[expertio]

I have to say this is so cool! Police department could use this data to do roadside random breath test. And there will be less killer on the road.

[chronomex]

Thanks! Our original intention was to do exactly that, though we couldn't figure out how to do route planning with ArcGIS for more than one origin-destination pair at a time.

[jrockway]

Probably not. The number of people driving drunk is much lower than the number of people driving distracted or driving stupid.

[evolvingstuff]

There may indeed be more distracted/stupid people, but the inebriated ones cause about twice the number of deaths overall in the US:

http://www.cdc.gov/MotorVehicleSafety/distracted_driving/ind...

http://www.cdc.gov/MotorVehicleSafety/Impaired_Driving/impai...