Drone parcel delivery matrix-based safety determination

A computer system comprising:

• one or more processors, one or more computer-readable tangible storage media, and program instructions stored on at least one of the one or more computer-readable tangible storage media for execution by at least one of the one or more processors to cause the computer system to:
• receive a message indicating a destination location for a drone flight;
• generate a first recommendation for a route from a departure location to the destination location for the drone flight, wherein the generating comprises:
• relying on multiple safety matrices representing a geographical area that includes the departure and destination locations, each safety matrix of the multiple safety matrices comprising respective rows and columns of numbers, each number representing a safety factor for a respective portion of a map that illustrates the geographical area, each of the multiple safety matrices representing a different vertical layer of a three-dimensional map;
• relying on a first analysis regarding a direct route between the departure and destination locations, the first analysis includes analyzing values of the multiple safety matrices along portions representing the direct route;
• wherein the route includes at least one change for an altitude of a drone flying in airspace, the at least one change for the altitude resulting in increased safety for the flight;
• in response to the first analysis indicating that the direct route has a safety risk exceeding a threshold value, relying on alternative route comparison that uses a respective summation of values of the multiple safety matrices along additional portions representing alternative routes, respectively;
• and
• selecting the first recommendation from the alternative routes based on the alternative route comparison, wherein the alternative route comparison weights a respective matrix value based on a respective length the respective alternative route passes through a map sub-region corresponding to a matrix position of the respective matrix value;
• and
• transmitting the first recommendation and the route to the drone to control the drone for the drone flight along the route including along the at least one change.

A computer program product comprising a computer-readable storage medium having program instructions embodied therewith, the program instructions being executable by a computer to cause the computer to:

• receive a message indicating a destination location for a drone flight;
• generate a first recommendation for a route from a departure location to the destination location for the drone flight, wherein the generating comprises:
• relying on multiple safety matrices representing a geographical area that includes the departure and destination locations, each safety matrix of the multiple safety matrices comprising respective rows and columns of numbers, each number representing a safety factor for a respective portion of a map that illustrates the geographical area, each of the multiple safety matrices representing a different vertical layer of a three-dimensional map;
• relying on a first analysis regarding a direct route between the departure and destination locations, the first analysis includes analyzing values of the multiple safety matrices along portions representing the direct route;
• wherein the route includes at least one change for an altitude of a drone flying in airspace, the at least one change for the altitude resulting in increased safety for the flight;
• in response to the first analysis indicating that the direct route has a safety risk exceeding a threshold value, relying on alternative route comparison that uses a respective summation of values of the multiple safety matrices along additional portions representing alternative routes, respectively;
• and
• selecting the first recommendation from the alternative routes based on the alternative route comparison, wherein the alternative route comparison weights a respective matrix value based on a respective length the respective alternative route passes through a map sub-region corresponding to a matrix position of the respective matrix value;
• and
• transmitting the first recommendation and the route to the drone to control the drone for the drone flight along the route including along the at least one change.