I was thinking they should be connected with a steel cable at the bottom, and a hook inside the plastic shell, so if a car hits them, they grab on and start slowing the car down.
No. Each post should be solid enough to stop, or significantly slow a car on its own. They need to be built to protect vulnerable road users from cars. Slowing the cars gradually does not do that.
Cables under tension can snap back which makes your idea even more dangerous than just a concrete block.
Eh, there are genuine situations where you don’t want to stop the vehicle immediately, like say if this trucker came up on the other side and pushed the filming car into the bike line. Having a controlled line that brings the vehicle to a stop is much safer than having concrete and steel barriers that just shred the car and the occupants. Similar cable systems are already installed to stop cars, so the engineering has been done to prevent those dangerous snap-backs.
The goal should be to protect vulnerable road users. Solid metal or concrete blocks would be better because they would actively prevent cars from entering the bicycle lane.
The goal should be safety. A single solid pole in a line of breakaway poles is spiteful.
Those bollards need to be solid.
I was thinking they should be connected with a steel cable at the bottom, and a hook inside the plastic shell, so if a car hits them, they grab on and start slowing the car down.
No. Each post should be solid enough to stop, or significantly slow a car on its own. They need to be built to protect vulnerable road users from cars. Slowing the cars gradually does not do that.
Cables under tension can snap back which makes your idea even more dangerous than just a concrete block.
That’s how they are in Europe. Slam into one of those and you basically have to get a new car.
Eh, there are genuine situations where you don’t want to stop the vehicle immediately, like say if this trucker came up on the other side and pushed the filming car into the bike line. Having a controlled line that brings the vehicle to a stop is much safer than having concrete and steel barriers that just shred the car and the occupants. Similar cable systems are already installed to stop cars, so the engineering has been done to prevent those dangerous snap-backs.
Just one of them
The goal should be to protect vulnerable road users. Solid metal or concrete blocks would be better because they would actively prevent cars from entering the bicycle lane.
The goal should be safety. A single solid pole in a line of breakaway poles is spiteful.
Chaotic good.
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