Excavation work :
- Trench digging
- Track and road crossings
- Under-track crossings involving plans P1/P2
- Channel systems
- Channel laying
- Deployment of local and trackside cables
- Laying of underground earth cables in safe mode
- Foundations for signals, railroad-crossing mechanisms
- Creation of platform for control cabinets, signalman cabins, accumulator cover, etc.
- Excavation and installation of concrete posts
- Signal foundation sealing and signal bridge
- Signal box caulking
- Installation and removal of ESS