From Paris : Motorway A15 to Cergy-Pontoise after the motorway A115 to Taverny, exit Taverny-center (1). From Cergy-Pontoise : Motorway A15 to Paris, sortie Montigny-les-Cormeilles/Franconville. On round about on the left then first road on the right as far as the Obelisque, on the right and on light traffic on the right shopping center Auchan (2). RER C : station Montigny/Beauchamp (3). Railway to Nord : ligne Persan/Beaumont, railway to Vaucelles, to the shopping center Auchan(4).