교통 4번

Problems often arise related to transportation.
Cars break down, trains run late, or there are traffic jams.
Tell me about a transportation problem that you once faced.
Tell me everything that happened and what you did to deal with the situation.

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There aren't many problems I've had with public transportation.

Since public transportation is used by many people, 

there is a problem that buses and subways become crowded during rush hour.

Passengers also fell into trains or buses and injured themselves.

Also, frequent delays can interfere with work or school.