madery t1_j9gj0pv wrote on February 21, 2023 at 8:03 PM Reply to comment by mrsc1880 in TIL of Macadam roads. These roads were convex, raised a few inches, and made of layered crushed rock; they were state-of-the-art for the 19th century. The rise of automobiles led to the dust issues that were solved by binding the roads with tar, leading to the invention of tarmac. by jamescookenotthatone In Belgium we do the same. The original roads were asphalted over but still referred to as macadam Permalink Parent 8
madery t1_j9gj0pv wrote
Reply to comment by mrsc1880 in TIL of Macadam roads. These roads were convex, raised a few inches, and made of layered crushed rock; they were state-of-the-art for the 19th century. The rise of automobiles led to the dust issues that were solved by binding the roads with tar, leading to the invention of tarmac. by jamescookenotthatone
In Belgium we do the same. The original roads were asphalted over but still referred to as macadam