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    October 6, 2026

    NEW ISSUE: Read the October 2026 edition of TTi magazine online now!

    ITS By Tom Stone
    Recent

    NEW ISSUE: Read the October 2026 edition of TTi magazine online now!

    October 6, 2026

    NEW ISSUE: Read the July/August 2026 edition of TTi magazine online now!

    July 23, 2026

    NEW ISSUE: Read the April/May 2026 edition of TTi magazine online now!

    April 21, 2026
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Traffic Technology TodayTraffic Technology Today
Variable Message Signs

ITS ISTANBUL VIDEO: Cable-free, stand-alone, smart VMS from Triplesign

Tom StoneBy Tom StoneApril 28, 20261 Min Read
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Triplesign is evolving its VMS by delivering smarter signs that are able to change their display based on any sensor input, while also being completely standalone from any power supply — operating with only a solar panel and small internal battery, meaning they can be deployed in almost any location. Here Karen Koelma tells TTi editor Tom Stone more about how the technology works, at the ITS European Congress in Istanbul.

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Tom Stone

Tom has edited Traffic Technology International (TTi) magazine and its Traffic Technology Today website since May 2014. During his time at the title, he has interviewed some of the top transportation chiefs at public agencies around the world as well as CEOs of leading multinationals and ground-breaking start-ups. Tom's earlier career saw him working on some the UK's leading consumer magazine titles. He has a law degree from the London School of Economics (LSE).

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