Wall Street Journal: Smart Roads. Smart Bridges. Smart Grids.

From Wall Street Journal:

Federal, state and local governments are about top our tens of billions of dollars into the nation's infrastructure. The big question: Will we simply spend the money the way we've been doing for decades-- on more concrete and steel? Or will we use it to make our roads, bridges and other assets much more intelligent?  Imagine highways that alert motorists of a traffic jam before it forms. Or bridges that report when they're at risk of collapse. Or an electric grid that fixes itself when blackouts hit. This vision -- known as "smart" infrastructure -- promises tomake the nation more productive and competitive, while helping the environmentand saving lives. Not to mention saving money by making what we've got work better and break down less often.