Comment Re:My -2 cents observation better transport design (Score 1) 281
In the USA (here TX only), I have not seen much construction like you describe. Especially the height warning signs. Most highways here have two height signs and a fairly generous clearance. But no specialized IR light interruption warning signs. And certainly no sacrificial beams. In lieu of sacrificial beams, TXDOT found that the pillars were vulnerable so care was put in directing wayward trucks away from the support pillars.
Thanks,
Jim