During Summer, There are many summer festivals in Japan.
Especially festivals with fireworks are common.

The reason is simple,
People take summer vacation during Summer season, and School are summer vacation.

School Summer vacation begins from July 20 to August 31.
(Summer vacation may be short in northern Japan.Because of longer winter vacation)

However, There is bad thing in festival,
Traffic Jam!

I happened to go through near the festival yesterday.
I didn’t know why there is heavy traffic jam at that time.
I searched on the Internet and find that because of summer festival,
Traffic was stuck!