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May 20, 2019


 Road tunnels and technology in an operational perspective
Arild Petter Sovik, Tunntech Global News

20 - 23 March 2017, Amsterdam, Netherlands.                                 

The intertraffic attracts manufacturers, importers and agents of products and services of infrastructure, traffic management and safety. 

In this report presents SP Technical Research Institute of Sweden the main results of the six large-scale tests with different types of fixed firefighting system (FFFS) that were carried out in the Runehamar tunnel in June 2016.

New radio broadcast technology have made it necessary to rethink how roadsigns for radio broadcast should be designed and function. 

Tunnel operators face the challenge of illuminating the tunnels evenly according to given specifications and controlling the intensity depending on the situation. Its now available systems that enables operators to visualise system status and the condition of the light, in addition be more energy efficient and save costs. 

IDA Tunnel, software from EQUA Simulation AB, allows the engineer to simulate road and rail tunnel design projects, including full range of ventilation and fire design tasks. The software delivers now improved algorithms that increase robustness and speed to the simulations so that computed results can be animated in the context of a full 3D representation of the tunnel network.

When a given event is to be handled, the operator must seek information in a variety of sources and decide what information is relevant. Its important to treat this information in a smart and secure way to ensure the right actions. 

How will the implementation of autonomous and cooperative car technology effect management, operation and safety in tunnels. And what issues have to be considered when it comes to tunnels? The purpose of starting a work with Intelligent Traffic Systems (ITS) station concept has been to establish a method of communicating between tunnel and vehicle using a standard platform.

Norway is first to close down the FM broadcast in favour of Digital Audio Broadcast (DAB) technology. A bold decision that have raised a lot of questions about installation, reception conditions and safety issues for the road users. About 40% of the radio listening is from a car in Norway. DAB will therefore not be a full range of radio offer without reception conditions in the tunnels.

To make portal area more traffic safe, there has been a desire to look into systems to prevent icing. This study shows that a snow melting heated pavement system can have promising prospect for extensive application.

The point cloud created by the laser scan is mainly used to evaluate the conditions of the pavement but can also be used to gather data from the side area and the tunnel walls. The report from such a scanning gives the necessary data for analysis and give the tunnel operator a chance to follow up the development of the road surface, the rock conditions and the construction, from one year to another. 

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