arboretum area running route

Are you staying at the Rennaisance?

I work out at 24 Hour Fitness in that area.  Sometimes I'll run up Jollyville Road and then use the gym for a shower.

You'll be very close to 360.  It has rolling hills with a wide shoulder.  But you will see a fair amount of traffic.

I used to live in that area.  Jollyville Road is a fairly good option for an out and back and will get you about 5 miles RT of flat running.  If you want some hills try this:  North on Jollyville Road, take a left on Floral Park, follow it to Rain Creek Parkway, Left on Rain Creek Parkway to Great Hills Trail, Left on Great Hills Trail back to Jollyville Road and the Arboretum (probably will be about 4.5-5 miles).  There are other options of these two basic routes - PM me if you're interested in others.  There is about a 1 mile loop within the Arboretum that you can also run if you don't mind repetition.