Last updated: 17 Jan 2024 | Recent visits: 20 L UISA UI - Boundaries for the functional urban areas (LUISA Platform REF2014) A functional urban area consists of a city plus its commuting zone. This was formerly known as LUZ (larger urban zone). The source for the boundaries is: EuroGeographics Association for the administrative boundaries and DG REGIO. WEB PUB DWN GEO