1) Up to 1.5' is still pretty short for a normal bollard in the US. As mentioned they're usually at least 30-32" (sometimes even 40") not 18".
2) Ok, but we shouldn't design our safety infrastructure based on some hypothetical, we should base it off the actual realities of the spaces the equipment will be operating in.
3) So essentially just those little parking stop blocks, not actual bollards.
4) 100kg isn't going to do much to stop a 1,300kg vehicle going even 20km/h. You think two people are going to stop a car going that fast? The car will just keep moving after hitting one of these, assuming it doesn't just go right over it.
5) You really don't think there's a difference in export/import valuations internationally or that manufacturing costs differ between countries? A chunk of concrete made in Russia has vastly different economics from a chunk of concrete made in Germany from a chunk of concrete made in the US.
For example, a small parking stop block in the US costs like $60+, before delivery costs.
Here's an example of an actual concrete bollard sold in the US. Starting at $835/ea. Note these have a hollow core; they're kind of intended to be put on to a metal post embedded in the actual concrete because in an actual collision with a moving car the car would just push these out of the way. So really this is $835, after spending almost a thousand dollars on the metal post solidly integrated into the concrete slab below.
These (or the cheaper ~$1,000 ones) are the kinds of bollards 7/11 would be installing in front of their stores to protect customers. Which, comparing $2,800USD to $20USD, you can see why I had skepticism.
There's ~9,400 7/11 locations in the US. Lets say they install 6 bollards per location, and they go with the about $1,000 option. That's ~$56 million in just the costs of the bollards, without factoring in delivery to 9,400 sites. Also without factoring in any of the labor to install them, or the other material costs like the new concrete for the pad they're embedding into or the concrete filling the post. And the material cost for these bollards are cheap compared to paying the people to actually plan them, source them, install them, paint them, and inspect them. So realistically I'd imagine it would cost 7/11 probably at least a couple hundred million dollars to just install six new bollards at every one of their US locations.
> Ok, but we shouldn't design our safety infrastructure based on some hypothetical, we should base it off the actual realities of the spaces the equipment will be operating in.
I think it's reasonable for a non-US person to discuss safety infrastructure based on the actual realities of non-US spaces - I agree that things need scaling up to work equivalently on your side of the pond but europe is not actually a hypothetical :)
Remember that a combination of stupidly written emissions regulations and the ... uniqueness ... of the USian psyche lead between them to your vehicles being comically huge to the rest of the world.
The first thought that comes to mind for a european when we see an F-150 is to feel sorry for the owner's girlfriend.
90cm ~= 35", so roughly the height I was talking about before. Most other countries I've visited had bollards at ~90cm as well. Do you really see a lot of 20cm bollards around that are to actually stop a car and not just deter people from driving over something?
2) Ok, but we shouldn't design our safety infrastructure based on some hypothetical, we should base it off the actual realities of the spaces the equipment will be operating in.
3) So essentially just those little parking stop blocks, not actual bollards.
4) 100kg isn't going to do much to stop a 1,300kg vehicle going even 20km/h. You think two people are going to stop a car going that fast? The car will just keep moving after hitting one of these, assuming it doesn't just go right over it.
5) You really don't think there's a difference in export/import valuations internationally or that manufacturing costs differ between countries? A chunk of concrete made in Russia has vastly different economics from a chunk of concrete made in Germany from a chunk of concrete made in the US.
For example, a small parking stop block in the US costs like $60+, before delivery costs.
https://www.nitterhousemasonry.com/our-products/concrete-par...
Here's an example of an actual concrete bollard sold in the US. Starting at $835/ea. Note these have a hollow core; they're kind of intended to be put on to a metal post embedded in the actual concrete because in an actual collision with a moving car the car would just push these out of the way. So really this is $835, after spending almost a thousand dollars on the metal post solidly integrated into the concrete slab below.
https://www.belson.com/Round-Concrete-Security-Bollards
An example of the kind of post these would slip over: (only $2,800USD if you buy 50-99!)
https://www.reliance-foundry.com/shop/bollard/crash-rated/r-...
These (or the cheaper ~$1,000 ones) are the kinds of bollards 7/11 would be installing in front of their stores to protect customers. Which, comparing $2,800USD to $20USD, you can see why I had skepticism.
There's ~9,400 7/11 locations in the US. Lets say they install 6 bollards per location, and they go with the about $1,000 option. That's ~$56 million in just the costs of the bollards, without factoring in delivery to 9,400 sites. Also without factoring in any of the labor to install them, or the other material costs like the new concrete for the pad they're embedding into or the concrete filling the post. And the material cost for these bollards are cheap compared to paying the people to actually plan them, source them, install them, paint them, and inspect them. So realistically I'd imagine it would cost 7/11 probably at least a couple hundred million dollars to just install six new bollards at every one of their US locations.