Waste facilities are potentially dangerous places and clear signage and instruction ensures that vehicles or people do not end up in conflict or in the wrong place. Signage also has an important promotional role since the presence of the facility needs to be advertised to users. Signs to and within a facility can also help to raise the profile of sustainable waste management. In addition, signs on the local road network can also play an important role in the appropriate routing of vehicles to avoid highway restrictions or adverse impacts in sensitive locations.