They pollute more than you think, and using concrete is very rare in certain parts of the world. Outside of elevated roads I’ve never seen in used in my area or any part of the northern US.
Well, the post is about the UK and concrete is slowly growing in numbers here. It’s also worth noting, that even if there’s a slim asphalt layer on top, many roads are made of concrete and other stuff inside. Asphalt is usually added to improve wet weather performance of the road.
They pollute more than you think, and using concrete is very rare in certain parts of the world. Outside of elevated roads I’ve never seen in used in my area or any part of the northern US.
Well, the post is about the UK and concrete is slowly growing in numbers here. It’s also worth noting, that even if there’s a slim asphalt layer on top, many roads are made of concrete and other stuff inside. Asphalt is usually added to improve wet weather performance of the road.