ADtranz low floor tram
Encyclopedia
The ADtranz low floor tram was introduced in the 1990s as the world's first tram
Tram
A tram is a passenger rail vehicle which runs on tracks along public urban streets and also sometimes on separate rights of way. It may also run between cities and/or towns , and/or partially grade separated even in the cities...

 with a completely low floor. This tram was developed by MAN for the Bremen
Bremen
The City Municipality of Bremen is a Hanseatic city in northwestern Germany. A commercial and industrial city with a major port on the river Weser, Bremen is part of the Bremen-Oldenburg metropolitan area . Bremen is the second most populous city in North Germany and tenth in Germany.Bremen is...

 urban transport system. The prototype, tram number 3801, was first publicly introduced on 9 February 1990. From 1991 to 1993, it was tested in many European cities. Ten German cities have purchased this type. Adtranz took over the rail division of MAN in 1990. The standard-gauge version was named GT6N or GT8N and the metre-gauge version was called GT6M.

ADtranz low floor tram
Tram
A tram is a passenger rail vehicle which runs on tracks along public urban streets and also sometimes on separate rights of way. It may also run between cities and/or towns , and/or partially grade separated even in the cities...

s come in lengths of three or four modules, all of which are approximately the same length. Under each module lies a bogie
Bogie
A bogie is a wheeled wagon or trolley. In mechanics terms, a bogie is a chassis or framework carrying wheels, attached to a vehicle. It can be fixed in place, as on a cargo truck, mounted on a swivel, as on a railway carriage/car or locomotive, or sprung as in the suspension of a caterpillar...

; the low floor, however, constrains the bogie's movement. Two of the axles are electrified linked to the bogie truck by means of a universal joint
Universal joint
A universal joint, universal coupling, U joint, Cardan joint, Hardy-Spicer joint, or Hooke's joint is a joint or coupling in a rigid rod that allows the rod to 'bend' in any direction, and is commonly used in shafts that transmit rotary motion...

. Characteristic of this tram is its abiliity to follow curves, which requires a special track layout. This occurs when the first or last module drives through an arc and drags the other two modules (which are on the straight) after it.

The ADtranz low floor tram was introduced in the 1990s as the world's first tram
Tram
A tram is a passenger rail vehicle which runs on tracks along public urban streets and also sometimes on separate rights of way. It may also run between cities and/or towns , and/or partially grade separated even in the cities...

 with a completely low floor. This tram was developed by MAN for the Bremen
Bremen
The City Municipality of Bremen is a Hanseatic city in northwestern Germany. A commercial and industrial city with a major port on the river Weser, Bremen is part of the Bremen-Oldenburg metropolitan area . Bremen is the second most populous city in North Germany and tenth in Germany.Bremen is...

 urban transport system. The prototype, tram number 3801, was first publicly introduced on 9 February 1990. From 1991 to 1993, it was tested in many European cities. Ten German cities have purchased this type. Adtranz took over the rail division of MAN in 1990. The standard-gauge version was named GT6N or GT8N and the metre-gauge version was called GT6M.

ADtranz low floor tram
Tram
A tram is a passenger rail vehicle which runs on tracks along public urban streets and also sometimes on separate rights of way. It may also run between cities and/or towns , and/or partially grade separated even in the cities...

s come in lengths of three or four modules, all of which are approximately the same length. Under each module lies a bogie
Bogie
A bogie is a wheeled wagon or trolley. In mechanics terms, a bogie is a chassis or framework carrying wheels, attached to a vehicle. It can be fixed in place, as on a cargo truck, mounted on a swivel, as on a railway carriage/car or locomotive, or sprung as in the suspension of a caterpillar...

; the low floor, however, constrains the bogie's movement. Two of the axles are electrified linked to the bogie truck by means of a universal joint
Universal joint
A universal joint, universal coupling, U joint, Cardan joint, Hardy-Spicer joint, or Hooke's joint is a joint or coupling in a rigid rod that allows the rod to 'bend' in any direction, and is commonly used in shafts that transmit rotary motion...

. Characteristic of this tram is its abiliity to follow curves, which requires a special track layout. This occurs when the first or last module drives through an arc and drags the other two modules (which are on the straight) after it.

The ADtranz low floor tram was introduced in the 1990s as the world's first tram
Tram
A tram is a passenger rail vehicle which runs on tracks along public urban streets and also sometimes on separate rights of way. It may also run between cities and/or towns , and/or partially grade separated even in the cities...

 with a completely low floor. This tram was developed by MAN for the Bremen
Bremen
The City Municipality of Bremen is a Hanseatic city in northwestern Germany. A commercial and industrial city with a major port on the river Weser, Bremen is part of the Bremen-Oldenburg metropolitan area . Bremen is the second most populous city in North Germany and tenth in Germany.Bremen is...

 urban transport system. The prototype, tram number 3801, was first publicly introduced on 9 February 1990. From 1991 to 1993, it was tested in many European cities. Ten German cities have purchased this type. Adtranz took over the rail division of MAN in 1990. The standard-gauge version was named GT6N or GT8N and the metre-gauge version was called GT6M.

ADtranz low floor tram
Tram
A tram is a passenger rail vehicle which runs on tracks along public urban streets and also sometimes on separate rights of way. It may also run between cities and/or towns , and/or partially grade separated even in the cities...

s come in lengths of three or four modules, all of which are approximately the same length. Under each module lies a bogie
Bogie
A bogie is a wheeled wagon or trolley. In mechanics terms, a bogie is a chassis or framework carrying wheels, attached to a vehicle. It can be fixed in place, as on a cargo truck, mounted on a swivel, as on a railway carriage/car or locomotive, or sprung as in the suspension of a caterpillar...

; the low floor, however, constrains the bogie's movement. Two of the axles are electrified linked to the bogie truck by means of a universal joint
Universal joint
A universal joint, universal coupling, U joint, Cardan joint, Hardy-Spicer joint, or Hooke's joint is a joint or coupling in a rigid rod that allows the rod to 'bend' in any direction, and is commonly used in shafts that transmit rotary motion...

. Characteristic of this tram is its abiliity to follow curves, which requires a special track layout. This occurs when the first or last module drives through an arc and drags the other two modules (which are on the straight) after it.

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