Around 50% of the tracks of tramlines in the city of Freiburg are covered by grass – this results in, at least, a 50% reduction in noise compared to tarmac or gravel lined tramways.
Around 50% of the tracks of tramlines in the city of Freiburg are covered by grass – this results in, at least, a 50% reduction in noise compared to tarmac or gravel lined tramways.