Our distances are not driving distances, but are calculated as a 'straight-line' distance. A straight line distance ignores things like rivers, canyons, lakes, et cetera - it's truly a line drawn from Point A (ie- Richardson) to Point B.Our distance measurements begin at a specific point in Richardson. The point we use is located at these GPS coordinates - Latitude: 34.5566, Longitude: -78.8359 In this case, the coordinates for Richardson have been provided by the Geographic Names Information System (GNIS).