I would say it's a little rougher toward the Nation Ford Road side as opposed to South Boulevard. Did a quick search for Fernhill Drive and Green Ivy Lane and it seemed fairly tame. As with any park any where, I wouldn't walk around there at night.
http://maps.cmpdweb.org/cmpdnet/quicksearch.aspx
You can search the exact address and see what calls police have received in the last month, year, etc. I think it goes back to 2007. That area is due for a comeback. The older houses are large and well-built and it is within walking distance of the light rail. Still, some of the apt. complexes near the Nation Ford side are a bit rough.
Non-aggravated Assault6 Hit and Run2 Larceny-Other2 Larceny from Building1 Other Criminal Charge1 Possession of Marijuana1 Vandalism1