Inductive loop will take a long time to show up on motorways, again down to capital investment vs gain. Most likely to show up as a niche where you have vehicles doing a high mileage, but periodically and predictably showing up at certain spots for a quick top up (think bus stops, traffic lights on bus lanes, taxi queues). Again this is down to the capex involved in digging up the road, and laying wires
Yes, except I have lost count of the number of times the M6 has been dug up, kind of seems to happen very regularly.
There are many inventor solutions doing the rounds including moles to put in the wires, sink in tarmac wires, place on top mats with charging panels,..
Whether any if these will be practical is unknowable without trucks etc, but if any of them work the whole process would go very quickly.
The obvious candidate for this are the railways, but near me there is a big crew struggling to put in an over head wire system on the railway, working, nights, weekends, making the train service unusable for a lot of users who are offered buses in lieu of trains.
Time to scrap the whole overhead wire nonsense & make battery trains, but the politicians seem determined to put in overhead wire trains no matter the cost, inconvenience & high maintenance costs or the near certainty of being scrapped in the short term.