Preparation for renewing metro lines 2 and 6 signalling and design of technical rooms

Summary

The tender concerns preparation for renewing the signalling systems on metro lines 2 and 6, together with design and supervision services for constructing underground technical rooms. The work covers 26 stations, with an average of four technical rooms to be planned at each station for new equipment such as signalling and door-control systems. The service provider will prepare plans, carry out stability calculations for new structures where applicable and assess their impact on existing structures, prepare bills of quantities and a feasibility study, and conduct topographic surveys. The provider will also check the positioning of the structures before, during and after construction; 3D scanning may be required if considered necessary. Tenders must be submitted electronically by 10:00 on 16 November 2026 and remain valid for 200 days. A security equal to 5% of the total tender amount excluding VAT is required.