Arduino + GPS + LEDs = Find home detector

quick question:

why is there a 50 unit gap? is this to avoid flickering between two directions?

 northOn = 3350 < directionToDestination || directionToDestination < 250;
  northeastOn = 200 < directionToDestination && directionToDestination < 700;
  eastOn = 650 < directionToDestination && directionToDestination < 1150;
  southeastOn = 1100 < directionToDestination && directionToDestination < 1900;
  southwestOn = 1700 < directionToDestination && directionToDestination < 2500;
  westOn = 2450 < directionToDestination && directionToDestination < 2950;
  northwestOn = 2900 < directionToDestination && directionToDestination < 3350;