First, smart cars. Next, smart transport grids

A new world beckons in which urban transit networks will be able to warn about road conditions or adjust road speeds to relieve traffic congestion.A system from IBM and NXP Semiconductors gathers sensor data from cars in the city of Eindhoven in the Netherlands. One result is that city planners get a real-time view of where rain is falling.
Haunted by the nightmare of global traffic paralysis, Ford Motor executive chairman William Ford Jr. has a global dream.
Given current growth trends, the world's population is expected to reach 9 billion people by midcentury. That also means a quadrupling in the number of cars to 4 billion by 2050 -- and that, said Ford, is a recipe for global gridlock that he argues will become "a human rights issue, not just an inconvenience." LINK