What is "nordstad"

Nordstad is a development area in north-central Luxembourg, and a colloquial term to refer to the combined urban areas in the region. The name is Luxembourgish for 'northern city', but it remains the title, both formal and informal, of the region in any language.

The idea was coined by Luxembourgian economist Adrien Ries on 2 June 1973. The idea of a unified urban area in the north of the country was put forward to decentralise and diversify the economy, and develop a third major urban area, along with Luxembourg City and the southern Red Lands.