![](http://www.metro-pole.net/x/RER_17.gif)
![](http://www.metro-pole.net/x/RER-d_17.gif)
New branch between Villiers le Bel and Parc des Exposition, this branch is also called "Barreau de Gonesse".
According the planning work should begin in 2017 for an opening in 2020.
This link between the RER D and B is made to ease the access to CDG airport and other industrial hubs of northestern outer suburbs by public transport for the people living in the northern outer suburbs.
This branch is 11.4 km, the trip will be 10 minute long instead of 35 by bus. It will be served by a train every 15 minutes.
A new station will open at Gonesse in an area where some urban development are planned.
![](http://i34.photobucket.com/albums/d107/Vincentthomas/Album%204/carte_environnement_projet_1200.jpg)
Transportation in this area in 2025
![](http://i34.photobucket.com/albums/d107/Vincentthomas/Album%204/carte_du_projet_large.jpg)
Blue circle: Main existing areas of economic activity.
Orange circle : Main areas of economic activity in project.
The yellow zones are the possible route for a new high speed train link to CDG airport.