In this diagram, we aim to visualize the state of a building with multiple floors and elevators. Each object in the diagram is represented by a specific shape, color, and size to convey its meaning clearly:

1. **Floors**: Each floor is represented by a large, horizontally long rectangle. The floors are stacked vertically from bottom to top, with the bottom-most rectangle representing the ground floor (floor 0). Floors are colored in a neutral 'lightgray' to indicate their function as static structures in the building. Each floor has a text label (e.g., 'floor_0') placed inside the rectangle to identify it.

2. **Passengers**: Passengers are depicted as small rectangles on the left side of each floor. These rectangles are colored 'blue' to signify their status as passengers. Each passenger rectangle includes a text label with the passenger's identifier (e.g., 'p0') to distinguish between different passengers.

3. **Elevators**: Elevators are represented by smaller rectangles placed on the right side of each floor. There are two types of elevators:
   - **Fast Elevators**: These are colored 'green' and placed in a designated area on the right side of the floor rectangle. They have a text label with their identifier (e.g., 'fast0') and their current passenger capacity (e.g., '0/2').
   - **Slow Elevators**: These are colored 'orange' and also placed in a designated area on the right side of the floor rectangle. They have a similar text label with their identifier (e.g., 'slow0-0') and capacity (e.g., '0/1').

4. **Legend**: A legend is included to map colors to object types and statuses. It ensures that viewers can easily understand the meaning behind the colors used in the diagram. The legend is placed outside the main diagram area to avoid overlapping with any objects.

5. **Text and Status**: All text labels and statuses are placed inside their respective shapes with high contrast (e.g., white text on colored backgrounds) to ensure readability. The text is concise to fit within the small shapes while still conveying necessary information.

6. **Layout**: The layout is designed to prevent overlap between objects. Passengers are aligned on the left, while elevators are on the right, creating a clear visual distinction between different types of objects.

This encoding ensures that the diagram is both informative and easy to interpret, even for those unfamiliar with the specific domain or instance being visualized.