As indisputable the role of LED VTS in traffic may be, their rule-compliant use is currently intensively discussed. The physical and optical requirements as well as the corresponding testing procedures are fixed by EN 12966 from the year 2009. Furthermore, application-dependant requirements must be observed. For instance, a higher luminance on motorways or a greater radiation spectrum for the use in cities.
Confusion is caused by a second version of EN 12966 from the year 2014 and 2019, which unfortunately has already been published. However, to date, this version has not been confirmed by the EU. Therefore, no testing authority can be accredited to certify variable traffic signs on the basis of the new version. Therefore, since the market leader Nissen has driven forward the introduction of the LED technology in terms of mobile traffic securing by its pioneering innovations, and with its Vario Sign LED system, offers a ground breaking solution, everyone at Nissen is viewing the situation with a reasonable degree of calmness. This system includes VTS with a special reflective glass and also those with a patented lens technology, which offer a variety of benefits.
"Our customers want standard-compliant solutions", Sales Director Jan Vogt says, "therefore, our products are currently developed and manufactured in compliance with the only valid standard EN 12966 from 2009, and of course we are prepared and can adapt for any changes in the future ."