I absolutely agree with John Rogers statement above: "If you want real solutions to traffic, you either need to get people to stay at home (telecommuting or online schooling) or you take human error out of the equation (e.g. driverless cars). We don’t need to spend Billions of Dollars on rail. I expect within the next 10-20 years, driverless cars will become the norm resulting in very few accidents (of which most will be caused by people actually driving their cars manually and recklessly)."  

Not only is this more forward-thinking and more compatible with the lifestyles of the Millennial generation and those that will follow them, it is far more cost-effective than increasingly archaic 20th century concepts of "mass transit".