Customers would be able to see a map of 'risk zone' data for places they want to go, such as stores, restaurants and roads. They could then plan the day 'with an eye toward how risky such endeavors may be,' according to the patent application."
Want to drive a competitor out of business? Stage some "risky" things in his area.
And who gets to decide what's risky anyway? This could blow up tiny incidents to something that causes massive droves of people to avoid a store.
And yes, while this is already somewhat possible with today's internet, we don't have a central authority who decides what's risky, and certainly not one with money invested in inventing riskiness.