In two treatises written in 1816 and 1819 (Remarks on the Present System of Road-Making and Practical Essay on the Scientific Repair and Preservation of Roads) he argued that roads needed to be raised above the surrounding ground and constructed from layered rocks and gravel in a systematic manner.
Ve dvou svých traktátech z let 1816 a 1819 – Remarks on the Present System of Road-Making a Practical Essay on the Scientific Repair and Preservation of Roads – uvedl, že nově stavěné cesty by měly být tvořeny vrstvami kameniva a štěrku, uspořádanými systematickým způsobem.