VAG series DT3

Nuremberg U-Bahn series DT3 / DT3-F
DT3
Numbering:	701 / 702–763 / 764 (DT3) 765 / 766–791 / 792 (DT3-F)
Number:	46 double railcars
Manufacturer:	Siemens TS
Year of construction (s):	2004–2007 (DT3) 2010–2011 (DT3-F)
Axis formula :	Bo'Bo '+ Bo'Bo'
Gauge :	1435 mm ( standard gauge )
Length over coupling:	38,360 mm
Height:	3,576 mm
Width:	2,900 mm
Trunnion Distance:	12,000 mm
Bogie axle base:	2,100 mm
Empty mass:	62 t (DT3) 64 t (DT3-F)
Top speed:	80 km / h
Hourly output :	8 × 140 kW = 1,120 kW
Acceleration:	1.3 m / s²
Driving wheel diameter:	850 mm
Motor type:	Three-phase asynchronous
Power system :	750 V DC
Power transmission:	Lateral power rail coated from below
Brake:	Compressed air , spring-loaded , regenerative utility and resistance brakes
Seats:	82 (DT3) 72 (DT3-F)
Standing room:	238 (DT3) 216 (DT3-F)

The VAG DT3 series is the latest generation of vehicles from the Nuremberg subway and was procured for automatic operation on the new U3 subway line. With this vehicle series, the common procurement philosophy of the Nuremberg and Munich transport companies ends , as the Munich type C differs significantly from the Nuremberg DT3 in terms of the vehicle concept. As a further development, the VAG DT3-F series, which can be used in both conventional and automated driving, was put into service in 2011 .

development

For the underground line 3, the vehicle requirement at VAG was increased again. Since this refused to purchase the previous DT2 type , a new generation of subway vehicles was developed. The visual differences to the DT2 are less than those between DT2 and DT1. The most important innovations are the elimination of the partition walls between the individual cars, which are now continuously accessible, and the elimination of the driver's cabs. The vehicles are the first subway cars in Germany that are driverless in normal operation; instead of the driver's cab, there is a passenger compartment with a panoramic window at the ends of the train. The common route of lines 2 and 3 was the world's first mixed operation in which driverless vehicles and driver-operated vehicles shared a route.

The celebratory roll-out of the first double multiple unit took place on January 5, 2004 in the presence of VAG's technical director, Dr. Rainer Müller, as well as the divisional director of Siemens Transportation Systems , Hans M. Schabert. Together with another double railcar, the vehicle was used as a prototype for the later series trains in order to test all components and to identify and correct possible errors. The two vehicles were returned to Siemens and scrapped after the testing phase. The series delivery of the 32 ordered double multiple units (including replacement for the prototypes) took place between 2004 and 2007, with a purchase option for a further six. The official passenger service of the DT3 began on June 14, 2008 on the U3 underground line, and automatic trains have also been running on the U2 line since January 2010.

At the end of September 2008 it was announced that VAG had increased the purchase option by eight more vehicles to a total of 14 DT. Compared to the previous DT3, the new trains with the designation DT3-F are equipped with an expandable driver's cab so that the trains can be used on both the automated U2 and U3 lines and the conventionally operated U1 line. The costs for the new trains amount to 82.6 million euros, the Free State subsidizes the vehicle purchase with 21.4 million euros. On August 20, 2010 the first double multiple unit arrived at the depot in Langwasser, and since October 4, 2010 test and acceptance runs have been taking place across the entire network. Passengers have been deployed since May 18, 2011.

construction

DT3

Interior of a DT3

In the external basic design, the differences between DT2 and DT3 are only minor. The design with the large one-piece windshield as well as the door and window arrangement are largely the same in both series. However, there are bigger differences in the interior. On the one hand, there are no driver's cabs at the ends of the car, which means that passengers can see the route. Another new feature is the connection between the two halves of the car, which increases comfort and a feeling of security. The additional space created is mainly used as a parking space for prams, bicycles or wheelchairs, and folding seats have also been installed. All cars are also equipped with video cameras. For passenger information, a display is attached above the passageways and at the end of the car, which shows the next stop and symbolizes the exit side with a red arrow.

In addition to these changes, the aim is to make it easier for physically handicapped people to use the automatic trains. For example, handrails in the door area are marked in red for better visibility, the warning signals in the door area are made visible and audible for the deaf. The gap between the platform edge and the vehicle is bridged by means of an extendable ramp and enables z. B. easier for wheelchair users to get on and off. The doors have sensitive edges so that no passengers are trapped by a closing door and dragged along when the train starts moving. An infrared beam in the rubber profile of the door edge detects jammed objects or people, prevents the train from leaving and opens the door again to remove the object or person.

DT3-F

DT3-F in the Klinikum Nord underground station

The structure of type DT3-F largely corresponds to type DT3. The most noticeable change is the driver's cab, which is separated from the passenger compartment and has a full-fledged control panel for conventional operation, on the front of each double railcar. The cabin is manufactured as a module and can be expanded if the U1, which is still conventionally operated today, is automated. In addition to the bus stop displays already used in the DT3, two monitors per half of the vehicle were installed in the passenger compartment for passenger information. In order to increase the readability of the displays, especially for the visually impaired, amber-colored LED displays are used for the stop displays and the train destination displays. To determine the number of passengers, counting devices are attached to each car entrance.

The handling process is carried out from the driver's seat with the aid of sensors and is controlled by the driver with the help of mirrors or monitors attached to the platform.

DT3 and DT3-F vehicles can be coupled together on the route network of the automatically operated U2 and U3.

Conversions

In order to be able to test the DT3 vehicles in advance in passenger operation, the four DT units 715/716, 717/718, 731/732 and 733/734 were in conventional operation on the U1 / U11 lines between May 7 and July 26, 2007 and U2 / U21 on the way. For this purpose, cars were equipped with partition walls between the end of the car and the first door area and received all other equipment necessary for passenger operation (network plans, signs, etc.). They were each operated by two drivers who share the tasks of driving and handling . The reason for this: the DT3s do not have a cabin door for the driver, so that he cannot enter the platform area for train handling. After completion of the test operation, the vehicles were returned to their original condition.

See also

• RUBY
• Subway vehicles in Nuremberg

Web links

Commons : VAG Series DT3  - Collection of Pictures, Videos and Audio Files

• Datasheet of the DT3 on the website of VAG Nuremberg
• Datasheet of the DT3-F on the VAG Nuremberg website
• The DT3 / DT3-F on local transport Franconia (private)
• The DT3 and the DT3-F on cityverkehr.de (private)

Individual evidence

1. ↑ VAG Nürnberg (Ed.): New operating concept on the underground lines U2 and U3 from January 2nd ( memento of the original from June 21st, 2012 in the Internet Archive ) Info: The  archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. . Press release from December 29, 2009.
2. ↑ Nürnberger Zeitung: VAG has ordered 14 new underground trains . Article of September 27, 2008.
3. ↑ Bavarian State Ministry for Economics, Infrastructure, Transport and Technology (Ed.): Müller: "21.4 million euros for new subways in Nuremberg"  ( page no longer available , search in web archives )  Info: The link was automatically defective marked. Please check the link according to the instructions and then remove this notice.   . Press release from September 25, 2008.
4. ^ VAG Nürnberg (Ed.): One subway for all lines: The first DT3-F has arrived!  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.   . Press release from August 26, 2010.
5. ↑ VAG Nürnberg (Ed.): The first new DT3-F underground trains will soon be used in passenger service  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.   . Press release from April 14, 2011.
6. ^ Local traffic in Franconia: News from the U-Bahn January - June 2011