Matrix tunnel signs
Matrix signs for tunnel show text information or indicate a hazard ahead on the road that may not be readily apparent to a driver. Size, text and symbols are custom made.
Predefined tunnel signs
Predefined signs for use in the tunnels are TRS-SD45. This signs usually consist from two parts, one of them shows speed limit and the second shows a certain commands.
Lane control signs
Directing or forbidding the passage of the vehicles in the tunnels. Possibility of two or three LEDs rows. Possible shows: green arrow (free passage), red cross (forbidden passage), yellow arrows (directing towards left or right side of the road)
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