If It Comes With A Gagging Clause, It's Not Open Data

One of the richest seams of open data concerns transport. After all, by their very nature, transport systems generate huge amounts of new data every day -- times, routes, travel options. Similarly, huge numbers of people use multiple means of transport, which means there is a big potential audience for analyses of that data. And it's definitely in the interest of transport operators to make that information freely available so that developers can use it in new ways, since that is likely to make traveling easier, and lead to increased custom. 

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