The Urban Audit is a collection of quantitative information on the quality of life in European cities. The domains covered by the collected variables include: population, housing structure, health, labour market, education and training, economic activity, environment, transport, culture and leisure.
The demographic threshold required by Eurostat is 50 000 inhabitants. The Urban Audit collection 2009-2010 plans an « exhaustive Urban Audit » project and an « annual Urban Audit » project. The City of Luxembourg participates in the “Urban Audit”
The Communication Cluster Luxembourg, Metz, Saarbrücken, Trier, abbreviated to “QuattroPole”, is a network of neighbouring towns whose aim is to promote the Greater Region by common projects.