American Institute of Certified Planners (AICP) Practice Exam

In the context of land use planning, what does the term 'infill development' refer to?

1. Building in undeveloped areas.

2. Rehabilitating existing structures for new use.

3. Utilizing vacant lots in already developed areas.

4. Restricting development in urban areas.

The correct answer is: Utilizing vacant lots in already developed areas.

The term 'infill development' refers to the practice of utilizing vacant lots in already developed areas, making it a key strategy in land use planning. This approach helps to enhance urban density, promote more efficient use of land, and optimize existing infrastructure. By filling in empty spaces within a city or town, planners can contribute to the revitalization of neighborhoods, reduce urban sprawl, and minimize the need for extending infrastructure to new, undeveloped areas. In contrast, building in undeveloped areas does not align with the principles of infill development, as it expands urban boundaries rather than developing within them. Rehabilitating existing structures for new use may involve redevelopment, but it is not synonymous with infill development, which specifically targets vacant parcels in built environments. Similarly, restricting development in urban areas would be an entirely different concept focused on limiting growth rather than encouraging it within existing spaces. Thus, the correct interpretation of infill development is centered on the effective use of vacant land within previously developed areas.