The SUM (Seamless Shared Urban Mobility) project is on a mission to transform current mobility networks into innovative shared mobility systems integrated with public transport across Europe. And now, SUM is inviting cities to become part of this groundbreaking initiative through an Open Call for Observer Cities.

The call is open until 29 March and gives the opportunity to European cities that are part of the CIVITAS Initiative to learn and share missions and visions with the SUM project experts and Living Labs.

The SUM project objectives:

The objective of SUM is to transform current mobility networks towards New and Shared Mobility Systems (NSM) integrated with public transport (PT) in more than 15 European Cities by 2026 reaching 30 by 2030. Intermodality, interconnectivity, sustainability, safety, and resilience are at the core of this innovation.

The call for Observer Cities:

The goal is to expand the positive effects of the project to other cities in Europe. Cities can benefit from first-hand experience, and help SUM develop and expand its expertise. SUM is looking to engage with 3 additional European cities.

Why should a City join as an Observer?

There are multiple benefits for the cities that will be selected to become an official observer. Here are a few:

  • Transferability of Business Models
  • Enhanced Local Capacity
  • Stakeholder Engagement
  • Sustainable Impact
  • Integration and Data Sharing

Observer Cities will benefit from cutting-edge insights and innovative solutions to enhance policy designing through data-driven decisions. Moreover, Observer Cities will be given access to the ERTICO Academy and the opportunity to become part of a collaborative network.


The applying potential Observer City needs to be a member of the CIVITAS Network, have a Sustainable Urban Mobility Plan (SUMP), and be committed to sustainability.


As an Observer City, it will be possible to contribute to raising the profile of the SUM project, participate in annual meetings, visit Living Labs, and provide data to support the development of SUM’s Pan-European Open Data platform.

Ready to Transform Urban Mobility? The application form to become a SUM Observer City can be found here.

Apply now to become a SUM Observer City and be at the forefront of sustainable mobility innovation! The deadline to apply is Friday 29 March 2024. The Terms of Reference with all the information you need can be found here.

Apply here

Let’s shape the future of mobility together!