6.6 Challenges of Urban Changes

Aging Infrastructure & Housing Challenges

As cities grow and change, older infrastructure (roads, water/sewer systems, transit) deteriorates, requiring costly repair. Urban decline happens when businesses and residents leave, leaving vacant buildings and declining tax revenue. Gentrification revitalizes neighborhoods as wealthier residents move in, raising property values but often displacing lower-income residents through rising rents (disinvestment reversed).

Suburban Sprawl & Its Costs

Sprawl—low-density outward urban expansion—increases dependence on cars, commute times, and infrastructure costs while consuming farmland. New Urbanism and Smart Growth policies counter sprawl by promoting walkable, mixed-use, transit-oriented development. Edge cities and exurbs form as growth pushes beyond traditional suburbs.

Social & Economic Inequality

Urban change often deepens inequality: redlining and historic discrimination created segregated, underinvested neighborhoods. Food deserts, underfunded schools, and limited public services persist in poor areas. Cities respond with urban renewal, zoning changes, and reinvestment, but these can trigger gentrification and displacement rather than solve underlying inequities.

Key terms

Gentrification

Revitalization of a neighborhood by wealthier residents, raising property values and often displacing lower-income residents.

Urban sprawl

Low-density, outward expansion of a city that increases car dependency and consumes farmland/open space.

Redlining

Discriminatory practice denying loans/services to residents in certain neighborhoods, leading to segregation and disinvestment.

New Urbanism / Smart Growth

Planning approaches promoting walkable, mixed-use, transit-oriented development to combat sprawl.

Food desert

An urban area lacking access to affordable, healthy food options, often in low-income neighborhoods.

Try an AP-style question

Gentrification often results in…

1. more affordable housing for renters
2. displacement of low-income residents
3. falling property values in the area
4. higher crime rates in the neighborhood