The key feature of off-site fabrication is that much of the process is removed from the site to controlled factory conditions. This reduces the amount of time spent on site and saves on space requirements. Environmentally, it reduces noise, air/water pollution and traffic impacts on the locality, and leads to improved efficiency in the use of resources and less waste. In addition, volumetric construction using prefabricated modules allows buildings to be potentially dismantled and the modules reused at a different location.