Slotcar track that has been scaled up, so: arcing, dangerous, will wear, finicky as hell and impossible to change lanes without losing contact. Probably not the best idea but props for trying.
Säll said: “There is no electricity on the surface. There are two tracks, just like an outlet in the wall. Five or six centimetres down is where the electricity is. But if you flood the road with salt water then we have found that the electricity level at the surface is just one volt. You could walk on it barefoot.”
They also mentioned they turn off each segment if there is not a car on it. Each segment is 50 meters.
My follow-up concern is, what if, under these salty and wet conditions, something causes a short circuit between the powered rails?
e.g., either a defective vehicle-side contact where the anode and cathode allow for the water and salt to close a much smaller gap, or if someone deliberately sticks a piece of metal on there.
Stray current wreaks all sorts of havoc on electric light rail systems. I don't see why this would be different.
Arcing may also occur under high current situations with low voltage as long as an arc forms early in the disconnect (just test it on your car battery)