noun, adverb
on the way; en route
Used for physical movement or travel; often appears with verbs like 行く, 来る, or in phrases such as ～の途上で.
出張の途上、新幹線の中で資料を読んだ。
On the way to the business trip, I read the documents on the Shinkansen.
彼は帰
He had an accident on his way home.
noun
in the process of; in the middle of
Abstract use for ongoing development, construction, or progress; commonly follows nouns like 発展, 建設, 成長.
その国は発展の途上にある。
The country is in the process of development.
新しいビルはまだ建設の途上だ。
The new building is still in the middle of construction.