This is cool, however there is an implicit assertion here that better lit = safer. As far as I can tell this is questionable at best, a decent roundup of studies can be found here https://www.washingtonpost.com/news/wonk/wp/2017/11/02/what-...
He concludes crime goes up because we have a connection to the full moon rather than the extra lighting.
His article was written decades ago. I suspect today he'd change that idea given the better data available.
Personally I think adding lighting to cities makes personal safety far better. I get what the studies are doing but I think they are relying on novelty to get published over boring.
But certainly you have to watch putting someone down a well-lit underpass over crossing a not so well-lit busy road.
I think the value to the data is for councils to find where lighting should be improved. Plus there's also more to safety than just crime.