Infrastructure & Mobility
The Grand Paris Express: 2024 Status
The €36 billion expansion of the Île-de-France transit network is simultaneously Europe's most ambitious infrastructure project and its most delayed. While the Line 14 extension South to Orly Airport successfully opened ahead of the Olympics, Lines 15, 16, and 17 face compounding geological and budgetary hurdles.
Line 14 Ext. (North/South)
Operational (June 2024)
Line 15 South
Delayed (Est. late 2025)
Line 16
Under Construction (Est. 2026)
New Tool
Navigo ROI Calculator
With the recent overhaul of Île-de-France mobility pricing (single tickets to €2.50, airport trains standardized), the mathematics of the Navigo pass have shifted.
Calculate Your Optimal Fare Strategy