After half day tour in Jakarta, i can conclude that it's definitely clear that Jakarta has become more and more crowded from the last time i visited Jakarta. In the past, i could reach Blok M from the airport in less than one hour, but right now, it took me more than one hour to get there. Every road was jammed and the progress was so slow.
I think the government should think about this problem seriously. Also, think about the pollution that is caused by the growth of cars and motorcycles without reducing the old cars/motorcycles.
When i was in China, i saw that most of the people were riding electrical motorcycle. It was silent, pollution-free, and less accidents since they can only travel around 30 KM/hour. I wish that people should realize this and start working on more environmental solutions.