路 = 足 (foot) + 各. The foot radical makes the meaning plain: a road is what feet travel on. It means a road, path, route, or journey.
路 is the road, literal and figurative: 走路 (to walk, 'travel the road' — with 走), 路上 (on the way — with 上), 一路平安 ('safe journey', a warm farewell). Streets are named with 路: 中山路 (Zhongshan Road). And the most famous 路 of all is 丝绸之路 — the Silk Road, the ancient route that carried Chinese silk, ideas, and characters west. Every character you learn is itself a small step on a 路.
A foot (足) on the ground — the ROAD it travels.
一路平安 ('peace the whole road') is a warm 'safe travels'. The most famous 路 is 丝绸之路 — the Silk Road, which carried Chinese silk and writing to the West.