
The A4 motorway to the east: Paris-Strasbourg via Reims, Metz, Strasbourg and on to Germany.
The A26 between Calais and Troyes passes by Reims, Laon and Saint Quentin. The A29 Amiens – Saint Quentin, linked to the A16 Boulogne-sur-Mer – l’Isle Adam and to the A26, provides a direct link between Reims and the Côte Opale (northern France). The A5 links Troyes with Langres and Paris; the A31, links Langres and Dijon.
For further information, contact the Société des Autoroutes du Nord et de l'Est de la France.
Echangeur de Reims-Tinqueux – BP 38 – 51431 Tinqueux Cedex.
Phone: +33 (0)3.26.83.51.00.

See here.

Cours Anatole France, Rue Saint Symphorien and Place du Boulingrin.
The area in front of the cathedral is only to be used for dropping off passengers.