Siemens Mobility joins #FREEtheMIBS open data campaign


Siemens Mobility has joined the FREEtheMIBS Campaign advocating for open sharing of proprietary management information bases (MIBs). Siemens Mobility is now the second traffic controller manufacturer to make its MIBs available to any interested agency, vendor or researcher.

Often kept proprietary by each manufacturer, MIBs are the common language protocols used in communication between central traffic management systems and ITS devices including traffic signal controllers.

Traditionally, by keeping their MIBs proprietary, some manufacturers believe they can extend contracts for years, locking out more cost-effective and innovative equipment that cannot communicate with legacy equipment.

Tom Stiles, founding partner of #FREEtheMIBs, called the move “a defining moment.” He says, “Having Siemens Mobility join the campaign represents significant momentum in the fight for open standards – and an open, more competitive playing field for the industry.”

“As a company that supports the concept of open architecture and protocols, it makes sense for us to be part of this,” says Marcus Welz, CEO of Siemens Mobility’s Intelligent Traffic Systems for North America. “We believe this will provide more seamless communication, foster innovation and help everyone access stronger safety and mobility applications.”

The #FREEtheMIBs campaign began late last year and has already generated significant traction and attention with advocates from state departments of transportation, now joining with private sector organizations and transportation leaders to promote open standards.

For more information on the campaign or to download Siemens’ traffic controller MIBs, please visit

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About Author


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).