Ramp Radius Calculator

Calculate Ramp Radius



Formula

To calculate the Ramp Radius (R):

\[ R = \frac{V^2}{g \times \tan(\theta)} \]

Where:

What is Ramp Radius?

Ramp radius is the minimum curve radius required for a vehicle to safely navigate a ramp at a certain speed without skidding or overturning. It is a critical parameter in the design of roads, especially for ramps and curved sections, to ensure the safety and comfort of the drivers. The radius depends on the speed of the vehicle, the slope of the ramp, and the friction between the tires and the road surface.

Example Calculation 1

Let's assume the following values:

Using the formula:

\[ R = \frac{60^2}{32.2 \times \tan(0.5)} \approx \frac{3600}{32.2 \times 0.5463} \approx \frac{3600}{17.57} \approx 204.88 \text{ feet} \]

The Ramp Radius is approximately 204.88 feet.

Example Calculation 2

Let's assume the following values:

Using the formula:

\[ R = \frac{80^2}{32.2 \times \tan(0.3)} \approx \frac{6400}{32.2 \times 0.3093} \approx \frac{6400}{9.95} \approx 642.52 \text{ feet} \]

The Ramp Radius is approximately 642.52 feet.