Avoid Crime via GPS

I had recently seen a video on YouTube that mentioned this sort of technology, and I thought it was interesting so I looked a bit more around the internet to see what I could find.  Apparently, certain GPS' and downloadable content is available to alert you when you approach high crime areas and re-route you accordingly.

More particularly, there's CrimeFind for GPS in Chicago.  CrimeFind for GPS uses your proximity alert function of your GPS to alert you while you are driving, when you approach areas of the city with a higher than average crime history.  It uses crime incident data for violent crimes. Violent crimes are: Homicide, Aggravated Assault, Robbery, Aggravated Robbery.  Incident data over the past 12 months is used.

This is a proximity alert file that you install on your GPS.  The file already contains the alert radius, therefore, you install it without setting your own alert distance.  This is done because the alert radius varies with each census tract depending on the census tract size.  The alert radius is used to coincide with the census tract size.  As you drive, when you approach a census tract with average violent crime over the past 12 months greater than 3 times the city average, your GPS will alert you so you are informed.  The crime rate (i.e, "4X") is displayed along with the census tract number.  Each census tract is an individual POI within the file, so you can also plan ahead and search "along your route" for the CrimeFind POI to know whether your proposed route will take you into, near or through a high crime area.  Any high crime census tracts will show "along your route" just as a gas station or hotel can be displayed "along your route."

 Is this feature a good idea?  Tell me some of your opinions on this topic in the comments below.  As always, thanks for reading!