The European metropolis of Lille has been implementing a structured cycling policy for many years but wishes to go further to become a real "cycling metropolis" as part of a complete "bicycle ecosystem". Increasing the comfort and safety of cyclists is a priority to achieve the objectives of increasing travel in active modes and ensuring better intermodality between modes of travel. Rue de Lannoy is an essential axis to connect the Cousinerie and Recueil districts to Villeneuve d'Ascq and the city of Hem but does not include any cycling facilities. The development work for bicycles will restore a secure cycling network and remove the discontinuity of the Roubaix roundabout crossing.