re: Interstate Cable Barriers

quote:

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You do realize that most points of contact with any median highway barrier running parallel to travel lanes are going to be a glancing blow and not a head on collision, right?

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In an urban setting with a tight corridor, yes that is correct.

But in instances where you're talking about wide open pieces of interstate, you're not dealing with glancing blows. You're looking at things like drivers falling asleep at the wheel and veering into the median. That is where cables come in.

What end treatment do you propose for a concrete barrier in the middle of the interstate with a 75 mph speed limit? How can you design that safely with no chance of fatalities?

ETA: I realize that with everything, there is some chance of fatality. But in road design, you design at the absolute minimum risk, especially with interstates.