“Noise movie” – a way to visualise noise in the community
A way to communicate noise situations in a pedagogic way is to show a “noise film” for various situations.
Especially hard to understand is noise from train traffic, since it contains noisy situations divided by more quiet moments.
One way to pedagogically visualise the outcome of different technical solutions (ground alternative, lowered railway and a railway tunnel) has been done by using film technique. From the home page of Burlöv local community (south of Sweden, just outside Malmö) you can see four different alternatives.
On the movies you can see how trains are moving through the society of Åkarp. A “noise bubble” follows the trains, showing different intensity. Background noise from the adjacent highways (mornings and afternoons/evenings) is shown as well. What you see is the noise at each position every moment and not the equivalent noise. The movies show an estimated traffic frequency during 10 minutes year 2020.
This way and method to visualise noise or sound situations would also be a good way for indoor room acoustic situations as to estimate consequences for various situations and solutions for schools, hospitals, offices etc. Non-experts would have a more clear understanding of sound situations.
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