Trolleybus: Difference between revisions
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A '''trolleybus''' (also called '''trackless trolley''' or '''trackless tram''') is an electric [[bus]] that gets its power from the overhead wires. | A '''trolleybus''' (also called '''trackless trolley''' or '''trackless tram''') is an electric [[bus]] that gets its power from the overhead wires. | ||
== Usage == | == Usage == | ||
Trolleybuses as most | Trolleybuses as most often used in the cities as means of [[public transport]]. Nevertheless, there are also suburban and even intercity trolleybus lines. The longest intercity trolleybus line is to be found on [[Krimea]], [[Ukraine]]. It connects [[Simferopol]] with the seaside resort [[Yalta]]. This trolleybus line is 75 kilometers long. | ||
Apart from the passenger trolleybuses, there are also freight trolleybuses, but they are less common. | Apart from the passenger trolleybuses, there are also freight trolleybuses, but they are less common. | ||
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Advantages | Advantages | ||
* | * Environmentally friendly (compared to bus) | ||
* Electric motor needs less mantainment than diesel engine | * Electric motor needs less mantainment than diesel engine | ||
* Trolleybus is ceaper than the tram | * Trolleybus is ceaper than the tram | ||
* Trolleybus is more flexible than tram, since it can move | * Trolleybus is more flexible than tram, since it can move independently from its infrastructure (wires) using batteries | ||
Disadvanatages | Disadvanatages | ||
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== Modern developements == | == Modern developements == | ||
There are three French cities, Nancy, Caen and Clermont-Ferrand, that have so-called "rubber-tired trams". The vehicles got their power from the overhead wires and look like modern articulated | There are three French cities, Nancy, Caen and Clermont-Ferrand, that have so-called "rubber-tired trams". The vehicles got their power from the overhead wires and look like modern articulated trams, but they actually run on rubber-tired wheels, like trolleybuses. The only rail is used to guide to vehicle, but vehicle doesn't run on the rail, like normal trams do. Therefore the name "tramway" is controversial, and the vehicles are rather something between tram and trolleybus. | ||
Latest revision as of 07:52, 7 February 2010
A trolleybus (also called trackless trolley or trackless tram) is an electric bus that gets its power from the overhead wires.
Usage
Trolleybuses as most often used in the cities as means of public transport. Nevertheless, there are also suburban and even intercity trolleybus lines. The longest intercity trolleybus line is to be found on Krimea, Ukraine. It connects Simferopol with the seaside resort Yalta. This trolleybus line is 75 kilometers long.
Apart from the passenger trolleybuses, there are also freight trolleybuses, but they are less common.
Advantages and disadvantages
Advantages
- Environmentally friendly (compared to bus)
- Electric motor needs less mantainment than diesel engine
- Trolleybus is ceaper than the tram
- Trolleybus is more flexible than tram, since it can move independently from its infrastructure (wires) using batteries
Disadvanatages
- Trolleybuses are more expensive than buses
- Trolleybus wires cause visual pollution
- Average trolleybus can carry less passenger than tram (approx. 100 vs 200, if articulated)
Spreading
While only few American and West European cities have trolleybuses, trolleybuses are very popular in Eastern Europe and former Soviet Union.
Modern developements
There are three French cities, Nancy, Caen and Clermont-Ferrand, that have so-called "rubber-tired trams". The vehicles got their power from the overhead wires and look like modern articulated trams, but they actually run on rubber-tired wheels, like trolleybuses. The only rail is used to guide to vehicle, but vehicle doesn't run on the rail, like normal trams do. Therefore the name "tramway" is controversial, and the vehicles are rather something between tram and trolleybus.