Join the SUM Project as Observer City!

POLIS invite their city members to join the SUM project as part of the City Observers Board.

SUM (Seamless Shared Urban Mobility) aims to transform current mobility networks into innovative shared mobility systems integrated with public transport across Europe.

SUM 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.

Observer cities:

To expand the positive effects of the project to other cities in Europe and so cities can benefit from first-hand experience, SUM is looking to engage with 3 additional European cities.

Why Join as an Observer City?

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

You will benefit from cutting-edge insights and innovative solutions to enhance policy design through data-driven decisions. Moreover, Observer Cities will be given access to several benefits as well as the opportunity to become part of a collaborative network.


If your city is a member of the CIVITAS Network, has a Sustainable Urban Mobility Plan (SUMP), and is committed to sustainability, you’re eligible to apply!


As an Observer City, you’ll 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.

The Terms of Reference with all the information can be found here or here on the right part of the page.

The deadline to apply is Friday, 29 March 2024.

Apply to become a SUM Observer City