | Right (RHT) | 3 September 1967 | The day of the switch was known as Dagen H. Most passenger vehicles were already LHD. Railways and the Stockholm Metro did not switch and continue to drive on the left. |
| Switzerland | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Syria | Right (RHT) | Original Standard | Was under French control. |
| Taiwan | Right (RHT) | 1946 | Was LHT during the period of Japanese rule. The Republic of China (1912–1949) changed Taiwan to RHT in 1946 along with the rest of China. |
| Tajikistan | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Tanzania | Left (LHT) | Original Standard | Was British colony until 1961. |
| Thailand | Left (LHT) | Original Standard | One of the few non-British-colony LHT countries. Shares a long land border with RHT Myanmar, Laos and Cambodia. |
| Timor-Leste | Left (LHT) | 19 July 1976 | Portuguese colony until 1975. Switched to RHT with Portugal in 1928; following its annexation by Indonesia in 1976, it switched back to LHT, which it has retained since independence. |
| Togo | Right (RHT) | Original Standard | Part of French West Africa until 1960. |
| Tokelau | Left (LHT) | Original Standard | New Zealand territory |
| Tonga | Left (LHT) | Original Standard | British protectorate before 1970. Polynesian island nation. |
| Trinidad and Tobago | Left (LHT) | Original Standard | British colony before 1962. Caribbean nation. |
| Tunisia | Right (RHT) | Original Standard | RHT was enforced in the French protectorate of Tunisia from 1881 to 1956. |
| Turkey | Right (RHT) | Original Standard | Except Metrobus, which is usually LHT. |
| Turkmenistan | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Turks and Caicos Islands | Left (LHT) | Original Standard | part of United Kingdom; Most passenger vehicles are LHD due to imports from the United States, which has RHT. |
| Tuvalu | Left (LHT) | Original Standard | Formerly a British colony. Became independent in 1978. |
| U.S. Virgin Islands | Left (LHT) | Original Standard | part of United States; U.S. Virgin Islands, like much of the Caribbean, is LHT and is the only American jurisdiction that still has LHT, because the islands drove on the left when the US purchased the former Danish West Indies in the 1917 Treaty of the Danish West Indies. Most passenger vehicles are LHD due to them being imported from the American mainland. |
| Uganda | Left (LHT) | Original Standard | Part of British Uganda Protectorate from 1894 until 1962. |
| Ukraine | Right (RHT) | 1922 | Western parts of the country had LHT under Austro-Hungarian Empire |
| United Arab Emirates | Right (RHT) | 1 September 1966 | Former British protectorate. |
| United Kingdom | Left (LHT) | Original Standard | An island nation with a land border with the Republic of Ireland, which is also LHT. Also LHT are the British Overseas Territories of Anguilla, Ascension Island, Montserrat, Saint Helena, and Tristan da Cunha. The Heathrow airport PRT uses RHT. |
| United States | Right (RHT) | Original Standard | British colonies before 1776 (de facto) or 1783 (de jure) |
| Uruguay | Right (RHT) | 2 September 1945 | Became LHT in 1918, but as in some other countries in South America, changed to RHT in 1945. A speed limit of 30 km/h (19 mph) was observed until 30 September for safety. |
| Uzbekistan | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Vanuatu | Right (RHT) | Original Standard | Co-administered under France and the United Kingdom until 1980. |
| Vatican City | Right (RHT) | Original Standard | Enclave of Rome. |
| Venezuela | Right (RHT) | Original Standard | Right-hand traffic (RHT); standard left-hand steering wheel. |
| Vietnam | Right (RHT) | Original Standard | French colony until 1954. The Long Bien Bridge uses LHT. |
| Western Sahara | Right (RHT) | Original Standard | Spanish colony until 1976. |
| Yemen | Right (RHT) | 1977 | South Yemen, formerly the British colony of Aden, changed to RHT in 1977, having become one of a few communist countries to use LHT. A series of postage stamps commemorating the event was issued. At that time, North Yemen was already RHT. |
| Zambia | Left (LHT) | Original Standard | British colony before 1964. |
| Zimbabwe | Left (LHT) | Original Standard | British colony before 1965 (de facto) or 1980 (de jure). |