We live in the age of mobility. The flow of traffic is rising steadily throughout the world, moving from one metropolis to another or between suburbs and city centers. Traffic has become an important economic factor everywhere, for people come together to transact business only in places that offer the necessary mobility.
Today’s economic activity takes place in large urban centers. When megacities expand, they need to also make continuous improvements to the infrastructure. However, even the widest urban highways, with their tunnels and bridges, are not enough, for the number of private cars is increasing steadily worldwide.
It also discusses the negative consequences of mobility. 'Less is more' also discusses recent hybrid car designs.