Auralisation: Motorway with noise reduction measures

Explore how noise reduction measures, such as a 4-meter-high noise barrier and a noise-reducing road surface, can impact motorway noise levels.

How to use the auralisations

• Connect your headset to your computer.
• Ensure the left and right audio channels are correctly set.
• Click on the black boxes to start playback.
• Switch between options during playback to compare noise levels.
• Do not adjust the volume after calibrating your system, as this may affect the accuracy of the demonstration.

The auralisations are developed in cooperation with the Danish Road Directorate.

How to listen to auralisations

You can adjust the sound level of your playback system (PC, tablet, or smartphone) using the sound file for adjustment of volume on this page.

Adjust the level to the point where it sounds like a person speaking at normal volume one meter in front of you. You can compare it to a real person speaking at a meter’s distance. You may have to adjust the level a couple of times before you’re confident the level is right.

Get the most out of auralisations

In order to get the most out of the auralisations, you should do the following:

• Read the prerequisites below. You get the full information on the different situations (traffic flow, type of road etc.) in the grey tabs below.
• Adjust the “playback level” as described to get the correct volume in your headset.
• Listen to the auralisations by clicking the appropriate text in the box. When the sound files are loaded into your browser you can instantly switch between different sound files – which makes differences appear immediately.