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States Wire Up Roads as Cars Get Smarter

States Wire Up Roads as Cars Get Smarter by @PaulPage on @WSJ  #IoT #connectedcars

Some states are setting up “smart roads” lined with fiber optics, cameras and connected signaling devices in an effort to unlock benefits from self-driving cars, curb accidents and save fuel.

@evankirstel: States Wire Up Roads as Cars Get Smarter by @PaulPage on @WSJ #IoT #connectedcars

FAIRFAX, Va.—On a crowded interstate outside Washington, D.C., large digital signs over four westbound lanes flashed messages lowering the speed limit by 10, then 20 miles an hour.

Drivers slowed just as a fast-moving thunderstorm unleashed sheets of rain that drenched the road and reduced visibility to a few dozen yards. There was no abrupt braking, no swerving and none of the fender-benders that can tie up traffic for miles.

States Wire Up Roads as Cars Get Smarter