Posted by Kate Phizackerley on Saturday, February 07, 2009

Airport expansion - particularly of large airports like Heathrow - always brings focus on noise pollution, as does expansion of busy roads. Maybe though we are overlooking part of the solution. Sure, cutting noise production is good and quieter engines must be part of that, but with snow lying on the ground, isn't it so much quieter, more peaceful?

Modern tarmac used for roads and pavements is hard and reflects sound well. But suppose it absorbed most sound, wouldn't that make a huge difference? If we have light-transmitting concrete, why can't we have sound-absorbing tarmac and concrete?