3 ms·

Electric engines will fix that; especially for trucks

dalanmiller 5y ago
But as the video states, 'rolling noise' becomes louder than ICE engine noise at 50km\h or higher. Tesla's driving by still make noise parting air and creating friction on the road.
- FredPret 5y ago
  I'm astonished every time I hear a truck or a bus huffing and puffing dramatically as it accelerates from 0 to maybe 10
  - numpad0 5y ago
    Which is insignificant in the context. The noises that video author discusses comes almost purely from tires rolling, at speeds where ICEs are basically silent compared to it.
  - throw0101a 5y ago
    At 7m30s the video states that rolling noise (tires) starts being same/louder than propulsion noise at 30 kph. Reducing speeds from 50 kph to 30 kph reduces noise by 6 dB (a change of 3 dB is halving/doubling). So yes, it's not surprising that 0-10/15 kph you hear the engine more.
- shusaku 5y ago
  > But as the video states I’m pretty sure 90% of the comments here are from people who didn’t watch the video. Which is a shame because it was really well done.
- r00fus 5y ago
  Anecdata but my house is near a road that has a particularly bad section where sound bounces and I can tell you we can’t hear the EVs that drive by but standard ICE rumble a lot.
elihu 5y ago
The video partially contradicts that. Electric motors are quieter than engines, but tire noise tends to be higher, since EVs tend to be heavier than their gas equivalents. I would, though, definitely like to banish the sound of idling diesel engines from cities. Replace diesel buses and garbage trucks, and fine the operators of ships, trains, and heavy industrial equipment based on the amount of noise they generate in an urban area.
- brokenmachine 5y ago
  >fine the operators of ships, trains, and heavy industrial equipment based on the amount of noise they generate in an urban area This is the part that I like. Why shouldn't ruining the environment be costly? 120dB leaf blower? $200 more expensive than the quiet one. And measure car/motorbike noise for registration and have a fee for every decibel. I can dream, can't I?
lm28469 5y ago
Berlin recently started using 100% electric busses, they're still loud as fuck

But as the video states, 'rolling noise' becomes louder than ICE engine noise at 50km\h or higher. Tesla's driving by still make noise parting air and creating friction on the road.

FredPret 5y ago
I'm astonished every time I hear a truck or a bus huffing and puffing dramatically as it accelerates from 0 to maybe 10
- numpad0 5y ago
  Which is insignificant in the context. The noises that video author discusses comes almost purely from tires rolling, at speeds where ICEs are basically silent compared to it.
- throw0101a 5y ago
  At 7m30s the video states that rolling noise (tires) starts being same/louder than propulsion noise at 30 kph. Reducing speeds from 50 kph to 30 kph reduces noise by 6 dB (a change of 3 dB is halving/doubling). So yes, it's not surprising that 0-10/15 kph you hear the engine more.
shusaku 5y ago
> But as the video states I’m pretty sure 90% of the comments here are from people who didn’t watch the video. Which is a shame because it was really well done.
r00fus 5y ago
Anecdata but my house is near a road that has a particularly bad section where sound bounces and I can tell you we can’t hear the EVs that drive by but standard ICE rumble a lot.

elihu 5y ago

The video partially contradicts that. Electric motors are quieter than engines, but tire noise tends to be higher, since EVs tend to be heavier than their gas equivalents. I would, though, definitely like to banish the sound of idling diesel engines from cities. Replace diesel buses and garbage trucks, and fine the operators of ships, trains, and heavy industrial equipment based on the amount of noise they generate in an urban area.

brokenmachine 5y ago
>fine the operators of ships, trains, and heavy industrial equipment based on the amount of noise they generate in an urban area This is the part that I like. Why shouldn't ruining the environment be costly? 120dB leaf blower? $200 more expensive than the quiet one. And measure car/motorbike noise for registration and have a fee for every decibel. I can dream, can't I?

lm28469 5y ago

Berlin recently started using 100% electric busses, they're still loud as fuck