Suburban sprawl refers to the spread of residential development into previously undeveloped areas outside of urban centers. This phenomenon often results in low-density housing, increased reliance on cars, and the expansion of infrastructure such as roads and schools. It typically occurs when cities grow outward, leading to the creation of new suburbs that can be far from city amenities. The effects of suburban sprawl can include environmental concerns, such as habitat loss and increased air pollution, as well as social issues like longer commutes and reduced access to public services. Urban planners often seek to manage sprawl through strategies like smart growth and mixed-use development to promote more sustainable communities.