A method and path planner (10) for planning a path of a vehicle comprising a perimeter training module (14) for identifying a border of a region associated with a work area. A definer (26) for defining a reference row having a reference path that tracks at least a majority of the border. A generator (30) generates tracking rows that track the reference row. The tracking rows comprise at least one inner tracking row and an outer tracking row. Each inner tracking row having at least one inner curve with a lesser radius than an outer tracking row having a corresponding outer curve with a greater radius.