Plabutschtunnel

The approximately 10 km long ( east tunnel, 9,919 m, west tunnel 10,085 m) Plabutschtunnel, which leads through the hills of the Buchkogel and Plabutsch on the western outskirts of Graz, is a section of the Austrian Phyrn motorway A9, based on a length of 230 kilometers from the node Voralpenkreuz ( Sattledt, Upper Austria ) to Graz and up on the game field (Styria ) extends to the border with Slovenia. The tunnel leads from the Graz - Webling in the south of Graz to Gratkorn north of Graz.

The tunnel relieved the old guest worker route, connecting the Balkans with Central Europe and a lack of alternatives ran directly through Graz.

The originally planned route of the A9 should lead on the edge of the ridge by the west of Graz. The so-called " Eggenberger route " met with fierce resistance, because it should lead right through the district of Graz Eggenberg, especially since even then the traffic was considerable. The popular se, equipped with an absolute majority mayor Gustav Scherbaum ( SPÖ) lost the Graz municipal elections of February 25, 1973, because he had to check the signature lists of citizens' initiative for a referendum on a large scale. The Graz FPÖ and ÖVP had, however, joined the concerns of the citizens' initiative. As a result, it came to the formation of an ÖVP -FPÖ coalition at the local level and to fix the path by Plabutsch (begun August 4, 1980 ). The tunnel was first with only a two-lane tube, the east tunnel, built and opened on 27 June 1987. A routing as originally planned, would have brought relief for the urban target traffic with it, especially the strongly by commuters loaded Eggenberger Gürtel and the Kärntner Straße shopping street, as the existing Plabutschtunnel features except the two tunnel portals, no additions and departures, he relieves the target traffic do not.

At the beginning of the 21st century, the construction of a second tunnel was started. The first plans for the establishment of Plabutschtunnel - west tunnel began in 1996. The groundbreaking ceremony took place on 19 July 1999. After four and a half years of construction, the west tunnel on 30 January 2004, was opened to traffic. The around 16 years longer in-operation east tube was placed in the period from February to November 2004 on the safety state of the (newer) west tunnel.

The tunnel can be used two Roehrig, each with two lanes since 17 December 2004. He is the second longest twin tube tunnel in Europe (after the Gran Sasso tunnel in Italy). 2004 rolled around 23,000 vehicles a day through the tunnel. After commissioning of the twin-tube Plabutsch tunnel drive on it every day around 30,000 on peak days up to 41,000 vehicles.

The safety of road users was in setting up the tunnel in the foreground. He is considered one of the safest road tunnels in Europe. The tunnel control room at the south portal of Plabutsch tunnel was equipped with the latest technology, including six large-area monitors. The control panel is designed for a two-man operation. As a rule, however, monitors and controls a tunnel waiting the entire system.

The main tunnel safety features at a glance:

  • The road is designed as a concrete ceiling.
  • 13 additional walk- cross passages that serve as escape routes to neighboring tube.
  • 2 Notausfahrten: Baier road and Krottendorfer road.
  • All 106 meters a fire niche ( 87 ) and tunnel extinguishing systems in all nine stopping bays.
  • All 212 meters an emergency niche, equipped with the emergency telephone, two portable fire extinguishers as well as at the front, each with an emergency call and fire alarm button.
  • Continuous fire alarm sensors in the tunnel driving space ( FibroLaser II).
  • Full cross-ventilation with six ventilation sections per tunnel.
  • Ten each supply and exhaust equipment.
  • 90 air shutters (twelve square meter) at a distance of 106 meters, which specifically can be sucked over the fire smoke.
  • Continuous monitoring with TV - cameras (controlled by the tunnel waiting Plabutsch ) with central image recording and image analysis.
  • Tunnel radio for emergency responders, maintenance and traffic information supply.
  • Continuous, light reflecting four meters high coating.
  • Bright halos to interrupt the monotony tunnel.
  • Curb reflectors on the left and right edge of the roadway.
  • Improved escape route lighting to seeking help indicate a recommended direction of escape can.
  • Backup power supply for emergency lighting, escape route lighting as well as for the control and surveillance systems.

The two Notausfahrten lead in the urban area of ​​Graz: The northern over the Jägersteig in the street Baier (Graz - Eggenberg ), the southern of the Bruendl alley in the Krottendorfer road (Graz - Wetzel village).

Southern emergency exit, tunnel

Southern emergency exit, access

Northern emergency exit, portal

Northern emergency exit, tunnel

Northern emergency exit, access

Furthermore, the tunnels are also used for additional purposes. For example, a Notwasserleitung to supply the Eastern, Southern and Western Styria through the western tunnel.

On 3 October 2011, a section control was put into operation in order to minimize accidents in the tunnel and to prevent speeders. The operation for over half a year, according to police zeitigte a decrease from 100 to 15 tempo offenses per day.

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