Yeah there are only 24 hours in a day, so the right metric might be density of crimes in an area per hour. Even if I’m not the victim of a robbery, I don’t really want to be watching it from across the street.

> I'd also be pretty interested in avoiding P(a crime occurs near you), especially as a tourist

What counts as nearby also scales with density. Down the street is nearby in the suburbs. In New York the next avenue block may as well be another town.