The main issue is that everything movable or deformable is going to get absolutely wrecked by vehicles, in short order.
Even old-fashioned speed bumps get severe ridges worn into them by vehicles that go too fast. They need to be repaired after a year or two. And even if that doesn't happen, they experience severe forces from wheels, every single day.
You (and the non-newtonian bump mentioned in the article) suggest basically a rubber bag filled with fluid. Instead of getting ridges worn into them, they're going to get punctured and destroyed.
There's a reason the system mentioned in the article is only shown in parking garages. It only works indoors (because of UV), and it only works at relatively low speeds, where the forces are lower, and the risk of undercarriage hits is very small.
I hate speed bumps, but it's extremely hard to find a workable alternative. Personally, I prefer chicanes.
Fair enough, although if you were using a hydraulic system you could be raising and lowering a concrete berm with your system which would take the wear and tear.
In Las Vegas they had very deep 'gullys' on either side of a street to facilitate flash floodwater and where those 'flood streets' crossed others there were 'speed ditches' :-) They were very effective as the wear and tear occurred on the car that was grounding out after going over them too quickly.
Chicanes are ok but people who try to go through them too fast and get stuck after colliding with one side or the other cause problems.
Ah, I learned a new word. These serpentine roadways are used to slow the advance of cars on a guarded gate or outpost in military situations. They're pretty annoying to drive through but that probably means they working correctly.
Even old-fashioned speed bumps get severe ridges worn into them by vehicles that go too fast. They need to be repaired after a year or two. And even if that doesn't happen, they experience severe forces from wheels, every single day.
You (and the non-newtonian bump mentioned in the article) suggest basically a rubber bag filled with fluid. Instead of getting ridges worn into them, they're going to get punctured and destroyed.
There's a reason the system mentioned in the article is only shown in parking garages. It only works indoors (because of UV), and it only works at relatively low speeds, where the forces are lower, and the risk of undercarriage hits is very small.
I hate speed bumps, but it's extremely hard to find a workable alternative. Personally, I prefer chicanes.