OpenStreetMap mapping progress in and around Batticaloa, Sri Lanka (7°43′0″N 81°42′0″E) since May 1, 2013.

The progress made in mapping was impressive, with the entire Batticaloa area traced and on the ground information being added at the time of this posting. This ongoing mapping effort is a part of the Open Cities Project, seeking to unlock OpenStreetMap’s potential for urban planning and emergency preparedeness.

The checker board pattern showing in the visualization is a result of the use of the HOT Tasking manager, where contributors claim tasks as square-shaped areas.