Ermenonville, and Parc Jean-Jacques-Rousseau in Ermenonville. Nearby theme parks like La Mer de sable and Parc Astérix also draw visitors to the area. In 2005, due to difficulties the Institute of France was experiencing with the management of the domain, the more important elements of the domain were taken over by a non-profit corporation created and supported financially by the Aga Khan, charged with economic development, restoration and the development of tourism. Business tourism is another important factor. Proximity to Paris and to the Charles de Gaulle airport combine with the high quality of local hotel properties make it a prime conference destination. More than two thousand are held there every year. Chantilly and its immediate vicinity have three four-star hotels: the Dolce in :Vineuil-Saint-Firmin the Montvillargenne in Gouvieux the Mont-Royal a little further away at La Chapelle-en-Serval There are also four three-star hotels. A conference center run by the Capgemini corporation is also located in the immediate vicinity, in Gouvieux. Another four-star hotel is being built in the Rue du Connétable near the Jeu de Paume, with an additional luxury residence planned for Avilly-Saint-Léonard. Chantilly Arts and Elegance Richard Mille The automobile elegance contest of Chantilly Arts & Elegance Richard Mille takes place in the castle, similar to the Concorso d'Eleganza Villa d'Este in Italy, Pebble Beach Concours d'Elegance in California and Amelia Island Concours d'Elegance in Florida. Communication and transportation Roads The old king's road that once connected Pierrefitte-sur-Seine to Dunkirk by way of Amiens bisects Chantilly from north to south. Formerly known as route nationale 16 this road has been renamed departmental road 1016. Trucks are not illegal on this road, but signs to the north and south of town suggest taking the A1 or A16 instead. The D924a connects to the Flanders road, the old route nationale 17, at :La Chapelle-en-Serval. The D924 runs to Senlis. Trucks are banned on both of these roads, which connect to the A1. The speed limit on D924a is 70 km/h for its entire length through the commune, since it passes through Chantilly Forest, which has many deer crossings. Rail and public transportation The Chantilly-Gouvieux train station was put into service in 1859 on the Paris–Lille railway. It is served by the SNCF via the TER Hauts-de-France network. Express trains reach Paris-Nord in 22 minutes and Creil in seven. The station is also served by line D of the Île-de-France