What Is The Future Of Transportation In 21st Century?

What Is The Future Of Transportation In 21st Century? A 21st century urban transportation system will have a multitude of modes (walking, bikes, car-sharing, transit, car-on-demand, private cars and probably other innovative technologies such as pedelecs, Yikes, etc.) seamlessly linked together. What are the possible means of transport in the 21st century? A 21st century