What will save cities are NO cars and more bikes, trams and the like.

Cars are the scourge of society where road rage, egotistic narcissism, vanity is all the rage and with one peek behind the steering wheel one finds a balding overweight middle aged crisis male trying to be Tom Cruise all again.  I am 59, male, ride 6,000 kilometers a year and put most of these baldies to shame.....and drive only when I have to.
The great European cities cater equally to the bike as the car and in some cases even  more. 

The sooner we get these fools out behind a wheel and on a bike the better.  Better for our health care system. better for our insurance system, better for their gut syndrom, better for their, Wow look at me in my Porsche c/w bald head and fat gut syndrom.

The other day a fattie complete with man breasts was smoking outside the bank beside his Carerra S.  I told him if he rode his man breasts might have a chance of disappearing. 

He moved but stumbled over his belly....LOL