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More frequency. New lines. Better connected.
Line 400, CityTaktPlus and DOnight make Dortmund Mobil.
With the Dortmund Mobil project, the City of Dortmund and DSW21 are improving local public transport in a targeted and sustainable way. The new Line 400 connects central city districts such as Kreuzviertel, Hauptbahnhof, Borsigplatz and Kaiserviertel every 10 and 20 minutes - conveniently, directly and without changing trains. It is supplemented by line 401, which runs in a clockwise direction and completes the ring.
The CityTaktPlus provides more frequent service on busy light rail lines - in future even every 2 minutes on some sections. This means shorter waiting times, better connections and more reliability in everyday life. With DOnight will also significantly expand the service in the late evening and at night - both on the railway and with electric night buses. The result is a mobility service that is reliable, climate-friendly and suitable for everyday use - for the whole of Dortmund, around the clock.
New campaign flanks recruitment drive
DSW21 has already taken on almost 120 drivers this year. And that is far from the end.
DSW21 is getting serious! The transport company is continuing its recruitment drive for the mobility turnaround in Dortmund and the implementation of the Dortmund Mobil concept with the three components DOnight to optimise night-time public transport services, CityTaktPlus to increase the frequency of services on heavily frequented light rail sections and "Line 400". A new campaign is currently underway with radio adverts on 91.2 and poster motifs.
"Make yourself and our environment happy: with a job with us." DSW21 is using this appeal to recruit new drivers for both the bus and light rail sectors. The message is clear: as an employee, you are part of the mobility transition and make an active contribution to climate protection. So you're not just moving people from A to B, you're also making a sustainable difference.

Start is planned after the 2025 autumn holidays. Due to a construction project, the original start was postponed slightly - a construction project in "Von-der-Goltz-Straße" made a short postponement necessary: A water transport pipeline has to be renewed there after repeated pipe bursts occurred in autumn 2024. This street is located directly on the future route of line 400 - and as a connecting section of many lines, it would not have made sense to operate with a diversion at the beginning
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 division into lines 400 and 401 is primarily intended to serve our customers. Journeys on line 400 with destination "Stadthaus" always travel the ring in an anti-clockwise direction - they then change the line number to 401 at "Stadthaus" and continue to Funkenburg. There, the number and destination are changed again to 400, while route 400 with destination "Funkenburg" travels the ring in a clockwise direction
In addition, these buses will also be labelled "Ringverkehr" in the destination display so that it is clear that no change is necessary.
These lines will be cancelled or rerouted:
- 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.
The direct connection will change in part. Although the tangential line 452 has been cancelled:
- Line 401 will continue to connect the neighbourhood every 20 minutes in a ring service.
- The new line 453 provides a direct connection to the main railway station.
- Bus connections to light rail services will remain every 10 minutes.
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)