Open Space Percentage Calculator

Open Space Percentage Formula:

\[ OSP = \frac{A_{open}}{A_{total}} \times 100 \]

Open Space Percentage (%):

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1. What is Open Space Percentage?

Definition: Open Space Percentage (OSP) measures the proportion of unbuilt land area relative to the total area of a site.

Purpose: It's a key metric in urban planning, landscape architecture, and sustainable development to ensure adequate green spaces.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ OSP = \frac{A_{open}}{A_{total}} \times 100 \]

Where:

\( OSP \) — Open space percentage (%)
\( A_{open} \) — Open space area (m²)
\( A_{total} \) — Total area (m²)

Explanation: The open space area is divided by the total area and multiplied by 100 to get the percentage.

3. Importance of Open Space Percentage

Details: Higher OSP values indicate better environmental quality, improved urban microclimate, and enhanced community well-being.

4. Using the Calculator

Tips: Enter both open space area and total area in square meters. Open space area cannot exceed total area.

5. Frequently Asked Questions (FAQ)

Q1: What counts as open space?
A: Typically includes parks, gardens, playgrounds, water bodies, and other unbuilt areas accessible to the public.

Q2: What's a good OSP value?
A: Urban planning standards often recommend 15-20% minimum, with 25-30% being ideal for sustainable communities.

Q3: How does OSP differ from green space?
A: OSP includes all unbuilt areas (even paved), while green space specifically refers to vegetated areas.

Q4: Can OSP be more than 100%?
A: No, since open space is part of the total area, OSP ranges from 0% to 100%.

Q5: Why measure in square meters?
A: The metric system is standard for urban planning, but you can convert from other units before calculation.