The contract consists of renewing the ventilation and smoke extraction equipment in the safety niches and transfer stairs of the A86 Duplex, Rueil Malmaison – A13 section, tunnel operated by COFIROUTE.

The contract is a framework agreement with purchase orders.

Variants are not accepted.

The services to be carried out are:

- Studies and renewal of ventilation and smoke extraction equipment for 18 Safety Niches, Transfer Stairs, 3 Ventilation Unit, 3 Emergency Wells and Emergency Exit IS1 and IS3

- The renewal of passive equipment such as cables (about 1km) and ducts (about 150ml) for VL1

The interventions will be carried out under exploitation and in traffic zones.

The services will be performed by means of a framework agreement with purchase orders for minimum and maximum amounts.