How does a legend in MEP prints assist users?

The legend in MEP prints plays a crucial role by providing a key for interpreting symbols, line types, and abbreviations used throughout the drawings. It serves as a reference guide that helps users quickly understand what various graphical elements represent, making the information on the prints easier to comprehend. This is particularly important in mechanical, electrical, and plumbing (MEP) drawings where specific symbols can denote different types of systems, fixtures, or equipment. By using the legend, professionals can accurately interpret the design, ensuring that installation, maintenance, and operation of systems are performed correctly.

In contrast to the other options, a legend does not deal with project deadlines, complex terminology, or project cost estimates; rather, it focuses specifically on facilitating a clear understanding of the visual notations present in the engineering documents.