How do cranes get from one construction site to another without hitting streetlights, wires, car, buildings?
They are disassembled and loaded onto flat bed trailers. The larger the crane the more flat beds.
They are disassembled and carried via a truck to the next job site. Also some cranes are built into a truck and so they retract into itself and make it easier to get around in a city. Also in order to be a crane operator you have to have special certification and training. For the larger cranes that are able to be on the road, some times police departments well shut down roads in order for it to move around in the city.
They dodge by the stuff as they fly along. Duhhh