GZM

🇵🇱 Poland
🌍 Eastern Europe
🏢 Mixed

🔗 Website

About

The Metropolis GZM in southern Poland is one of Central Europe’s largest metropolitan unions, bringing together multiple cities in the Silesian region. Historically shaped by heavy industry, GZM is transforming into a diversified economy focused on services, innovation, and sustainable mobility. It coordinates metropolitan transport, spatial planning, and economic development, strengthening regional cohesion and competitiveness.

Additional Information

GZM is Poland’s largest metropolis (2.3 million inhabitants, 41 municipalities), comprising Katowice as the core city alongside surrounding Silesian towns. It represents Central Europe’s most significant post-industrial urban transformation project, transitioning from coal and steel towards a knowledge economy, cultural tourism, and green technology. GZM was the first Polish metropolitan association created under dedicated legislation (2017) and operates as a strategic authority for transport, environmental policy, and smart city development.

City Snapshot

Population

2128034

Area

2554 km2

Density

833/km2

Altitude

249 m

Weather

Temperatures (°C)

Rainfall (mm)

Strategic Vision and Achivements

Górnośląsko-Zagłębiowska Metropolia (GZM) is implementing a comprehensive Smart Metropolis strategy, focusing on integrated public transport (the ŚKUP card system covering all 41 municipalities), smart energy transition away from coal dependency, digital administration, and spatial data infrastructure. GZM aims to become a model for polycentric metropolitan smart city development in Central Europe.

Challenges

Challenges are defined by cities to clearly express the urban issues they are facing. They describe specific needs and contexts, helping innovators, companies, and organizations understand the problem and propose relevant, tailored solutions.
Kitchen Bio-Waste Collection and Contamination

✅ Finalized

♻️ Waste
GZM needs an integrated, validated model for separate kitchen bio-waste collection that works for multi-family housing and scales across its municipalities.

Experimental Capacity

Pilots

Pilots are real-life implementations of selected solutions in cities. They allow stakeholders to test ideas in real conditions, measure their impact, learn from the results, and determine whether the solution can be improved, replicated, or scaled to other contexts.

Kitchen Bio-Waste Closed-Loop Pilot – GZM

🔓 Open

🗓️ Start: 2025-01-01

⇨

🗓️ End: 2027-12-31
Real-life testing of a closed-loop kitchen bio-waste system in the Górnośląsko-Zagłębiowska Metropolia (GZM), covering resident engagement, separate household collection, collection validation, transport conditions and analysis of the municipal organic kitchen waste stream. The pilot covers about 4 000 households in multi-family buildings in Chorzów.
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