datamap

Join: Roads near Noise

Count noise complaints near each road segment in Lower Manhattan.

Live Playground

OpenStreetMap data

This spec reads a pre-downloaded OpenStreetMap extract through pbfFileUrl, so it loads in seconds. Remove pbfFileUrl to query the Overpass API live instead, which can take several minutes because Overpass is rate-limited.

Highlights

• near join onto line geometry
• thematic road layer with getFnv

This example comes from the autk-grammar repository.