Copyright (c) Hrvatske autoceste održavanje i naplata cestarine d.o.o. 2015.
About the tunnel
In extensive research that included many European countries Hrvatske Autoceste were awarded an international award for tunnel safety for Sveti Rok tunnel.
After Brinje tunnel was proclaimed the best tunnel in Europe in 2007, in 2010 within the European Tunnel Assessment Program (EuroTAP) Sveti Rok tunnel was proclaimed the third best tunnel among 26 tunnels from 13 European countries. This great award would not have been awarded hadn`t it been for great efforts of the trained staff working on tunnel safety that is on call 24/7. Hereinafter you can read more information about the tunnel.
Sveti Rok tunnel is a double-bore tunnel located on the Sveti Rok - Maslenica Section on the Zagreb - Split - Dubrovnik Motorway. The length of the left tunnel tube is 5,679 m and the length of the right one is 5,670 m. The traffic flow runs through both tubes, separately for each traffic way.
The north tunnel portal is placed at 561 m above sea level and the south portal at 510 m above sea. The maximum permissible speed limit is 80 km/h, and the lowest permissible is 50 km/h. The tunnel passes through Velebit in the corridor of Mali Alan mountain saddle. An interesting fact worth mentioning is that an approach road to the tunnel was built as early as 1832 under the direction of Major Josip Kajetano Knežić. This road runs from the tunnel location via Mali Alan and Tulove Grede to the village of Sveti Rok. The tunnel was built by New Austrian Tunnelling Method (NATM) which was proven efficient in different geological conditions encountered along the route.
The tunnel is equipped with the state of the art video surveillance and traffic control system and traffic regulation and surveillance is conducted 24/7 from the Sveti Rok Maintenance and Traffic Control Centre (MTCC). Video cameras connected to the monitors in Sveti Rok MTCC were installed throughout the tunnel. These cameras also ensure automatic detection of congestion, traffic in forbidden direction, identification of number, type and vehicle driving speed and they supply complete data to the highway patrol to obviate any bottlenecks. Motorists in the tunnel are given necessary information by warnings or restrictions issued through variable message signs.
The tunnel users have a communication system for emergency situations at their disposal which in the event of break-down or incident may be used to call for the tunnel operator`s help. There are 38 recesses in the tunnel equipped with emergency phones, fire alarm devices and manual fire alarms. The broadcasting system ensures radio communication between radio-stations in the tunnel and outer radio-stations as well as the transmission of one or more public radio programmes and for issuing notices to motorists that listen to such a programme when passing through the tunnel. For the purposes of traffic incidents there is a public-address system through which necessary information and instructions to motorists are given. The use of mobile phones is also made possible and the passengers are advised via radio transmitters at the frequency HR 2 - 98,2 MHz. There are four U-turns spaced at 1,150 m. Emergency escapes spaced at 350 metres are designed as a connection between the two tunnel tubes. They are fifteen such escapes in the tunnel. There are altogether twelve lay-bys for vehicles in the tunnel whose width is 3 m and length 40 m. They are placed at every 500 metres.