urban overcrowding
overcrowding issues
prevent overcrowding
severe overcrowding
A: Why is this train so uncomfortable?
A：为什么这列火车这么不舒服？
B: It is due to the over-crowding during rush hour.
B：这是因为高峰时段的过度拥挤导致的。
1) 人口过剩
2) 空间拥挤
3) 过于拥挤的状态
1. 过度拥挤
noun
1. The state of having too many people or things in a space.
Synonym: congestion, density