A12 Roppener Tunnel
General electrical engineering
Construction and refurbishment of Roppen Tunnel
The existing first tube of the Roppen tunnel (north tube) was operated in opposing traffic. This means in today‘s heavy traffic load, a threat to the smooth running traffic. To increase the safety of the A12 Inn Valley motorway the expansion of the Roppen tunnel was carried out to a modern, twin-tube tunnel system. In order to improve the safety standard of the entire tunnel system, after the construction of the second tube, the existing first tube was adapted as well.
Complex ventilation and traffic control
A fire inside the tunnel is a horror scenario and the ventilation and traffic control system has to fulfil high requirements. Besides a fast localisation and detection of the fire, complex programmes are of paramount importance for the regulation of the traffic and the tunnel ventilation. In case of a disaster these programmes automatically initiate actions that are of vital importance for the safety of the drivers.
36 light regulators
48 traffic signs
62 LED-variable message signs
12 info displays
172 CCTV cameras
95 emergency roadside telephones
45 speakers & amplifiers
52 local control units & 46 switches
181 km energy wiring & 130 km control wiring
97 km fiber optic cables