A4 motorway (Luxembourg)

The Autoroute 4, abbreviated to A4 or otherwise known as the Esch-sur-Alzette motorway (Autoroute de Esch-sur-Alzette, Escher Autobunn, Escher Autobahn), is a motorway in southern Luxembourg. It is 16.302 km long and connects Luxembourg City to Esch-sur-Alzette.

Overview
The A4 was opened in six separate sections:
 * 1969: Pontpierre – Lallange
 * 1972: Leudelange-Nord – Leudelange-Sud
 * 1974: Merl – Leudelange-Nord
 * 1976: Leudelange-Sud – Pontpierre
 * 1988: Lallange – Lankelz
 * 1992: Lankelz – Raemerech