A ""combined road course"" (colloquially called a ""roval"") is an oval track racing facility that features a road course in the infield (or outfield), that is usually linked to the oval circuit. This type of course makes for a multi-purpose track, and allows the facility to be used for both oval and road racing. A typical combined road course consists of the oval portion of the track, using the same start/finish line, and same pit area, but a mid-course diversion to a winding road circuit in the infield (or outfield). At some point, the circuit leads back to the main oval, and completes the rest of the lap. On some of the faster ovals, a chicane is present on long back-straights, to keep speeds down, and create additional braking/passing zones. Some more complex facilities feature a stand-alone road course layout(s) in the infield not directly linked to the oval layout, or otherwise using only a short portion of the oval.