Rosco RB48 is a self-propelled sweeper used for roadway, airport, and industrial surface cleaning. It is designed for collecting dirt, debris, and light material from paved areas, with a broom-and-vacuum style sweeping system depending on configuration. The RB48 is commonly associated with municipal maintenance, construction cleanup, and pavement preparation tasks. Rosco sweepers are built for continuous-duty operation and are typically used on streets, parking lots, runways, and job sites. The RB48 model is identified as part of Rosco's sweeper lineup and is referenced in equipment listings, fleet records, and maintenance documentation for surface cleaning applications.