As far as I'm concerned, transportation is solved. I live in Paris, there are 14 (soon to be 15) metro lines covering the city in a dense underground mesh, and you never have to wait more the 5 minutes to hop into one.

Paris doesn't have the best transit in the world, but they get credit for being very good and useful. Most of the world has a lot to learn from them. Most people don't live in places with transport anywhere near that good.

Don't get complainant. There is still a lot Paris needs to improve on. Please show the world what the next level looks like.