In the second half of the 20th century the valley became increasingly suburbanized and now forms a distinct cultural area that rivals Portland itself in political and economic influence. The communities along the Tualatin Valley Highway (the descendant of the old plank road), form a suburban corridor stretching west of Beaverton. Beaverton is famous as the location of the Nike, Inc. campus, the company's world-wide headquarters. Nike, along with Intel in Hillsboro, provide a large base of employment in the valley. Much of the valley is now within the Portland urban growth boundary, resulting in a suburban growth patterns that interspersed with remaining areas of orchards and farm fields. Most of the communities in the valley are served by TriMet, the Portland-area mass transit agency. In 1998, the MAX Light Rail system was extended from Portland into the valley as far as Hillsboro.