I recently wrote about using the JOSM Conflation plugin to identify traffic lights in OSM missing from the TfNSW’s open data.

Now TfNSW have released some data on enforcement cameras, so I’ll try again using JOSM.

1. Download the CSV data
2. Rename the Lat (1) and Long (1) headers to Latitude and Longitude. 3 Open the CSVs in JOSM.
3. Select all the imported nodes from the Fixed Speed Cameras and replace all the tags with highway=speed_camera
4. In JOSM, download existing speed cameras as a new layer from overpass with ((type:node and https://wiki.openstreetmap.org/wiki/Tag:highway=speed_camera) or (type:relation and https://wiki.openstreetmap.org/wiki/Tag:enforcement=maxspeed)) in "NSW, AU"

5. Conflate

6. Select all the nodes from Red Light Speed Cameras, and replace all the tags with highway=speed_camera
7. Conflate again.