The Dutch A15 motorway (Rijksweg 15) is a set of two motorways in the Netherlands, the A15 and the A18.
The London Night Bus network is a series of night bus routes that serve Greater London.
The N (Northern) postcode area, also known as the London N postcode area, is the part of the London post town covering part of North London, England.
The N18 is a national route in South Africa which runs from Warrenton through Vryburg and Mahikeng to Ramatlabama on the border with Botswana.
The N18 road is a national primary road in Ireland, connecting the cities of Limerick and Galway.
The Route nationale 18 (N18) is a trunk road (nationale) in north east France.