dividers
In these parts,they go up as soon as there are traffic fatalities due too head-ons.
Some have glare-fences atop to aid with night time visibility.
As Frank has mentioned,they can help with gusts and crosswind,especially with high-profile vehicles.
They have tripped high-C.G.SUVs,causing rollover and spinal cord injuries,if not death,so they're not a fix-all.
I'd rather live with,than without.Jmo.
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