Final answer:
Renovation of an abandoned factory or warehouse is an effort to combat urban sprawl through brownfield repair, revitalizing cities and limiting outward expansion. New Urbanism promotes such redevelopment, creating mixed-use, transit-oriented communities.
Step-by-step explanation:
An example of an effort to address urban sprawl through brownfield repair would be the renovation of an abandoned factory or warehouse. This involves redeveloping pre-existing urban areas instead of expanding outwards onto undeveloped, often greenfield, sites. Brownfield sites are typically underused industrial properties that have been affected by environmental contamination. Repairing and reusing these sites help combat urban sprawl by revitalizing inner-city areas and discouraging development on untouched land. New Urbanism is a movement that emerged to combat urban sprawl, emphasizing the creation of complete neighborhoods often referred to as Transit-Oriented Development, with access to public transportation and a mix of commercial, residential, and recreational spaces. This urban planning approach is seen in areas like the North Hollywood Arts District in Los Angeles, where the redevelopment of once declining areas occurs alongside improved mass transit options.