Correct

拥堵

/ yōng dǔ / 
Strokes

Definition

(of traffic) to become congested/congestion

Example

As a Noun

traffic congestion; traffic jam

1
Bìxū
必须
cǎiqǔ
采取
cuòshī
措施
huǎnjiě
缓解
shìōu
市区
jiāotōng
交通
yōngdǔ
拥堵
zhuàngkuàng
状况
  
。

Measures must be taken to relieve the traffic jams in the urban areas.