Poznań

Poznań, like many Polish cities, faces challenges with keeping residents informed about sudden, real-time changes in public transport routes. Currently, unexpected diversions due to accidents, traffic congestion, or infrastructure work can disrupt transit, leading to frustration among passengers. Currently the absence of an effective notification system impacts travel comfort and decreases trust in public transport services. Poznań seeks to address this with a solution that would inform users in real-time about changes to their planned routes and suggests alternative routes when disruptions occur.

The city is looking for a digital solution that could integrate real-time GPS data from vehicles with scheduled routes, using GTFS (General Transit Feed Specification) and GTFS-RT (Real-Time) data, to detect and report disruptions. The solution should be able to identify route deviations automatically and provide immediate notifications to users about sudden changes, along with suggested alternative routes, preferably shown on a digital map layer.

Given Poznań’s extensive public transport network, including trams that are constrained by fixed tracks and buses that have more flexibility, the solution should effectively handle diverse route disruptions and dynamic re-routing needs.

The solution should preferably be accessible via a mobile app (integration is possible with Smart City Poznan – an app owned by the city) and city´s transport website (e.g. https://www.ztm.poznan.pl/) and integrate well with other systems, supporting data sharing through a publicly available API for broader applicability.

Desired situation

• • Accuracy of the information provided to the users on disruptions and alternative routes

• • Enhanced user experience and increased satisfaction through timely notifications, clear communication, and reliable alternative route suggestions.

• • Increased trust in public transport by minimizing frustration associated with unexpected delays and improving travel reliability.

• • Data-driven optimisation – Leveraging collected data for ongoing assessment and enhancement of transit routes, identifying high-disruption areas, and improving service reliability over time.

Collaboration and Data Availability: Poznań’s Digitalization and Cybersecurity Office, along with the Public Transport Authority, will collaborate closely with a potential solution provider by offering insights, support, and access to necessary GTFS and GTFS-RT da