This is the 971st most frequent Korean word.
교통
Transportation.
Here, '교통' is used to refer to the general concept of transportation systems or traffic.
한국의 교통 시스템은 매우 발달했습니다.
The transportation system in Korea is very advanced.
Here, '교통' specifically describes the flow or congestion of traffic on roads.
그 도로는 교통이 복잡하니 다른 길로 가세요.
The road has heavy traffic, so please take a different route.
In this instance, '교통' refers to the general means of transportation used in urban areas.