RN 20: Tree planting between Saint-Germain-lès-Arpajon and Linas

The Department of Essonne is undertaking vegetation work on the RN 20, causing traffic disruptions for three weeks.

Generic image of tree planting work along a road in Île-de-France.
AI

Generic image of tree planting work along a road in Île-de-France.

The Department of Essonne has begun planting new trees and shrubs along the RN 20, across a dozen areas between Saint-Germain-lès-Arpajon and Linas.

These works, scheduled to last approximately three weeks starting from November 16, 2026, will take place from Monday to Friday, between 9 AM and 4 PM. No work will be carried out at night, on weekends, or on public holidays.
The program includes soil preparation, planting of trees and shrubs, installation of borders and root barriers to protect the roadway, followed by turfing.
On the road, users should expect one lane to be closed in the work zone, a speed limit of 50 km/h in the vicinity of the construction site, and prohibitions on overtaking and parking in this area.
Markings will be installed each morning and removed at the end of the day, ensuring the road remains accessible outside these hours. Caution is advised.
Based on information from the official source: Mairie de Saint-Germain-lès-Arpajon (13/11/2026)