SNCF Réseau is investing over EUR 50 million to renew the Paris–Lyon–Marseille line, with four major projects set to be completed by December on the Paris–Dijon rail section.
The Paris–Lyon–Marseille corridor is a key route that supports the operation of 110 trains per day, including both passenger and freight services.
The works on the Paris–Dijon rail section are fully funded by SNCF Réseau and aim to modernise the infrastructure and improve the reliability of rail traffic, while maintaining peak-time passenger services and overnight freight operations.
SNCF Réseau is allocating EUR 3.5 million for the reinforcement of the Blaisy Tunnel over a 100-metre section, using sprayed concrete lining to ensure its long-term structural stability. A team of 20 workers will be on site each day, and more than 400 hours of socially inclusive employment will be delivered, combining technical performance with social responsibility. The works began on 28 July and will continue until December on weekdays during daylight hours, allowing peak-time passenger trains, weekend services, and overnight freight traffic to operate on this crucial route.
Three other major projects are being carried out in Côte-d’Or and Yonne, focused on modernising the electrical systems between Dijon and Baulme-la-Roche until December. The EUR 18.7 million operation, financed by SNCF Réseau, includes the replacement of 414 masts supporting the overhead electric wires that supply power to trains. The work will be conducted using a pioneering, French-designed overhead line factory train, an innovative machine that is six times faster than traditional methods and greatly enhances efficiency and speed.
On average, 130 workers and 15 companies will be involved in this large-scale effort, which will result in scheduled daytime closures of the network.
The national Centralised Network Control programme (Commandes Centralisées du Réseau – CCR) aims to digitise and centralise rail traffic management via regional control centres, functioning as railway “control towers.” For the Bourgogne–Franche–Comté region, the control centre is located in Dijon. Within this framework, a signalling upgrade project is ongoing between Fain-lès-Montbard and Nuits-sous-Ravières.
The works started in 2022 and are expected to be completed by mid-2026. In 2025, SNCF Réseau is contributing EUR 22 million to this project, which has a total budget of EUR 118 million.
Share on:
