New or renovated trains, buses, trams and metros, designed to better respect the environment and increase the comfort of passengers? This is the ambition of Île-de-France Mobilités.
Comfort, also climatic, which requires the generalization of air conditioning and refrigerated ventilation systems throughout the Ile-de-France network.
In May 2026: 3/4 of trains and RER trains are already equipped with air conditioning or ventilation.
By 2035, all metro trains will have been replaced by Île-de-France Mobilités and will be equipped with a refrigerated ventilation system.
In the meantime, the renewal of the equipment continues, today: 1 out of two metros in circulation is equipped with refrigerated ventilation.
The first trains of the brand new, air-conditioned and modern "rail" metro, the MF19, have arrived in Île-de-France on line 10, lines 3, 3 bis, 7, 7 bis, 8, 12 and 13, will all be equipped with them by 2033.
On some lines, installing real air conditioning is not possible: the tunnels are too narrow, which could overheat the air and block traffic.
Faced with these constraints, Île-de-France Mobilités has chosen a more suitable solution: refrigerated ventilation. Less powerful than a conventional air conditioner, but more compatible with the infrastructure, it still cools the atmosphere on board.
All tram and tram-train lines (these famous trams that can run both in the city and on railway lines) are air-conditioned in Île-de-France.
Today, 60% of the Ile-de-France bus and coach fleet has air conditioning.
This percentage is set to change with the massive renewal of equipment undertaken by Île-de-France Mobilités.
1. Water! Carry a bottle or flask filled with water. And drink regularly.
2. Shade. Are you waiting for the bus, the tram?
Stay in the shade (or bring a hat, a parasol).
On the Île-de-France de demain website, you will find a list of places to stay cool in Paris and its Region and access climate shelters near you.
3. Air-conditioned vehicle? Keep the freshness inside.
Don't open windows, keep cool inside