Residential landuse patterns also would grow in wedge-shaped patterns with a sector of lower-incomehouseholds bordering the manufacturing/ warehousing sector (traffic, noise and pollution makingthese less desirable locations to live) and sectors of middle- and higher-income householdslocated away from industrtial sites. In many respects, Hoyt's sector model is simply a concentriczone model modified to account for the impact of transportation systems on accessibility.