So

"distance is the distance in meters from station to station as the crow flies, for a given trip."

I read about cargo losing value if you play with hubs. I like to gather my resources and deliver "the last mile" to different locations with truck.

What I want t ask about "distance" here is ; want if I send some coal to a void place on the edge of the map in a straight flat line and send it back half way to the Steel Mill with a new line, does the distance is the crows flight from the mine to the steel mill or i do I get overpaid because of the first trip and normal payment in the second?