In the region of Flanders, the Mobilidata-programme is currently rolled out: intelligent traffic light controllers and other innovative technological solutions are deployed to enable safer, more efficient, inclusive, and sustainable traffic. These technological solutions are co-created with citizens, policy makers, businesses, researchers and will be available for all road users, including those with specific needs. In this session, the benefits of applying a participatory approach when designing and developing new C-ITS solutions will be explained and main lessons learned and future opportunities will be shared with the audience.