[dmix]

You could prioritize high-crime and high-traffic areas, ignoring most boring residential streets. A bike currier could probably get pictures of 90% of them in a weekend.

Or crowd-sourcing people to contribute photos from their neighbourhood and whenever they're out walking around.

A mobile app which:

a) captures GPS location and a photo upload

b) browse pictures like Tinder (with high-res zoom) and upvoting/commenting on ones you think are likely

c) browse (likely) utility poles near your location