Radio is the form of communication which serves our mobility and safety. Unfortunately, a tunnel often interrupts the flow of communication and consequently the safety of staying in contact with the outside world.
Center Systems has therefore developed a tunnel radio system which continues all popular radio systems even in tunnels, thereby making an important contribution to traffic safety. During accidents and disasters, Center Systems’ tunnel radio ensures the rapid and perhaps even life-saving connection to the outside. When operating forces risk their lives during a fire, the continuous and trouble-free radio connection between the rescue teams and the free field can decide over life and death.
In addition to this, it is possible to transmit information to the road users in the tunnel directly by way of implemented FM/DAB broadcast programme. Mistaken actions and panic can be avoided.
The Center Systems tunnel radio systems are connected to existing free field networks so that radio communication in the tunnel works as well as outside the tunnel.
Through the modular structure of the Center Systems’ tunnel radio solutions, it is possible to realise many different connection versions. To achieve the required field strength levels, transponder or frequency repeater technologies with broadband, band selective or channel selective amplification can be employed.
Modern road and rail tunnels require a multiplicity of safety measures. The technologies of Center Systems support these dispositions by latest detection algorithms as well by video management solutions.
VTBC tunnel was conceived for these high requirements and contributes to the improvement of traffic safety as well as to the effective advancement of traffic flow.
The long-time experience of Center Systems in pattern detection has born a modern system architecture, which is employed by existing infrastructure as well as new established tunnels as platform for future leading system. Furthermore, already installed camera systems, wire connections or complete signages can be integrated by this customize technologies. Visit www.centersystems.com
Austria
In Brixen im Thale (Tyrol) on the stretch between Wörgl and Kitzbühel, a new encasing with two tunnels is being constructed to relieve the town of Brixen. The tunnels are designed as two-way traffic tunnels with a length of 419 m and 1,280 m. The middle of the 1,280 m tunnel has an emergency exit and two emergency staircases. Strabag has commissioned Centre Systems with the supply and installation of the tunnel radio system. Center Systems supplies the tunnel radio control centre, as well as five booster stations. The feeding of the booster stations is star-shaped via OWG. Also fed, aside from the 1,280 m-long main tunnel, is the 419 m-long tunnel, the emergency exit, as well as the emergency staircases. Integrated in the system will be the new digital radio (Tetra) for the authorities. Also the entrance areas will be set up for the digital radio for the authorities and for breathing protection.
Croatia
Seven tunnels on the motorway between Zagreb and Rijeka in Croatia are being currently repaired and partly made into a dual-tunnel motorway. The tunnels are of varying lengths (611 m, 1,462 m, 868 m, 580 m, 740 m, 824 m and 2,141 m).
Under its contract with TEB Inzenjering based in Zagreb, Center Systems is planning, supplying and installing the tunnel radio system for this chain of tunnels. Center Systems’ tunnel radio control centre is located in the town of Delnice in the mountainous section of Croatia, to the east of Rijeka. The tunnels are fed star-shaped via OWG (optical waveguides) from the centre in Delnice.
In total, Center Systems supplies the tunnel radio centre, 14 booster stations, as well as 15 km of waveguide cables to feed the tunnel. For monitoring and transmitting of fault messages to the overriding control system, Center Systems uses the newly-developed cable monitoring system “CPM 3000”.
Slovenia
Center Systems was appointed general contractor for the electrical engineering to supply the video surveillance system and the tunnel radio system for the Golo Rebro and Pletovarje road tunnels on the A1 in Slovenia.
The video surveillance system based on the VBTC tunnel technology detects and recognizes jams and standstill vehicles, wrong drivers, pedestrians in the tunnel and smoke.
A high-performance 15-day capacity storage system from Center Systems draws all cameras, three autonomous operator positions enable the control, surveillance of the video system.
Extensive interfaces for the process control technique complement the complex and modern complete system.
The redundantly established tunnel radio system enables the complete communication for the operation organization as well as the radio reception for the traffic participants. Visit www.avtoceste.si
Switzerland
Bulle is a capital in the district of Gruyère in the canton of Fribourg in French-speaking Switzerland. From 2009 the H189 will serve as a local relief road for the district capital and the nearby small town of La Tour-de-Trême. The core of this local bypass will be formed by a 568 m-long tunnel under the river Trême extended by cut-and-cover sections on each side (Les Usiniers, 125 m and Les Granges, 457 m) thus making a 1,150 m tunnel. The project also includes two cut-and-cover tunnels (Montcalia, 349 m and Planchy, 248 m). The bypass road will divert through traffic away from the city and facilitate accessibility to the skiing and tourist resorts of Château d'Oex, Jaun and Gstaad.
For this project, Center Systems supplies two tunnel radio boosters as well as a mini booster at the portal supply for the fire department. Also, the necessary feeders and radiation cables, pylons and aerials are included in the procurement. The system is prepared for the installation and transfer of up to 12 VHF channels, digital audio broadcasting (DAB) as well as the Swiss security mobile network's Polycom. Visit www.h189.ch 24/08.
