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You are in for a cold shower. Above 35 km/h (~22 mph) tire noise becomes the dominant factor. Besides, a large part of a modern vehicle's engine noise is design

You are in for a cold shower. Above 35 km/h (~22 mph) tire noise becomes the dominant factor. Besides, a large part of a modern vehicle's engine noise is designed. Some cars even go as far as play engine noises through added speakers.

mcot2 7y ago
Source? Does this hold true for diesel trucks and buses and garbage trucks which are very common in cities?
- cowsandmilk 7y ago
  > Does this hold true for diesel trucks and buses and garbage trucks which are very common in cities? I know from the hybrid buses in Boston that they are a massive reduction in noise for the passengers. When you're at a stop, it is great to not have that engine idling. Electric will only be better in that regard. The garbage trucks though seem to make a shit load of brake noise though. And noise from trash dumping on top of trash and being compacted.
  - concert-gilled 7y ago
    Won't electric trucks use regenerative braking?
- PeterStuer 7y ago
  Below is a non-technical article on the subject. Large heavy utility diesel trucks like garbage trucks have huge engines, extreme start-stop patterns, lots of shifting. Those are loud by themselves. Also, they are low production volume and are only noise insulated in as far as regulation requires them. https://www.washingtonpost.com/business/economy/americas-best-selling-cars-and-trucks-are-built-on-lies-the-rise-of-fake-engine-noise/2015/01/21/6db09a10-a0ba-11e4-b146-577832eafcb4_story.html https://www.washingtonpost.com/business/economy/americas-bes...
Al-Khwarizmi 7y ago
The best noise reduction measure in cities is to limit cars to 30 km/h. Which, by the way, also actually reduces the time it takes to get to places by car (because you need fewer traffic lights), apart from obviously making the city much safer for bikes and pedestrians.
VBprogrammer 7y ago
This might be the case in the US since most cars are 'gas' (petrol) powered. However, in much of Europe diesel powered cars are extremely common. Also, at least in London, the average speed for a car is <20mph.

mcot2 7y ago

Source? Does this hold true for diesel trucks and buses and garbage trucks which are very common in cities?

cowsandmilk 7y ago
> Does this hold true for diesel trucks and buses and garbage trucks which are very common in cities? I know from the hybrid buses in Boston that they are a massive reduction in noise for the passengers. When you're at a stop, it is great to not have that engine idling. Electric will only be better in that regard. The garbage trucks though seem to make a shit load of brake noise though. And noise from trash dumping on top of trash and being compacted.
- concert-gilled 7y ago
  Won't electric trucks use regenerative braking?
PeterStuer 7y ago
Below is a non-technical article on the subject. Large heavy utility diesel trucks like garbage trucks have huge engines, extreme start-stop patterns, lots of shifting. Those are loud by themselves. Also, they are low production volume and are only noise insulated in as far as regulation requires them. https://www.washingtonpost.com/business/economy/americas-best-selling-cars-and-trucks-are-built-on-lies-the-rise-of-fake-engine-noise/2015/01/21/6db09a10-a0ba-11e4-b146-577832eafcb4_story.html https://www.washingtonpost.com/business/economy/americas-bes...

Al-Khwarizmi 7y ago

The best noise reduction measure in cities is to limit cars to 30 km/h. Which, by the way, also actually reduces the time it takes to get to places by car (because you need fewer traffic lights), apart from obviously making the city much safer for bikes and pedestrians.

VBprogrammer 7y ago

This might be the case in the US since most cars are 'gas' (petrol) powered. However, in much of Europe diesel powered cars are extremely common. Also, at least in London, the average speed for a car is <20mph.