Before Vietnamese Sai Gon was still called Sai Gon, there was a lot of car on road.
When Sai Gon change name to HCMC (i.e: communism triumph over greedy capitalism), lot of cars disappeared, replace by bycycle, then motorcycle until today.
So, porverty to the point that convert car from necessity to luxury is a best way to reduce car.
Porverty.
Before Vietnamese Sai Gon was still called Sai Gon, there was a lot of car on road.
When Sai Gon change name to HCMC (i.e: communism triumph over greedy capitalism), lot of cars disappeared, replace by bycycle, then motorcycle until today.
So, porverty to the point that convert car from necessity to luxury is a best way to reduce car.