node-topojson - 1.6.27+~cs15.24.118-1.1 main

node-topojson is an extension of GeoJSON that encodes topology. Rather than
representing geometries discretely, geometries in TopoJSON files are stitched
together from shared line segments called *arcs*. TopoJSON eliminates
redundancy, offering much more compact representations of geometry than with
GeoJSON; typical TopoJSON files are 80% smaller than their GeoJSON
equivalents. In addition, TopoJSON facilitates applications that use topology.