Express- and motorway noise at a distance of 30 and 100 metres.

Listen to expressway and motorway noise. The expressway noise represents a two-lane road (15,000 vehicles/24h at 80 km/h). The motorway noise represents a four-lane motorway (59,000 vehicles/24 h at 110 km/h).

The examples show differences in traffic flow and speed at a distance of 30 and 100 metres.

Note: Due to the differences in traffic flow you should listen to the sound files continuously for some time – don’t make frequent jumps between the two sound files.


Please connect your headset to your computer. Make sure that the left and right channels are set correctly.

Start by pressing the black boxes. During playback you can jump between options.

You should not adjust the volume as this will change the adjustment you have already made in order to calibrate your system.

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