From The Rally Handbook by Clint Goss "Another popular format for route instructions is called tulips. The name comes from the Tulip Rally in Holland which first pioneered this format. A tulip gives you an overhead view of an intersection or place to execute an instruction. You enter the tulip from the bulb (usually at the bottom of the tulip) and exit the tulip at the arrow. An x is often used to mark the location of a sign, with the text of the sign given in the last column. Dashed lines may be used for unpaved . . .