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No, cities would not. EVs make more noice at city speeds than an equivalent ICE. The biggest problem is the tyres they use, so an easy fix some day. (PDF warni

by Dah00n 3y ago

No, cities would not. EVs make more noice at city speeds than an equivalent ICE. The biggest problem is the tyres they use, so an easy fix some day. (PDF warning) https://www.vejdirektoratet.dk/sites/default/files/publications/noise_from_electric_vehicles_0.pdf https://www.vejdirektoratet.dk/sites/default/files/publicati...

bryanlarsen 3y ago
Your pdf does not support your assertion. Quoting the conclusion: EV’s are 4-5 dB less noisy than similar ICE at low speed when driving at steady speed. But at about 30 km/h the difference in emitted noise is not significant. For speeds higher than 30 km/h the tire/road noise gets dominant and from there on the choice of tire is more essential to noise reduction.
- Dah00n 3y ago
  That's exactly what I said. >For speeds higher than 30 km/h the tire/road noise gets dominant and from there on the choice of tire is more essential to noise reduction. City speed is 50km/h and EVs for some reason comes with loud tires.
ladberg 3y ago
Define city speeds? Because this is pretty objectively false at the speeds cars usually drive in all the cities I've lived in. Even the pdf you linked has an EV being recorded louder than an ICE at only a single speed out of all the different speeds and cars they chose.
- Dah00n 3y ago
  No need for me to define anything. The research is from Denmark where, like most of EU cities, the city limit is 50km/h. I have never lived in any city with anything else than 50km/h being the limit and closely to the average.
lowbloodsugar 3y ago
Love it when people make a claim and post a PDF like it's evidence. From your PDF: "The steady speed results of the Nissan Leaf and the Golf variant and the polynomial trend lines are shown in Figure 8. For all the measurements speeds the Leaf [EV] emits less noise than the Golf [ICE]." This is measuring 10kph to 70kph. Also these are small European vehicles compared to other small European vehicles. You won't see those so much in a downtown US city. Consider that the volume in US cities is from the noisiest cars. It doesn't matter if the average car is just as quiet as an EV - it matters what the average total noise is, and that depends on a few loud cars. Likewise pollution. One "rolling coal" fuckwit is all it takes.
- Dah00n 3y ago
  I'm sorry you don't agree with a conclusion that is based on facts just because your country is different. Still the facts are facts. At 50km/h -city limit in most of EU- EVs are louder. I'm pro EVs so please stop reading things into what I said that I didn't actually say. I specifically said the problem is the tyres.
  - lowbloodsugar 3y ago
    You are responding to an article about EVs in the USA with data for Europe. But lets stick with Europe and your PDF. You have cherry picked the exact one place where "EVs" are "louder". Specifically you picked: 1. A commercial EV van. 2. Traveling at 50km/h. 3. At a steady state. In every other measurement, the EVs were quieter: 1. The passenger EV is always quieter. 2. The commercial EV is quieter at any other speed. 3. Both EVs are quieter at anything other than steady state, i.e accelerating or decelerating. My experiences of European towns and cities are that cars stop and go a lot. In pedestrian areas or residential areas are often limited to below 50km/h. And again, I remind you that these vehicles were themselves cherry picked and are not representative of vehicles on the road in the USA or Europe. My mum drives a diesel passenger car and it is assuredly not quieter than any EV even when it's not moving - and that's a car that is in good working order. And even then, the conclusion from this paper is: "In urban areas where the speed it often above 30 km/h the introduction of EV’s will not have a great influence on the traffic noise."

by Dah00n 3y ago

bryanlarsen 3y ago

Your pdf does not support your assertion. Quoting the conclusion: EV’s are 4-5 dB less noisy than similar ICE at low speed when driving at steady speed. But at about 30 km/h the difference in emitted noise is not significant. For speeds higher than 30 km/h the tire/road noise gets dominant and from there on the choice of tire is more essential to noise reduction.

Dah00n 3y ago
That's exactly what I said. >For speeds higher than 30 km/h the tire/road noise gets dominant and from there on the choice of tire is more essential to noise reduction. City speed is 50km/h and EVs for some reason comes with loud tires.

ladberg 3y ago

Define city speeds? Because this is pretty objectively false at the speeds cars usually drive in all the cities I've lived in. Even the pdf you linked has an EV being recorded louder than an ICE at only a single speed out of all the different speeds and cars they chose.

Dah00n 3y ago
No need for me to define anything. The research is from Denmark where, like most of EU cities, the city limit is 50km/h. I have never lived in any city with anything else than 50km/h being the limit and closely to the average.

lowbloodsugar 3y ago

Love it when people make a claim and post a PDF like it's evidence. From your PDF: "The steady speed results of the Nissan Leaf and the Golf variant and the polynomial trend lines are shown in Figure 8. For all the measurements speeds the Leaf [EV] emits less noise than the Golf [ICE]." This is measuring 10kph to 70kph. Also these are small European vehicles compared to other small European vehicles. You won't see those so much in a downtown US city. Consider that the volume in US cities is from the noisiest cars. It doesn't matter if the average car is just as quiet as an EV - it matters what the average total noise is, and that depends on a few loud cars. Likewise pollution. One "rolling coal" fuckwit is all it takes.

Dah00n 3y ago
I'm sorry you don't agree with a conclusion that is based on facts just because your country is different. Still the facts are facts. At 50km/h -city limit in most of EU- EVs are louder. I'm pro EVs so please stop reading things into what I said that I didn't actually say. I specifically said the problem is the tyres.
- lowbloodsugar 3y ago
  You are responding to an article about EVs in the USA with data for Europe. But lets stick with Europe and your PDF. You have cherry picked the exact one place where "EVs" are "louder". Specifically you picked: 1. A commercial EV van. 2. Traveling at 50km/h. 3. At a steady state. In every other measurement, the EVs were quieter: 1. The passenger EV is always quieter. 2. The commercial EV is quieter at any other speed. 3. Both EVs are quieter at anything other than steady state, i.e accelerating or decelerating. My experiences of European towns and cities are that cars stop and go a lot. In pedestrian areas or residential areas are often limited to below 50km/h. And again, I remind you that these vehicles were themselves cherry picked and are not representative of vehicles on the road in the USA or Europe. My mum drives a diesel passenger car and it is assuredly not quieter than any EV even when it's not moving - and that's a car that is in good working order. And even then, the conclusion from this paper is: "In urban areas where the speed it often above 30 km/h the introduction of EV’s will not have a great influence on the traffic noise."