Fuck Cars
A place to discuss problems of car centric infrastructure or how it hurts us all. Let's explore the bad world of Cars!
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That is wrong. EV tires are different to reduce noise, EVs have lower air drag, also to reduce noise. The phenomenon engineers have addressed is called tire roar, it is minimal in EVs because of tread design and an inner foam liner.
So I looked into it a tiny bit, and I am not surprised. These tires can reduce noise a bit indeed: mainly FOR THE PEOPLE INSIDE THE CAR because those notice it more now where they used to not notice it much because of their own engine being louder in the cabin.
Even if newer tires end up making it relatively more silent than older tires, the heavier vehicles (ever larger SUV's + very heavy battery) will probably mean it's a zero sum game compared to the old cars and tires. There is no magic tire eliminating the rubber-road surface noise. Cars on roads are noisy, the only thing effectively keeping the noise down is speed reduction in cities or building expensive tunnels.
Sources?
Why would air drag be lower? Big SUV cube = big SUV cube. The only difference is lack of air intake grill in front.
There are roads "near" me (750m - 1500 m) away with speed limits 80-120 km/h. That's already pretty damn far away compared to many other buildings in average cities, and there's lots of stuff in between me and the roads, like other buildings, parks, sound shield barriers next to the road, et cetera. Yet, when the wind is coming from that direction, it is very very loud, especially at night. Even at such far distance and it not being just open plains between the roads and me... I find it quite hard to believe there would suddenly be new fancy tires that reduces this noise, and mainly: why wouldn't the same tires be used on internal combustion cars then? There's also the "whisper" asphalt. Yeah, it means a dB or two less, but it sure as hell ain't fixing the problem completely for me.
I live right on the corner of a 50km/h collector street and the noise is terribly distracting. Not counting any of the souped up racing bikes or modded straight piped track cars that zip past, from my back yard you can hear the road noise from the traffic coming well before it actually arrives.