A tower crane is a lifting and handling device. It is a type of crane used on infrastructure, building and civil engineering sites, as well as on shipyards.
These cranes come in a variety of designs, from GME (self-erecting cranes) to GMA (self-erecting cranes), with equally wide-ranging characteristics (dimensions, lifting heights, spans, load capacities) to match the needs of the site (single-family homes, high-rise buildings, small warehouses at nuclear power plants, spacecraft launch pads).
Tower cranes are useful but fragile machines, requiring daily supervision and extensive maintenance.
Even if they are tending towards automation, they still need to be operated by human hands. This task is entrusted to the crane operator (there are still very few women in this profession), who undergoes special medical supervision and general and specific training for each type of machine, leading to a certificate of safe driving and a restricted authorization issued by the company manager on the basis of the medical aptitude certificate and driving certificate. The crane operator must be familiar with the needs of the various teams and be able to see everything from his or her position.
All these precautions (which some call constraints) mean that the number of accidents is low.
The crane is essential to the success of a construction site.