Guardrail Installation I 75

Transportation Manager Matt Harvey says “We have two styles that were installed. One style is that same style, they just changed the head a little bit to enclose it to aid in the curling. The other one is flat, and it goes along the ground. Instead of being curled up and going off to the side, this actually gets forced to the ground, and you actually kind of run over it.
The two ends that were installed were actually MASH tested, and these are the first two in Ohio, so we are excited about having the first ones in Ohio to see how they perform.
Everything has to do with safety out in the highways. As vehicles get bigger and faster, you need these attenuators or guardrails to be about to be able to handle a larger impact. We’ll put them out there and we’ll see what happens, and in the future, depending on what style we decide to go with as a guardrail gets hit, they will be replaced with new MASH tested ends”

[@Fiberglasser03]

"We're excited to have the first ones in Ohio to see how they perform." Translation: We can't wait for someone to hit one of these to see what happens.

[@dejorgensen10]

I was wondering if you have a video of the "Soft Stop" End section test videos? OR any videos of the end section under impact.

[@mikehorb9485]

Sorry for your loss. I’m not sure that bolt would be the cause of the failure. The force of a car collision is enough sheering strength to cut through the shank, shear off the head, and if hit from an odd angle, strip the threads clean out. I’m picturing myself with an impact and a galvanized 3/4 inch bolt, and a half decent but really maybe a 4 mil thick washer, and bolting the face of the guard rail to the second post. No shot the head of that bolt says on. Either the bolt and washer are strong, and the extruded sheet steel of the rail rips and pulls away, or the head of the bolt and washer shear off. And I understand the difference in torsional strength and shear strength. If anything, these implements should be designed with hardware designed to fail at certain points to help with the collapse/crumple of the barrier.

[@Kaleb99j]

I don't know who you are responding to but one bolt in the wrong place can jam up the system and send it either through your windshield or over your car.

[@mikehorb9485]

@@Kaleb99j You read my post. I’ve already explained why that’s not true. I’m talking about the physical dynamics of fasteners. You’re regurgitating Tik-Tok brain rot.