Region
Germany

Carpooling at the University Hospital Bonn

Download white paper with case studies

How Bonn became the first German region to systematically connect carpooling with public transport, creating a cross-employer mobility network that supports commuters despite major infrastructure constraints.

Public transport operator Bonn – Stadtwerke Bus und Bahn

Building trusted
‍mobility systems

80 %
of passengers carpool with public transport ticket
87 t
CO₂e emissions saved since the start of the project in 2022
86k €
buying power generated for Bonner residents each year

Voices from 
the Region

Denis Bischof
With Karos [ehem. goFLUX], we have a partner that provides an innovative component […] and continues to develop it together with us. Karos is far more than a service provider: it acts as a problem solver, thought partner and trusted advisor.
Denis Bischof
Stadtwerke Bonn GmbH,
Head of Business Development and Projects
Anja Wenmakers
We are delighted to see SWB-Mitfahren delivering such strong results. What began in Bonn as an innovative partnership is becoming a model for cities and employers across Germany. In areas where buses and trains do not operate, or outside regular service hours, it is essential to offer people a flexible mobility option while reducing car traffic at the same time. Carpooling can make an important contribution to cutting CO₂ emissions.
Anja Wenmakers
Managing director of SWB Bus und Bahn / copyright picture: SWB/Marcus Müller Saran

When carpooling and public transport are consistently considered together

Karos transforms everyday commuting into a structured and scalable mobility system by coordinating real-world carpooling through digital technology.
Expanding the mobility mix

Carpooling as an integral part of the mobility mix

Since autumn 2022, Bonn has been the first German region to systematically integrate carpooling into public transport, with a clear fare model and tangible benefits for commuters.
Close mobility gaps

Support when public transport reaches its limits

Carpooling provides an additional option when public transport capacity is stretched or construction works and diversions disrupt daily commuting — without requiring new infrastructure.
Reducing commuter traffic

A cross-employer network, not an isolated solution

Carpooling works across regional and organisational boundaries. Increasing vehicle occupancy helps reduce pressure on both roads and rail networks.
Public transport operator Bonn – Stadtwerke Bus und Bahn
Carpooling network based on completed trips in the Bonn region

Reducing commuter traffic without new infrastructure

The closure of Bonn’s Nordbrücke bridge on the A565 and ongoing rail works across the Rhineland are creating long-term disruption for commuters in the Bonn area. As structural damage means the bridge will not return to regular operation for several years, the pressure to provide additional mobility options remains high.

‍

Since autumn 2022, SWB Bonn has worked with Karos to connect carpooling directly with public transport. A simple fare model encourages broad adoption: passengers with a public transport subscription or Deutschlandticket travel free of charge, while offering rides remains attractive for drivers. The result is a regional, cross-employer network that works across organisational boundaries and can be activated quickly — without building new infrastructure.

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Reduce commuting traffic and emissions

Improve access to jobs and key locations

Track results with live KPIs and impact reporting

Let's make carpooling a new standard for everyday transport.