What is the significance of the 'keyed notes' on a set of architect's drawings?

Keyed notes on a set of architect's drawings play a crucial role in providing clarity and additional information that would otherwise clutter the drawings if included directly. They correspond to specific details or explanations, guiding the reader to understand intricate elements, materials, or construction methods that are integral to the project. By using keyed notes, architects ensure that key information is easily accessible and referenced, facilitating a smoother construction process without overwhelming the plans with excessive text or details. This practice enhances communication between architects, builders, and other stakeholders, ensuring everyone has the necessary context for various aspects of the construction.