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> any idea what sort of accuracy you’re getting at the end of the process with respect to things like carriageway widths?

Good question! I'll go out there later today and get an on the ground measurement and get back to you on this thread (and upload the blog post).

> great tool for advocacy groups to identify where a road is wide enough to accommodate cycle lanes

Agreed :D

I added a section on taking measurements (under heading "Output accuracy: taking measurements"), it's pretty damn accurate!

Large path:

- OpenDroneMap: 4.54 metres

- Tape measure: 4.56 metres

Small path:

- OpenDroneMap: 1.89 metres (though this varies slightly due to distortions)

- Tape measure: 1.89 metres

> I was just wondering if it’s possible to get the +/- 10cm accuracy

I'm quite confident this is possible - maybe do a few sanity checks though!

Brilliant, thank you so much. Impressive numbers!