Anecdotal evidence is that Martin Luther King Blvd. in many cities is in the heart of the ghetto.
I’m sure there are other indicators such as avoiding Martin Luther King Blvd., used by people, to enable them to avoid certain areas.
Since your life is in danger if you wander into bad neighborhoods, this app makes sense to me.
Early President named streets seem also to be in bad inner city areas..Washington, Adams etc.
We just returned from a trip to Chicago..and had our GPS guiding us..we would like it to have such an ap that let’s you know when you enter a high crime area.
In Chicago that can be just across the next intersection.