Hitachi Construction Machinery Group works on developing autonomous construction equipment that can work in collaborative safety with humans and ICT/IoT technology for improving safety and productivity at construction sites. One such project under development is an autonomous compaction system using vibratory roller for earthwork.
Roads are broadly divided into four layers: the subgrade, subbase course, base course, and surface course. Vibratory rollers are utilized to compact the subgrade, which is the base layer of a road. They are also used in the preparation of dams, airports, and residential land. The construction of robust infrastructure requires the formation of base layers that are strong enough to withstand the loads they will be subjected to, and machinery needs to move back and forth countless times to ensure that the soil is evenly compacted. This means that autonomous operation requires a high level of driving accuracy.