The aim of the project is to implement cycling facilities in the municipality of Istres, to develop a network of soft lanes favouring the modal shift through the territory of Istres, the service of employment pools, public facilities and schools, the connection to the multimodal poles between them and with the city, as well as intermodality, in particular cycling/BHNS. This project involves the development of the first 3 C D and G lines over 6.565 km with a total objective of 34 km of bike and/soft mode lanes spread over 7 lines across the city. It will thus be necessary to start the VELO plan by the Ligne G du Rond-Point de Saint CHAMAS at the roundabout of the conservatory, at the roundabout Lucie and Raymond Aubrac; line D from the conservatory roundabout to the Céline Avril roundabout and Line C from the roundabout of Grignan to Nelson MANDELA roundabout with a section of line A to connect line C to line D.