ETF is modernising the signalling and infrastructure on the Moret–Montereau line
ETF has been commissioned by SNCF Réseau between September 2024 and June 2026 to carry out a complete upgrade of the civil engineering and railway signalling infrastructure between Moret-Veneux-les-Sablons (77) and Montereau-Fault-Yonne (77) stations, covering a distance of 11 kilometres.
New facilities to ensure the line’s long-term viability
This project aims to refurbish a facility that has become dilapidated, in order to ensure the long-term reliability of operations on this strategic transport route in the southern Île-de-France region.
Teams from the Civil Engineering/Signalling (GC/SIG) agency carried out work to replace the automatic light-emitting signal units (BAL). The works involved refurbishing the signals, replacing the optical light-emitting signal units, refurbishing the existing installations and replacing nearly 11 kilometres of high-voltage and signalling cables.
The civil engineering teams began work by laying trunk sewers, installing high-voltage cables and constructing the platforms that now house the new shelters.
The signalling teams then took over to ensure that the old signal boxes were replaced by the six new shelters. This new, modern equipment extends the lifespan of the communications systems but, above all, provides safer working conditions for the maintenance teams.
A project that can adapt to the situation on the ground
The site’s location, on the banks of the Seine and close to areas subject to the highest recorded water levels, required careful technical adaptation. The civil engineering teams therefore constructed a higher, custom-built platform for one of the shelters. Several geotechnical surveys were carried out to precisely characterise the nature of the ground and determine the dimensions of the concrete slabs. These analyses ensure the stability of the structure.
In one section of the site, to address the terrain constraints, an L-shaped wall was erected to retain the earth and secure the technical platforms.
A project aimed at improving the performance of the rail network
The main objective of this project was clear: to ensure the continuity of train services, reduce breakdowns, minimise cancellations and improve the punctuality of services. The refurbishment of the level crossings, carried out jointly by teams from ETF and SNCF Réseau, also contributes to improving local rail and road safety.
By carrying out a comprehensive modernisation of this ageing facility, this project is fully in line with ETF’s strategy to support SNCF Réseau in ensuring the performance, robustness and sustainability of a sustainable network that is accessible to all.