istephenyu8790-san, マイケルsan,
kon'nichiwa
That's a typical headline we see at this time of the year
Like マイケルsan said, お盆休み is holiday for mid-August (お盆 is 13th-15th August, but in some
cities it seems to be 14th-16th...) and many Japanese people take holiday around those days
to have special time at home with family and ancestors, traditionally.
Recently, people take holiday and travel "to have fun" including travel abroad.
帰国 means coming back to Japan from other countries.
Because many people take holiday and travel at the same time, there're always "rush crushes" on
public transportations. 帰国ラッシュもピーク means "rush to home (country) is also at the peak".
Natsuko(奈津子),
Team JapanesePod101.com