The new city bus routes 400 and 401
From 27 October: New lines 400 & 401 - every 10 minutes, direct & comfortable through Dortmund.
Significantly more mobility turnaround for Dortmun
Read our press article on Dortmund Mobil.
These are the new DSW21 light rail vehicles
The vehicles are equipped with innovative features and have extended capacities.
Linie 400
Line 400
Every 10 minutes, the new line 400 will be the new link between all light rail and S-Bahn axes. Commuters in particular will benefit from better connections.

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CityTaktPlus
CityTaktPlus
The CityTaktPlus ensures more flexibility in Dortmund's local transport system with changes to existing lines. Here you can travel more relaxed thanks to the frequent service.

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DOnight
DOnight
We're getting nightlife moving! Better networking and an extended light rail service mean you can also be mobile in the evening.

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What are the goals of Dortmund Mobil?

More flexibility

Closer intervals, new lines and an extended service provide more flexibility when planning your journeys.

More sustainability

More and more vehicles are going electric. This makes travelling by bus and train more sustainable and quieter.

More mobility

A better connection to regional and long-distance transport makes travelling more comfortable and offers more mobility thanks to P&R.

For all those interested, we provide the public draft resolutions of the City of Dortmund for viewing here.

Draft resolution line 400 (PDF)

Draft resolution DOnight (PDF)

Draft resolution traffic routing line 400(PDF)

Proposed resolution introduction of line 400(PDF)

Supplementary application for Line 400(PDF)

Supplement to draft resolution Line 400(PDF)

The most important facts in brief

Questions and answers about Dortmund Mobil

Dortmund Mobil is a project organised by DSW21 together with the city of Dortmund. It aims to noticeably improve local transport in the city centre with targeted measures, further develop the city's public transport system and make it more attractive for everyone.

Dortmund Mobil consists of three sub-projects: Line 400, CityTaktPlus and DOnight, which include an extended light rail service and more night-time journeys.

The new bus routes 400 and 401 connect Dortmund city centre in a ring service. They run every 20 minutes, and in the core section there is a dense 10-minute interval. Lines 400 (clockwise) and 401 (anti-clockwise) automatically change numbers at the end points - there is no need to change buses. With the new lines, the 452, 455 and 456 will be cancelled, and the 453 will take over the direct connection from Schüren to the main station. In addition, bus stops will be made barrier-free and bus lanes and cycle lanes will be installed.

A concept for increasing the frequency of light rail services:

  • Between the main station and the harbour (U47/U49): every 5 minutes
  • From 2026 also on the U41 between Fredenbaum and Hörde

This will noticeably improve punctuality and connecting services

In future, the light rail will also run at night - initially at off-peak times and later expanded. In addition, night bus lines with electric drive will be in operation, reducing emissions and noise.

The start is 27 October2025.

The line operates in a continuous ring service, running every 20 minutes as such. New sections to Hörde and Märkische Straße, also every 20 minutes, will also be integrated into the concept. Between Stadthaus, Kreuzstraße, Hbf, Borsigplatz and Funkenburg, the services overlap to form a uniform 10-minute interval.

 

The subdivision is primarily intended to help our customers:

  • Journeys on route 400 with destination "Stadthaus" travel the ring in an anti-clockwise direction. At "Stadthaus" they change to route number 401 and continue to "Funkenburg".
  • Journeys on route 400 with destination "Funkenburg" travel clockwise along the ring road. In addition, the sign "Ringverkehr" is displayed on the buses - so it is clearly recognisable that no change is necessary.

 

  • The existing line 452 will be replaced by the ring lines.
  • In future, the new line 453 will run directly from Schüren via the Kaiserviertel district to the main railway station. Many destinations will remain accessible - often even more directly or more frequently.
  • Lines 455 (Dortmund Hbf - Hörde) and 456 (Dortmund Hbf - Schüren) will be completely cancelled and replaced by the new line 400.
  • Lines 412 and 451 will be adapted to provide a better connection to the new 400.

 

Some of the direct connections will change. Line 452 has been cancelled, but:

  • Line 401 will continue to connect the neighbourhood every 20 minutes in a circular service.
  • The new line 453 provides a direct connection to the main railway station.
  • The bus connections to the light rail every 10 minutes will be retained.

Until the start after the autumn holidays:

  • New bus stops will be installed (temporary/barrier-free)
  • Bus lanes and cycle lanes marked
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