Trolleybuses are a type of electrically-powered bus that receives its energy from cables that run overhead and are supported by spring-loaded poles. While they offer advantages over other forms of mass transit, trolleybuses are largely obsolete in developed countries, where they primarily serve as tourist attractions. However, trolleybuses still provide significant passenger transportation in a few countries.
The world's first trolleybus system was built in Germany in 1882, where it quickly became a popular form of transportation. They remained common in many countries during the early 20th century, until private motor vehicles became readily affordable to the general public. Since then, the use of trolleybus systems has been declining, with 276 active systems remaining in the world as of 2021. In total, over 800 trolleybus systems have existed, although not all at the same time.
Trolleybuses offer several advantages over other methods of passenger transport. For example, the infrastructure is easier to build and maintain than tram networks. In addition, trolleybuses generally climb hills more efficiently, avoid traffic more easily and are quieter. They're also more environmentally friendly than buses, are easier to maintain and typically last longer.
Trolleybuses require the driver to exert much more directional control than trams, creating a greater potential for collisions. The need for overhead cables also prevents trolleybuses from deviating from their prescribed routes the way buses can. This limitation is particularly disruptive when a trolleybus encounters a vehicle accident or road construction. For the same reason, trolleybuses can't overtake each other.
In addition, the cables can prevent tall motor vehicles like tractor-trailers and double-decker buses from using the same route as trolleybuses. Furthermore, inhabitants of areas with trolleybuses often consider cables to be unattractive.
The following list shows the countries with at least 10 trolleybus systems as of 2021:
Trolleybus systems are highly concentrated in Eastern Europe and Asia. Russia has the most by far at 79, with neighboring Ukraine a distant second at 41. Ukraine also has the world's longest system in terms of route length, which is based in Kyiv. In addition, China and North Korea have a significant network of trolleybus networks. Outside Eastern Europe and Asia, Italy and Switzerland are the only other countries with more than five trolleybus systems.
Country | Trolleybus Usage Status | Trolleybus Usage Cities |
---|---|---|
Argentina | Operational (In various cities including Mendoza, Rosario, Córdoba) | Bahía Blanca, | Buenos Aires, | Córdoba, | La Plata, | Mar del Plata, | Mendoza, | Tucumán, | Rosario |
Armenia | Operational since 1949, six routes run in Yerevan | Yerevan |
Austria | Salzburg has the largest system; Innsbruck's system closed in 2007 due to the expected light rail expansion. | Innsbruck, | Kapfenberg, | Linz, | Salzburg |
Azerbaijan | Systems existed in five cities, all closed in the 2000s | Baku, | Ganja, | Mingachevir, | Nakhchivan, | Sumqayit |
Belarus | Minsk has the world's largest trolleybus system. Other cities also have operational systems. | Babruysk, | Brest, | Gomel, | Grodno, | Minsk, | Mogilev, | Vitebsk |
Belgium | Trolleybuses operated in the past in Antwerp, Brussels, Liège, and Ghent. Ghent's system closed in 2009. | No operational systems |
Bosnia and Herzegovina | Trolleybuses operate only in Sarajevo with seven routes (101–107). | Sarajevo |
Brazil | Operational (Separate systems in São Paulo and Santos) | Santos, | São Paulo |
Bulgaria | Various cities have operational systems; Pleven has the most developed system. Some systems closed due to financial reasons or road construction. | Burgas, | Haskovo, | Pazardzhik, | Pleven, | Ruse, | Sliven, | Sofia, | Stara Zagora, | Varna, | Vratsa |
Canada | Vancouver: Operational, Laval: Under Consideration, Montréal: Under Consideration | Laval, | Montréal, | Vancouver |
Chile | Operational | Valparaíso |
Colombia | Historical (No longer in operation) | Bogotá (1948–1991), | Medellín (1929–1951) |
Croatia | Rijeka and Split had trolleybuses until 1972. | No operational systems |
Czech Republic | 14 operational trolleybus systems. | Multiple cities |
Denmark | Trolleybuses were in operation in Gentofte (1927–1963) and Odense (1939–1959). | Gentofte (suburb of Copenhagen), | Odense |
Ecuador | Operational | Quito |
Estonia | Trolleybuses in use, with a gradual substitution with hybrid drive buses. | Tallinn |
Finland | Both cities had trolleybus systems in the past. Helsinki is considering restoring trolleybus services. | Helsinki, | Tampere |
France | Trolleybuses are in use, and preserved trolleybuses are at the Musée des Transports (AMTUIR) in Colombes. | Limoges, | Lyon, | Nancy, | Saint-Étienne |
Georgia | Trolleybuses once operated in 12 cities, only Sukhumi remains | Sukhumi |
Germany | Three cities have operational trolleybus systems. | Eberswalde, | Esslingen, | Solingen |
Greece | Athens has one of the largest trolleybus networks in Europe with 354 vehicles. | Athens |
Hungary | Trolleybuses are in use in three cities. | Budapest, | Debrecen, | Szeged, |
Italy | Various cities have operational trolleybus systems. New systems are under construction or planned. | Bologna, | Milan, | Rome, | Multiple additional cities |
Latvia | Trolleybuses have been in use since 1947. | Riga |
Lithuania | Trolleybuses have been in use since 1956 and 1965, respectively. | Kaunas, | Vilnius |
Mexico | Operational | Mexico City |
Moldova | Trolleybuses are used in several cities. | Bălți, | Chisinau, | Tighina, | Tiraspol |
Netherlands | Trolleybuses were in use in the past; Arnhem's system is still operational. | Arnhem, | Groningen, | Nijmegen |
Norway | Trolleybuses have been in use since 1950. | Bergen |
Peru | Historical (No longer in operation, converted into trams) | Lima (1928–1931) |
Poland | Three cities have operational trolleybus systems. | Gdynia, | Lublin, | Tychy |
Portugal | Trolleybuses are operated in Coimbra. Braga and Porto had trolleybuses in the past. | Braga (past), | Coimbra, | Porto (past) |
Romania | Several cities have operational trolleybus systems. Timișoara's system was built with Italian equipment. | Bucharest, | Cluj, | Iași, | Timișoara, | multiple additional cities |
Russia | Trolleybus systems operate in various cities, including an interurban network in Crimea. | Nizhny Novgorod, | Saint Petersburg, | 80+ additional cities |
Serbia | Belgrade has eight trolleybus routes with plans for extensions. | Belgrade |
Slovakia | Trolleybuses operate in four cities. | Banská Bystrica, | Bratislava, | Prešov, | Žilina |
Slovenia | Trolleybuses operated in Piran and Ljubljana in the past. | Ljubljana (past), | Piran (past) |
Spain | Castellón de la Plana has a new system since 2008. Trolleybuses operated in various Spanish cities in the past. | Castellón de la Plana |
Sweden | Landskrona has a small operational system. | Landskrona |
Switzerland | Several cities have operational trolleybus systems; some systems closed in Lugano and Basel. | Geneva, | Lausanne, | Lucerne, | multiple additional cities |
Trinidad and Tobago | Historical (No longer in operation) | Port of Spain (1941–1956) |
Turkey | Trolleybuses operated in Ankara (1947-1986), Istanbul (1960s-1984), and Izmir (closed in 1992). New systems in Malatya (opened in 2015) and Sanliurfa (opened in 2023) | Ankara, | Istanbul, | Izmir, | Malatya, | Sanliurfa |
Ukraine | Trolleybus systems operate in various cities, including the world's longest route in Crimea. | Kharkiv, | Kyiv, | Lviv, | Odesa, | multiple additional cities (40+ in total) |
United States | Boston: Operational, Philadelphia: Operational, San Francisco: Operational, Seattle: Operational, Dayton: Operational, Various Museums: Preservation | Boston, | Dayton, | Philadelphia, | San Francisco, | Seattle, | various Museums |
Uruguay | Historical (No longer in operation) | Montevideo |
Venezuela | Historical (No longer in operation) | Caracas (1937–1949), | Mérida (2007–2016), | Valencia (1941–1947) |