American Institute of Certified Planners (AICP) Practice Exam

Which of the following best describes the term "infill development"?

1. Development of previously undeveloped land in suburban areas

2. Redevelopment of abandoned urban properties

3. Utilizing vacant land within existing urban areas

4. Building new infrastructure in rural zones

The correct answer is: Utilizing vacant land within existing urban areas

Infill development refers specifically to the practice of utilizing vacant or underused land within existing urban areas. This concept is essential in urban planning as it seeks to enhance the efficiency of land use in already developed environments. By focusing on vacant lots within cities, infill development promotes urban density, reduces urban sprawl, and makes use of existing infrastructure and services, which can lead to more sustainable urban growth. Utilizing vacant land helps to revitalize neighborhoods and can also contribute to a more vibrant community life by increasing housing supply, attracting businesses, and enhancing access to public amenities. This approach contrasts with the idea of developing new areas on previously undeveloped land or in rural zones, which would not qualify as infill but rather as greenfield development.