OpenStreetMap is a web project built entirely by volunteers surveying with GPS, digitizing aerial imagery, and collecting and liberating existing public sources of geographic data.
Openstreetmap ni mradi wa kimatandao, uliotengenezwa kwa watu wa kujitolea ambao wanfanya survey kwa kutumia GPS, wanahariri picha ya anga na kukusanya na kuhalalisha shughuli zilizopo za uma kwa kutumia taarifa za kijografia.