noun
non-stop station; station passed through
Refers to a station where the train does not stop; often used in contrast with 停車駅 (stopping station).
急行はこの駅を通過駅とする。
The express train treats this station as a non-stop station.
通過駅の案内放送が流れた。
An announcement for the non-stop station was broadcast.
通過 means 'passing through' and is the base noun; 通過駅 specifically refers to a station.
Compound of 通過 (passing through) + 駅 (station).