[DE] Dortmund orders new LRVs from Heiterblick

Dortmunder Stadswerke (DSW21), responsible for the public transport in the German city of Dortmund, has placed an order for 24 new Vamos high-floor LRVs from Heiterblick. 64 existing B80C type LRVs are being modernized. And telling them apart will be hard as all the vehicles will look the same. 

DSW21 awarded Heiterblick a €195 million contract for supplying 24 new LRVs and modernizing 64 of the 74 existing LRVs. Ten LRVs of the existing fleet, bought from Bonn public transport in 1994, will be retired after 44 years on the tracks in Bonn and Dortmund.

Vamos Dortmund

The first sub project is the delivery of 24 2-car bidirectional high-floor vehicles. The contract includes an option for 2 extra LRVs. Heiterblick will be responsible for the mechanical part of the vehicles, Kiepe Electric will develop the electrics. The final assembly of the vehicles will takes place in the Heiterblick factory in Leipzig. The new LRVs will be delivered in 2020 and enter service in 2021.

Heiterblick’s new Vamos LRV for Dortmund – Impression: Heiterblick

Technical data

  • standard gauge, 6 axles
  • 4 doors/side
  • 56 seats (2-car)
  • 3-phase drive power system

Modernizing the existing B80C LRVs

Heiterblick and Kiepe  Electric will modernize the existing 43 2-car and 21 3-car B80C LRVs. These so called ‘Stadtbahnwagen typ B‘ are based on a standard design built for several cities in North Rhine-Westphalia (DE). In total, 470 LRVs in different configurations were built, most of them by Duewag in cooperation with Siemens and Kiepe. 54 Dortmund units were built as 2-car vehicles between 1986 and 1993, of which Eleven units had a middle section added later on. Ten units were delivered as 3-car units. The vehicles have a maximum speed of 80 km/h. The DC motor is Chopper controlled.

To make more space for strollers and wheelchairs, the seating capacity for a 2-car B80C was reduced from 72 to 56 seats.

The modernizing sub project should be completed in 2028.

A LRV that ‘kneels’?

The vehicles will be the first LRVs with a hydraulic kneeling function. This passenger operated system (!) make it possible to reduce the floor height of the LRV by pushing a button. The difference between vehicle floor height (0,98 m) and the platforms (between 0,90 and 0,94 m high) can be reduced by half. Especially disabled people and parents with strollers will benefit from this.

Original DSW21 Stadtbahnwagen typ B LRV on line U42 to Grevel – Photo: DSW21

The LRV LEDs(!) you know

The LRVs will be equiped with LED lights on the doors to enhance safety while boarding. Green lights indicate entering is possible, yellow lights say: ‘hurry, doors close immediately’ and with the lights turning red boarding is no longer allowed.

Further equipment

The driver’s cabs will be feature multifunction displays, modern heating and ventilation systems plus air conditioning. Kiepe Electric will supply the vehicle control system, the drivetrain, the on-board power converters and the integrated vehicle data management system.

The new electrical equipment will be identical on both the new and the modernised LRVs, except for the drive system. The new vehicles will feature a modern DC chopper system.

To ensure and test compatibility between the modernized and newly built vehicles, prototypes of each sub-project will be built.