The phrase "broad swath" refers to a large, extensive or wide area. It suggests that something affects or covers a significant portion of a particular region or field. Full definition
This choice, coupled with a palate of broad swathes of green littered with more muted industrial hues, evokes the cities surrounding the Yangtze that were abandoned and submerged during the earth - moving Three Gorges Dam project.» (painters-table.com)
«The upcoming year will see a great deal of resurfacing work taking place across broad swaths of Staten Island, including many main thoroughfares,» Oddo said in a statement. (dnainfo.com)
Against a background of royal blue shot through with broad swathes of dripping black paint, words and symbols are scrawled in white, yellow and red, with the artist's signature crown gleaming like a beacon at the centre. (christies.com)