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Construction Crane

Uses of cranes

They can be used to load and unload large cargo on and off ships or trains.

They can be used to build structures. These could be buildings, bridges and even roads in some cases.

Dangers of cranes

Between 2011 and 2015, 44 people died per year from crane-related accidents. https://www.bls.gov/iif/oshwc/cfoi/cranes_fact_sheet.htm

Cranes can hit power lines or people can fall or be thrown off of them.

People can be crushed by collapsing cranes or fallen loads.

Inputs and outputs

Outputs

The operator guides the crane to swivel, lift and lower large objects.

Inputs

Gasoline or diesel is entered into the cranes engine so it can run. Cranes can also run by electric motor.

The crane operator uses their arms and legs to control levers and foot pedals that move the crane.