I assume it’s inductive charging. Could be a good idea for one lane on major roads if EV become real popular. I wonder how much cancer that high an inductive field would cause. Continuous CT scan level fields or would it be more like MRI.
Cancer aspects? Probably low risk is my guess.
One source said the EMF would be about 62 milligauss. Another source says EMF over 1000 milligauss is enough to cause harm.
Who knows? If something like this were to actually go forward I am sure more studies would be undertaken. No shortage of researchers willing to get the funding I am sure.
https://www.eiwellspring.org/misc/ElectricRoadHurts.htm
https://www.ehs.iastate.edu/sites/default/files/uploads/publications/manuals/emf.pdf