HHA Type DT4

The two-car train 4 ( DT4 ) are rail vehicles that come in the Hamburg U- Bahn network used. As planned, they drive on the lines U1, U2 and U4, unscheduled or construction traffic on the U3. The vehicles were phased from 1988.

Development

The development of the underground type began in 1986. Initially, the manufacturer LHB supported ( dare structural part) and ABB ( technical equipment) on the experience gained in the DT3 -DAT. The new train should stand out by its futuristic design, reduced noise emissions, increased safety and greater cost-effectiveness of the older vehicles.

The first unit could be presented to the public on May 30, 1988, the use in passenger service began October 17 of the same year.

By 2005, a total of 126 two-car units were handed over in six series delivery.

Cart -planning

The DT4 are four-part vehicles that run on six bogies. The second and fifth bogie unpowered bogies, similar to Jacob bogies.

The body was created in lightweight steel construction. The bent outwards car body construction and the installation of exterior swing doors made ​​it possible to increase the passenger compartment so that the seat assembly 2 2 was possible. Two double swing doors have been installed per site per single car, a transition between the single-car does not exist.

The type DT4 was the first underground world, which was equipped with a sprinkler system for fire fighting in the passenger compartment.

Beginning in 2011 should be revised in the interior and adapted to the design of the next generation of cars from 2012 DT5 DT4 the trains. Trial basis for the fourth car of the unit 140 was rebuilt in the summer of 2010. The unit 140 was partly also from 2001 as a prototype for the interior design of the DT4.5 and DT4.6.

Pictures

DT4 - train in the subway station Überseequartier (U4 )

Two DT4 units in the HafenCity University subway station (U4 )

Interior DT4 - train ( station Norderstedt Mitte/U1 )

Interior DT4.5 - train ( station Norderstedt Mitte/U1 )

Others

  • The first sub- series DT4.1 and DT4.2 had on the doors originally two sliding lever to open, which were later replaced by a push button. The doors closed so quickly that it popped. In all DT4.1 and DT4.2 trains of the locking mechanism has been adjusted so that the doors just slow down the closing process before they close completely. The train 140 is the first train of the series DT4.2 with a new locking technology, which are also used in the DT4.3 to DT4.6. The interior of the car 140-4 was adapted to the type DT4.6 that the 140-1 has been adapted to the DT5. The difference of DT4.5 to DT4.6 can be recognized by the dustbins in the interior and on the built-in antennas for receiving video data.
  • The carriage 121 and 128 have advertisements of a lottery company. The carriage 141 advertises with the slogan " Hamburger Weg ".
  • The train 130 from the sub- series DT4.2 named Norderstedt and is located to the train 129 owned by the transport company Norderstedt ( VGN ).
  • When DT4.1 and DT4.2 it happens when starting that the discs vibrate slightly. Furthermore, this series loudest. When DT4.3 to DT4.6 there are no vibrations, since there other, quieter power converters are used.
  • DT4.6 trains can be coupled only to each other. Exceptions are the trains 210 and 211, which, although basically DT4.5, however, have the drives of DT4.6. Therefore they are often referred to as DT4.56.
  • The DT4.1 are numbered 101-130, the DT4.2 the numbers 131-151, the DT4.3 are numbered 152-171, the DT4.4 172-186, the DT4.5 187-209 that DT 4:56 210-211 and DT4.6 from 212 to 226
  • The innovations in DT4 are, in addition to the push buttons for the automatic opening of the door, replace the manual sliding mechanism of the predecessor DT3, also monitors, which are located in all DT4 units. The monitors are attached to the side hanging from the ceiling, each have a display on front and back and inform passengers of the Hamburg weather, news from Hamburg and all over the world as well as cultural events. Even advertising is sent, with certain advertisements are only displayed when there is the seat of the advertising partner near the next stop. Just before the next stop of the stop's name and the possibly existing interchanges there are shown up to the stop of the train in the monitor.
HHA Type DT3 Fire sprinkler system Electronic visual display HHA Type DT1 HHA Type DT2
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