Type of services
The current interchange between the RD621 and the RD650 is complex, difficult for users to understand and dangerous. Recorded traffic amounts to 20,000 veh/d on the RD650 and 25,000 veh/d on the RD621, including a high proportion of heavy goods vehicles (20%). The successive changes made over time have resulted in movements that are no longer appropriate, and are causing numerous malfunctions. The redevelopment of this interchange aims to:
- improve the visibility of the junction and user safety,
- streamline the traffic flow between the two departmental roads,
- develop a bike lane and a water retention basin,
- contribute to the economic development of the adjacent business park.
The new interchange, equipped with two roundabouts on the RD650, was built in a complex phased approach, while maintaining road operations at the site. The reclamation of the materials deposited and excavated, the management of rainwater and the planting of new woodland turn this project into a streamlined and sustainable development.
