And that's because Austin is a much smaller city. Of course traffic is much easier if you have 15x fewer people going anywhere. If you go by administrative bord

And that's because Austin is a much smaller city. Of course traffic is much easier if you have 15x fewer people going anywhere. If you go by administrative borders, Tokyo is roughly 2.5x larger by land area, with 5.5x higher population density. And if you look at the metropolitan areas, Tokyo is 20% larger by land area and has at least 13x higher population density.