HUD Noise Level Calculator

Calculate Noise Level (dB)





Formula

The formula to calculate the noise level (NL) is:

\[ NL = 70 + 10 \log_{10}(TV) + 20 \log_{10}\left(\frac{S}{70}\right) - 30 \log_{10}\left(\frac{D}{50}\right) \]

Where:

What is HUD Noise Level?

The HUD noise level is a measure of the sound pressure level created by vehicular traffic, typically used in urban planning and environmental studies. It is expressed in decibels (dB), a logarithmic unit that quantifies the intensity of sound. This measurement helps in assessing the impact of road traffic noise on nearby residential and commercial areas and is crucial for developing noise mitigation strategies.

Example Calculation

Let's assume the following values:

Using the formula:

\[ NL = 70 + 10 \log_{10}(500) + 20 \log_{10}\left(\frac{55}{70}\right) - 30 \log_{10}\left(\frac{100}{50}\right) \approx 85.86 \text{ dB} \]

The noise level is approximately 85.86 dB.