I'll admit that I don't know a way to readily get information about the bad parts of cities that I'm traveling through but I'm not familiar with. If you have friends or relatives in the town you can use them. Otherwise it's not a factiod that I've found easily.

I don't see maps or GPS having an advantage over the other.

Does anyone know a relatively easy way to find information about more trouble prone areas?
_________________________
"There is not a man of us who does not at times need a helping hand to be stretched out to him, and then shame upon him who will not stretch out the helping hand to his brother." -Theodore Roosevelt