Safety-related Variable Message Signs in Traffic Control applications

Thomas Novak, Christoph Stögerer

Research output: Contribution to conferencePaperpeer-review


Traffic Management Systems are used for propagating information from a Higher Order Control Unit (HOCU) to the traffic participant. In today’s systems the user interface to the traffic participant is provided by actuators such as a Variable Message Sign (VMS). Information can be either non-safety-critical (e.g., traveller information, route information, congestion warning) or safety-critical (e.g., lane-control signs, variable speed-limit signs). Latest national and international standards prove the trend towards an increased demand for safety in such devices. These safety requirements need distinct measures in hardware as well as software. This paper presents a general approach to a safety-related VMS integrated in a traffic management system according to the standards EN 50556 and VDE 0832.
Original languageEnglish
Number of pages8
Publication statusPublished - 2012
Externally publishedYes
Event19th ITS World Congress - Wien, Austria
Duration: 22 Oct 201226 Oct 2012


Conference19th ITS World Congress


Dive into the research topics of 'Safety-related Variable Message Signs in Traffic Control applications'. Together they form a unique fingerprint.

Cite this