why is it important for singapore to have smooth traffic flow?

Answer 1

I would say it's important for every major city to have smooth traffic flow.

But of course, the usual reasons: ease of travel, safety, efficiency...

Answer 2

Well, having been there twice, the first time lasting about 8 days, I would say that they have very good traffic flow when compared to other cities of comparable size. Almost none of the cars have any dents, and they are all well cared for. Cars are expensive over there since they are ALL imported, and as such are very expensive to own and maintain.