A banksman is a person responsible for coordinating and directing heavy equipment movements on a construction site. Synonyms for banksman include signalman, flagman, and signaller. These individuals perform an essential role in ensuring that workers on site remain safe by communicating clearly and effectively with operators of cranes, excavators, and other large vehicles. Other alternative words for banksman include traffic controller, site supervisor, and safety marshal. Whether on a building site or a port, the banksman's job is to have a clear oversight of all activity involving heavy machinery and ensure that all safety procedures are followed to minimize the risk of accidents and injuries.