The devices have been part of the NJDOT's emergency response to the sinkhole repairs on Route 80 in Morris County.

Police cars have various lights they use to communicate with others on the road, but at times it can be hard to tell what exactly they're conveying. Red and blue flashing lights are standard and we ...

Q. What do the flashing blue lights off to the side of the freeway mean? They flash at the end of long poles, perhaps near construction materials. There is one at the Pacific Coast Highway exit on the ...

Add Yahoo as a preferred source to see more of our stories on Google. You may have noticed the tall, blue-blinking, solar powered camera array that sits high above ...

Ponder the red-backed poison frog. In nature, red can issue a warning to predators — stay away, the aposematic message reads. On the road, red can be a warning of its own, often flashing on emergency ...

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