There are many suburban communities that have found their population stagnating, and it affects their tax base. Communities that were built only a decade ago have become full, and the local population is moving elsewhere as their children grow and leave home. For them, expansion often means extending the roads they already have into areas that have never been developed. For companies that specialize in new housing, retail space, or roads, there is plenty of opportunity.
It might seem counterproductive to extend roads into undeveloped areas, but many smaller suburbs are looking for businesses as well as housing. They are seeking a way to keep people in the area, but they must furnish them with a way to find good employment. Developers understand the needs of smaller areas for this type of expansion, so they are ready with plans and presentations whenever road expansion comes up for discussion within their area of operations.