Which of the following best describes the aim of structural design?

The aim of structural design primarily focuses on ensuring the safety and functionality of structures. This aspect encompasses not only the physical integrity of a building or infrastructure but also how effectively it serves its intended purpose. Structural design involves the calculations and analyses that ensure a structure can withstand environmental forces such as wind and earthquakes, while also accommodating the loads it is meant to support, such as occupants and furniture.

A well-designed structure must be both safe for occupants and functional in its use, guaranteeing that it can be utilized effectively without posing risks. While aesthetic appeal and decorative surfaces might enhance a structure's visual aspects, they are secondary to the fundamental necessity of safety and functionality in structural design. Additionally, forecasting market trends pertains more to the business and marketing side of architecture rather than the core principles of how a structure is designed to meet safety and functional criteria.