Discover the project

TELT｜The #LyonTurin, a European story

Discover the Lyon–Turin project as a major European infrastructure initiative, born from cooperation between States, territories and institutions, serving sustainable mobility and a continent-wide rail network.

LyonTurin_2 / LE TUNNEL HISTORIQUE

The history of the Fréjus Tunnel and its role in the development of transalpine rail transport, providing essential context for the new Lyon–Turin line.

LyonTurin_3 / EMPLOI ET CROISSANCE

Understand the project’s impact on employment and the local economy, including the creation of thousands of direct and indirect jobs on construction sites and in activities related to the building of the Mont Cenis cross-border tunnel.

LyonTurin_5 / LE RESEAU EUROPEEN

The role of the Lyon–Turin project within the Trans-European Transport Network (TEN-T): how it contributes to sustainably connecting territories between France, Italy and the rest of Europe through a modern and integrated infrastructure.

Le réseau RTE-T métro d’Europe

Integration of the Lyon–Turin project into the Trans-European Transport Network (TEN-T), a true “European metro” designed to efficiently connect territories and facilitate the movement of people and goods across the continent.

Environment

TELT｜La préservation des sources et de la qualité de l’eau

The measures implemented to protect natural water sources and water quality around the Lyon–Turin construction sites, including monitoring, treatment and restitution systems designed to ensure the preservation of local water resources.

TELT｜Sauvegarde des espèces protégées

Exploration of the Saint-Julien-Montdenis site, where protected tulip bulbs are carefully removed and transplanted across seven sites, with their development monitored over 30 years to help restore the local ecosystem.

TELT AT WORK n.2 – Inside: Manuela Rocca, JeanSulum

Leaders and experts presenting the commitments, expertise and strategic approaches of the Lyon–Turin project.

TELT CME 2021 - Guillaume BRULFERT

Interview with Guillaume Brulfert, a member of the ATMO observatory, responsible for measuring air quality using seven sensors deployed across the construction site to minimise the impact of the works on the population.

TELT CME 2021 – Guillaume Labeque

Statement by Guillaume Labeque on TELT’s environmental protection commitments, highlighting the concrete actions and values underpinning the Lyon–Turin project in its territorial and ecological dimension.

TELT CME 2021- Solenne CLERGEAT

Interview with Solenne Clergeat on her involvement in monitoring construction works under water legislation, including groundwater, surface water and aquatic environments.

TELT – Réunion Comité de Management Environnemental

Interview with Guillaume Brulfert, a member of the ATMO observatory, responsible for measuring air quality using seven sensors deployed across the construction site to minimise the impact of the works on the population.

Safety & commitment

Diffusion de la culture de la sécurité et de la santé au travail

TELT promotes a strong safety and occupational health culture across the Lyon–Turin construction sites, with practices, training and systems designed to ensure safe working conditions for all professionals involved on site.

Formation incendie dans le tunnel du Lyon-Turin

Inside the Lyon–Turin tunnel to understand the training and preparation measures implemented to strengthen safety in underground works, with a focus on fire response exercises and emergency protocols.

TELT | Struttura binazionale antimafia della Torino-Lione

How TELT has set up a binational anti-mafia control structure to ensure transparency and integrity in public procurement procedures, and to guarantee that no company involved in the construction is linked to criminal networks.

Construction sites & techniques

TELT | Live from the factory: unveiling the brand new #LyonTurin tunnel boring machine

Manufacturing of a new-generation tunnel boring machine and how industrial innovation and high precision contribute to meeting the technical challenges of the Lyon–Turin base tunnel.

TELT | The Single Mont Cenis Base Tunnel

Exploration of the Mont Cenis base tunnel: its route, technical characteristics and key role in the future Lyon–Turin rail link at the heart of European transport connections.

TELT | Portail d’entrée du tunnel de base du Lyon-Turin

Discovery of the French entrance portal of the base tunnel, the starting point for trains and a major interface between the railway infrastructure, the territory and the future uses of the line.

TELT｜Le chantier de gestion et valorisation des matériaux d’excavation France

Operation of the French construction site dedicated to managing excavated material from the base tunnel: sorting, processing and reuse of materials to support the project and reduce its environmental impact.

Visite de la 3CMA au chantier SMP4 – TELT

Visit inside the Saint-Martin-la-Porte worksite gallery and follow-up with project teams, focusing on access methods, underground work organisation and the technical challenges of tunnelling through the Alps.

Events

TELT｜Lyon Turin Engagement Forum – 27 octobre 2025, Rome

Excerpt from the Rome forum bringing together institutions, experts and stakeholders to discuss the environmental, social and territorial commitments of the Lyon–Turin project.

Welcome to WTC 2025 in Stockholm

The World Tunneling Congress in Stockholm in May 2025 is a scientific programme dedicated to tunnels, including technical site visits and cutting-edge innovation methods.

TELT｜Inaugurazione dell'impianto di trattamento dei materiali di scavo

At the heart of a key site facility dedicated to the treatment and recovery of excavated materials, illustrating TELT’s circular economy approach in practice.

TELT｜Les Journées Portes Ouvertes du Lyon-Turin en Maurienne

Excerpt from the Open Days, allowing the public to discover the Lyon–Turin construction sites, interact with project teams and better understand the project’s impact on the region.