<p>How about using augmented diffs from Overpass API to generate data? The API seems to work great.; but since augmented diffs from Overpass API will generate the changes on the fly, the increasing server load may be a concern.</p>
<p>AFAIK:</p>
<ul class="task-list">
<li><p>OWL generates and stores tiles as JSON for each changeset, faster to query, but extremely disk usage heavy</p></li>
<li><p>Overpass API generates augmented diffs on the fly for each minutely updates (so it requires to filtered by bbox and filtered out other changesets when used), system load may be a problem</p></li>
</ul>
<p>But IMHO using Overpass API is faster and easier to implement since it has already a working API and some great proof of concepts.</p>
<p>Working example for Overpass API:<br>
<a href="http://tyrasd.github.io/latest-changes/">http://tyrasd.github.io/latest-changes/</a><br>
<a href="http://overpass-api.de/achavi/">http://overpass-api.de/achavi/</a></p>
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