Eli5: How do road workers and pavers work on interstates and highways when traffic is oncoming constantly? How do they place the barrels and cones down? Do they just run an hope not to get run over? How do they plan it?
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I’m not an expert but a major highway in my area has been undergoing re-paving for months and I’ve seen them do it. Early in the morning (like 4 AM or so) they set up one of those large blinking signs with the arrow to tell you to move to the other way. Typically a half mile beforehand they’ll have another sign that says “left lane closed” or whatever it may be. Then once traffic stops going into that line, they put a guy on a truck who has a stack of cones and lays them down every ten feet while the truck moves slowly. I think the key thing to note with your question is that traffic is not oncoming constantly. If you’ve ever been on a highway at 3 am you’ll usually see it’s a ghost town.
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