place in the previous decade continued. By 1970, the village population had grown to 18,730. That same year, a second expressway, Interstate 290, opened on the eastern boundary of the village. This provided another link to Chicago and further enhanced its stature in the eyes of the region's many developers. The following year, Woodfield Mall opened in Schaumburg. During the remainder of the decade, Schaumburg experienced phenomenal commercial, industrial and residential development. In 1978, the Village Board formally established the Olde Schaumburg Centre Overlay District to preserve the character of the area located at the intersection of Schaumburg and Roselle roads. The Olde Schaumburg Centre Commission, also established in 1978, reviews new development and restoration projects in the district to ensure the continued historic appeal of the area. By 1980, Schaumburg had expanded to of land area, and its population had swelled to 53,305 residents. During the early- and mid-1980s, development focused on large corporate office buildings in the emerging "Woodfield Center" along Golf Road. The late 1980s were characterized by the vast expansion of small manufacturing and warehouse uses in the industrial and business parks in the village's northeast and southwest quadrants. Other development such as large manufacturing facilities, commercial retail centers, and large suite hotels boomed in the 1980s. Schaumburg was profiled in Joel Garreau's 1991 book about edge cities as, "a suburb conforming to a new form of urban development in which large concentrations of jobs exist, though outside the traditional downtown city centers." By 1990, Schaumburg's population was increasing at a slower rate as the land available for residential development was rapidly disappearing. The population in 1990 had risen to 68,586, an increase of 15,281 since 1980. Although this was still an impressive growth rate, it was apparent that Schaumburg was nearing its residential capacity within the terms of current land management. Office development in the 1990s had also slowed. The once booming office market slumped due to the large supply of office space in the northwest suburbs and the limited demand by typical users in the financial, insurance, and real estate sectors. However, the Schaumburg commercial market enjoyed substantial expansion during this period. Since 1990, Schaumburg has witnessed the development of 2 million square feet (180,000 m2) of commercial space, including a variety of retail uses. Another mall named One Schaumburg Place and a retail area called Village Green were built in the early 1990s.