Final answer:
Builders rely upon physical models along with blueprints to visualize and understand construction processes.
Step-by-step explanation:
In conjunction with blueprints, builders rely upon physical models to help visualize and understand the construction process.
These models can be built of various materials and show how the final structure will look and function. For example, an architect may build a tabletop model to demonstrate how an office building will fit in a city block, while companies may construct rough models of new products to illustrate their functionality.