Polarization and headlights and reflections

Would it be good to put a polarizing filter in car headlights with a somewhat opposed filter in vehicle windshields to dim the oncoming headlights?
The gains of not being blinded by oncoming cars seems pretty clear, but then how much would visibility from your own vehicle’s lights be diminished?

The occasional stealth vehicle or person would quickly turn these cars into death machines so this warrants some consideration.

Well, you would loose 50% of your possible brightness right off the bat.

Plus if your sunglasses were polarized the right (wrong) way you wouldn’t be able to see out!

Well, if you were to do this, you’d obviously polarize windshields the same way as sunglasses. It’s not like they’re random; the whole point of polarized sunglasses is that glare tends to be polarized horizontally, so vertical polarizers will cut off glare more than overall ambient light.

I don’t have an answer to your question. I have recently found relief from overly bright headlights, some yellow orange tinted goggles made for the purpose.

Your idea may or may not be good, but you should to find the goggles or sun glasses somewhere. I was given the ones I have, but they are common enough you shouldn’t have trouble finding them. They seem to cut the glare, leaving your vision clear.

i.e. “selective yellow,” the color fog lamps used to be. Filters out the blue component which is what causes the annoyance of glare.

I think I heard of this idea back in the '60s.