As a German, I'm kinda confused how that "truck" is called a "lorry". I think in Germany it would be classified as a PKW (Personal vehicle) [0], as opposed to an LKW (Cargo vehicle) [1].
I wonder how such a barrier would fare against an LKW with heavy cargo?
Doesn't "preventing from penetrating less" mean it allowed it to penetrate more?
If I prevent you from entering a password shorter than 8 characters that means you can either not enter a password or one with at least 8 characters. This is exactly analogous.
IWA 14: V/2,500(N1G)/48/90:4.5
IWA 14: V/7,200(N3C)/32/90:4.8
2,500 kg vehicle traveling at 48 km/h penetrates 4.5 metres
7,200 kg vehicle traveling at 32 km/h penetrates 4.8 metres
The article describes one part of the specification and links to a video demonstrating the other part.
Exactly, as the video title is "2,500 kg @ 30 mph"
So 7200kg is definitely a truck/lorry.
I suspect the author wrote that without seeing the footage, perhaps reading 'truck' and assuming it was a lorry being described by someone who wouldn't use the word, as above.
> Surface Guard Impact Test: IWA 14 - 2,500 kg @ 30 mph
So it's not a "7,200kg lorry". It's a 2,500 kg extended cab pickup.