1. What is Car Ramp Ratio?

The Car Ramp Ratio represents the relationship between the vertical rise and horizontal run of a ramp. It is a dimensionless value that indicates the steepness or gradient of the ramp, which is crucial for vehicle accessibility and safety.

2. How Does the Calculator Work?

The calculator uses the simple ratio formula:

Where:

• \( \text{rise} \) — Vertical change (in meters, feet, or other units)
• \( \text{run} \) — Horizontal change (in meters, feet, or other units)

Explanation: The ratio is calculated by dividing the vertical rise by the horizontal run, providing a measure of the ramp's steepness.

3. Importance of Ramp Ratio Calculation

Details: Calculating the ramp ratio is essential for ensuring vehicle safety, determining if a vehicle can safely ascend or descend a ramp, and meeting accessibility standards for various applications.

4. Using the Calculator

Tips: Enter both rise and run values in consistent units (e.g., both in meters or both in feet). Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is considered a safe ramp ratio for vehicles?
A: A ratio of 1:12 (rise:run) is commonly used for accessibility ramps, but specific requirements may vary based on vehicle type and local regulations.

Q2: How do I convert ratio to percentage grade?
A: Multiply the ratio by 100 to get the percentage grade (e.g., ratio of 0.0833 = 8.33% grade).

Q3: Can I use different units for rise and run?
A: No, both measurements must be in the same units to calculate a valid ratio.

Q4: What's the difference between ratio and angle?
A: Ratio is rise divided by run, while angle is the arctangent of the ratio, measured in degrees.

Q5: Why is ramp ratio important for vehicle safety?
A: Excessive ramp ratios can cause vehicles to bottom out, lose traction, or have difficulty climbing, potentially leading to accidents.