Are speed camera zones about safety or revenue?

I spent Tuesday at Hacks & Hackers Hack. Organised by Scraperwiki, and sponsored by the Guardian Open Platform, NUJ Dublin Freelance Branch and Innovation Dublin, HH&H was a one day exercise uniting Hacks (journalists) and Hackers (computer coders) to extract data from public databases. Since the introduction of safety camera zones has been in the […]