What is the primary purpose of using construction lines?

The primary purpose of using construction lines is to guide the initial layout of the drawing. These lines are typically light and temporary, serving as a framework upon which a more detailed and polished design is developed. Construction lines help in establishing proportions, alignments, and spatial relationships between various components in the drawing, allowing designers to organize ideas before committing to final details. They facilitate adjustments and corrections during the early stages, ensuring that the subsequent work aligns accurately with the intended design. This foundational aspect of construction lines is crucial for maintaining precision and coherence in architectural and design projects.