Mass transport data is some of the stickiest content out there for digital signage screens. It's information people tend to want and need, and they'll habitually look at screens to get it.

Tapping into the open data from one transport authority, to show it on screens, is relatively easy. It gets more complicated when you want to show data from multiple systems on a screen, and it gets quite complicated when the signage network wants to run data specific to different cities and different transit systems.

It would be a bear for a software or solutions company to take on, which is the attraction of a Brooklyn-based service called Roadify - which aggregates all that data from different systems and presents it all in one structured format, using its platform and running off a subscription model.

The service is similar to some of the news, weather and sports feed aggregators that have long operated in this sector, except the content is quite different. I spoke with founder and CEO Scott Kolber about the roots of Roadify, and how his company's services are being used.

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