• According to Directive 2004/54/EC of the European Parliament on safety requirements for tunnels, following recent accidents underline their importance from the standpoint of human, economic and cultural.
• Some of the tunnels in Europe, put into service long ago, were designed at a time when technical possibilities and transport conditions were very different from today. There are thus disparate safety levels that must be strengthened.
• Safety in tunnels requires a number of measures relating, inter alia, to the geometry of the tunnel and its design, safety equipment, including road signs and traffic management.
• The real problem for the traffic in the tunnel is formed by the low light of the concrete walls.
• Under the regulations, the brightness of the walls must be equal to the roadway. Concrete is subject to absorb dust and soot from the combustion of waste vehicles, its surface and in itself gray become darker over time; No illuminated, albeit powerful, you get the required performance.
• The driver, crossing the threshold of a tunnel entrance, is in this way with a dark and undefined.
• As the coating can be described as a safety in the tunnels of the following conditions:
• Significant increase in luminosity with consequent energy savings.
• Visual guidance to the user
• Elimination of black hole
• Reduces possible detachment of the walls, ceiling and roof on the road.
• Complete uniformity in the tunnel section.
• Optimizing the performance of ventilation equipment
• Waterproofing of the walls
• Possible pipeline leaks.

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