throughout the entire course of a journey or along a route

to have a pleasant journey

to have a pleasant and safe journey; commonly used as a parting wish equivalent to "Bon voyage!"

to live an exhausting journey

(idiom) (pejorative) as detestable as each other; birds of a feather; cut from the same cloth

(coll.) going on foot

all the way; all along; since the start

Belt and Road Initiative, a Chinese government plan to provide finance and engineering expertise to build infrastructure across Eurasia and northeast Africa, unveiled in 2013.