The formula to calculate the Acceptable Separation Distance (ASD) is:
\[ ASD = \sqrt{H \cdot W} \]
Where:
Let's say the building height (H) is 30 feet and the building width (W) is 20 feet. Using the formula:
\[ ASD = \sqrt{30 \times 20} = \sqrt{600} \approx 24.49 \]
So, the acceptable separation distance is approximately 24.49 feet.