Scottish engineer John McAdam is generally credited with designing in the early 19th century the first modern roads made by compressing thick deposits of crushed, angular stones.

• 一般认为，苏格兰工程师麦克亚当（JohnMcAdam）于19世纪初，把厚厚一层尖碎石压紧，设计了史上第一条现代马路。