excavator is loading a truck with ground on building site, road roller compact soil

excavator loading truck ground building site road roller compact soil alignment area backhoe bulldozer civil engineering compacting compactor construction crawler dig digger dumper earth mover earthmover earthwork earthworks equalization equalizes equates excavate excavation flatten flatting industrial industry job land landscape level lorry machine machinery mechanization steamroller teamwork tipper trace track trail work yellow zone project progress filling leveling