(こうつうじゅうたい)

こうつうじゅうたい
noun
traffic jam, traffic congestion
transportation
1. traffic jam, traffic congestion
A condition where vehicles on a road are moving very slowly or not at all due to heavy traffic volume, accidents, or road work.
交通渋滞(こうつうじゅうたい)遅刻(ちこく)した
I was late because of a traffic jam.
連休(れんきゅう)いつも交通渋滞(こうつうじゅうたい)ひどい
Traffic congestion is always terrible during long weekends.
Traffic congestion has occurred on the highway due to an accident.

交通渋滞(こうつうじゅうたい) is composed of 交通(こうつう) (traffic) + 渋滞(じゅうたい) (congestion, stagnation).

Common collocations

Usage: In casual speech, 渋滞(じゅうたい) alone is more common. The full form 交通渋滞(こうつうじゅうたい) is used in news reports, official announcements, and more formal contexts.