Final answer:
The project is using a spiral design process, which involves iterative refinement through multiple planners to produce an improved end design.
Step-by-step explanation:
The technique being used in the project described is known as a spiral design process. This iterative approach involves planning and revising multiple phases of the project, such as design and construction, in repetitive cycles to refine the results. Although a sequential process follows steps in direct order, the spiral process returns to previous phases repetitively or cyclically to incorporate new insights and improvements. This ensures that as the project evolves, the design can adapt to unforeseen challenges or changes. The spiral design process ultimately aims to produce a more refined and improved end design, but requires careful planning to manage the additional time and resources.