Final answer:
Construction managers are usually responsible for assigning planning tasks in a construction project, while engineers focus on the technical aspects. Site planners collaborate with construction managers in developing the project plan.
Step-by-step explanation:
In a construction project, the planning tasks are typically assigned by construction managers. Construction managers are responsible for overseeing the entire project and coordinating various aspects, including planning, scheduling, budgeting, and resource allocation.
While engineers play a crucial role in designing the construction project, they are not directly responsible for assigning planning tasks. Engineers focus on the technical aspects of the project, such as structural design, materials selection, and quality control.
Site planners, on the other hand, work closely with construction managers to develop the project plan, considering factors like site layout, logistics, and environmental impact. They contribute to the overall planning process but do not have the sole authority to assign planning tasks.