Identifying cost effective routes using vehicle fuel economy values that are specific to the roadway type

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

• identifying a starting location and a destination for traveling in a vehicle;
• accessing map data identifying multiple available routes from the starting location to the destination, wherein each available route includes one or more roadway segments, wherein the map data identifies a roadway type for each roadway segment, and wherein the map data includes multiple roadway types, and each roadway type reflects a unique set of roadway conditions;
• obtaining a price of fuel available to the vehicle;
• obtaining a fuel economy value for the vehicle on each roadway type;
• calculating a cost of driving each of a plurality of available routes, wherein the cost of driving each available route is the sum of the cost of driving each of the one or more roadway segments included within the available route, and wherein the cost of driving each roadway segment is the mathematical product of a length of the roadway segment and the price of fuel available to the vehicle divided by the fuel economy for the vehicle on the roadway type for the roadway segment;
• identifying which of the available routes is the lowest cost route for driving the vehicle from the starting location to the destination;
• and displaying, on a display screen, the identified route.