AVRIS, the USDOT’s bold initiative to upgrade roads for self-driving cars

> ... using solar panel road surfaces, with excess charge stored in giant capacitors and used to heat the road surface...

Ouch for anyone with rudimentary EE knowledge. Perhaps with kilometer-thick capacitors under the road... they by far don't have the capacity to do this.

And staying on road with snow-covered markings will be likely solved by relying on GPS, if it's not already.