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German traffic lights powered by Linux and real-time Java

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A major European vendor of city-wide traffic management systems is porting its flagship traffic light controller to Linux and real-time Java. Signalbau Huber says its Actros controller will better meet safety-critical requirements after moving to Sysgo ELinOS/PikeOS 4.1 with Aonix’s PERC real-time Java runtime.

Currently, Signalbau Huber’s Actros controller is based on Debian GNU/Linux 3.2. Versions based on the new software implementation are expected to begin testing by year’s end, according to Joachim Lock, R&D engineer. “The migration will enable us to move from several different CPUs to one CPU, [while] keeping security-critical functions and Linux separated,” he explained.

Lock describes Signalbau Huber as one of Germany’s two largest traffic managment system vendors. He said the company’s systems are used in Frankfurt, Stuttgart, Prague, Budepest, Vienna, Poland, Warsaw, and Benelux, among other European locations.

Signalbau Huber’s installations comprise one or two central traffic management systems per city.

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