People think, hope and expect that electrified roads will really happen. This is very very silly.
First I would like to remind that trolleybuses and trams are very old inventions. And they both run on electricity.
Secondly I would like to remind that power to run those is extremely high. Even for a car to have
any meaningful effect effective power transfer should be at least 15 kWh.
Due to efficiency losses input power per car should be at least 20 kWh. ONE vehicle!
This requires a lot of copper, per one feet. I would say even for one inch.
Now to make any meaningful sense this highway must be electrified for hundreds of miles/kilometers.
This will cost billions. Literally. Even if we find ultra-simple way to build that we need tons of copper
and copper will not get cheap because of demand (like in battery industry). More demand for copper
results higher cost of it. In addition to that we need to replace that copper structure often. Due to the fact
that we can NOT bury it in the lower asphalt layer. It will be so far away that efficiency will fall below 50% in ideal conditions.
Looking in the near future (few decades) there is absolutely no slightly positive outcomes that end with reasonable results.
Even if we look at wired up highways. https://www.scania.com/group/en/wp-cont ... lvag-1.jpg
It has big cost per mile. This is why it has been done only for low mileage high-usage city traffic (trolleybuses and trams).
Wired version is cheaper, in the order of magnitude - and it is still not happening. It could be done for hundred years already.Wireless roads are not going to happen any time soon - and even if they could happen, they don't make a slightest sense.
It is not possible to cover all roads. Therefore ALL normal vehicles must have tens of kilowatt-hours of batteries on board.
Adding wireless capability only on the car side will cost 20-40kWh of battery capacity + space for that capacity.