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July 15, 2019


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

New research from Belgium conclude that mobile fans can be used for controlling smoke in tunnels. However there are limitations on how effective mobile fans is, but also the conditions that which is the basis for research. However mobile fans are so much more than a single fan, it can provide additional water, have adjustment options in height and be used to move vehicles and debris.  

Last week, in the well-known Applus+ "San Pedro de Anes" Experimental Centre, we where presented the latest design within ventilators and explained how a proper design can optimise the airflow. Not only will a optimised design save costs, but also increase safety, says Dr. Fathi Tarada. 

To facilitate human evacuation and emergency responder safety, the National Cooperative Highway Research Program (NCHRP, US) recently published guidelines for emergency ventilation smoke control in roadway tunnels (2017). 

The air velocity in tunnels is important in a tunnel management system and a crucial part of ventilating in both a normal situation and when a fire incident occur. The quality of the output from the automatic control in the SCADA system and decisions that has to be made by the traffic Control Centre is only as good as its sensors.

20 - 23 February 2018, Gdansk, Poland.                          

Providing a safe and sustainable winter road service and a focus on new challenges and experience gained in winter road and motorway maintenance is the topics for this winter congress. Representatives of various levels of government administration, associations and road agencies, European and World experts, as well as academics and equipment manufacturers have an opportunity to develop common standards, based on varied experiences and many years of practices, and enter into close bi- and multilateral cooperation. 

12 - 14 June 2018, Graz, Austria.                          

This international symposium offers the possibility to exchange knowledge and to gain deeper insight into the newest developments in the fields of ventilation, risk analysis, system tests for the commissioning of road and railway tunnels, operational experience of road und railway tunnels and refurbishment and upgrading of tunnels under operation. 

Its improtant for any tunnel operators to lower the costs and improve energy efficiency, especially on cost consuming technical facilities as Ventilation systems. The reversible MoJet® tunnel ventilation system typically enhances by 25% the in-tunnel aerodynamic thrust compare to other jet fans.  

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.

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