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The Autopista B-23 or Accés a Barcelona centre is a Spanish motorway that goes from Avinguda Diagonal, in Barcelona City, with the AP-7. It is located in Catalonia and has a length of 15.5 kilometres (9.6 mi).[1] It is part of the European route E90.
^"Ministerio de Fomento, Gobierno de España" (PDF). Listado y Longitud de Carreteras de la RCE (2016). Archived from the original (PDF) on 2017-09-04. Retrieved 2017-09-07.
E90
