one thing I want to change in China

I want to change the traffic conditions in China. Nowadays, cities, especially big cities in china are so crowded.

For example, when I go to school from my home, I always ride a bike because it takes half of the time compare with my dad or mom drove me to school

The air near the roads, both main roads and small roads is polluted during rush hours. It does lots of harm to us.

But the air is not always so bad, the air will be better when it isn’t rush hour.