Site preparation and crane erection typically take the most time for which type of cranes?

Lattice boom cranes are known for having a more complex setup and disassembly process, which contributes to longer site preparation and erection times compared to other types of cranes. These cranes consist of a lattice structure that makes them lighter but requires careful assembly to ensure stability and safety.

The intricate nature of a lattice boom crane means that multiple components must be assembled on-site, and this may involve significant coordination and additional personnel to ensure everything is constructed correctly. Additionally, any required counterweights and rigging setups can add to the time needed for preparation and assembly.

In contrast, telescopic cranes and rough-terrain cranes tend to have more straightforward setups that allow for quicker deployment, while crane trucks combine both the crane and truck in one unit, reducing the need for extensive assembly. Thus, the lattice boom crane's requirements lead to the longest time needed for site preparation and crane erection.