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garygid
Gold Member
Posts: 12439
Joined: Wed Apr 21, 2010 8:10 am
Delivery Date: 29 Mar 2011
Leaf Number: 000855
Location: Laguna Hills, Orange Co, CA

Re: Uncomfortable Road Noise

Fri Oct 14, 2011 8:55 pm

Our local freeways have some fairly long sections that have been ground down for smoothness,
and that reduces the noise a bit, and removes the thump-thump sounds. :D

Other long sections have a noise-dampening (recycled rubber tires and
walnut shells?) "asphalt-type" coating of some sort that almost eliminates
the tire noise. These sections are a REAL JOY to drive the LEAF on ...
very quiet! :o
See SOC/GID-Meter and CAN-Do Info
2011 LEAF, sold in 2015
2010 Prius, 2014 silver Tesla S
Nissan EVSE, mod to 240/120v 16A
PU: SDG&E
Solar PV: 33 x 225W -> 7 kW max AC
To Sell: X-treme 5000Li EV motorcycle

Herm
Posts: 3765
Joined: Sun May 23, 2010 3:08 pm
Delivery Date: 29 Aug 2012
Location: Timbuktu, Mali

Re: Uncomfortable Road Noise

Fri Oct 14, 2011 9:42 pm

The hardest road surface (concrete) will be the loudest and have the lowest drag, the softer road will decrease your range and noise level. Like walking on wet sand.

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garygid
Gold Member
Posts: 12439
Joined: Wed Apr 21, 2010 8:10 am
Delivery Date: 29 Mar 2011
Leaf Number: 000855
Location: Laguna Hills, Orange Co, CA

Re: Uncomfortable Road Noise

Fri Oct 14, 2011 9:55 pm

The "ground-smooth" concrete is not very loud.

Rough, uneven, and groved surface can be quite loud, even without spalling or potholes.
See SOC/GID-Meter and CAN-Do Info
2011 LEAF, sold in 2015
2010 Prius, 2014 silver Tesla S
Nissan EVSE, mod to 240/120v 16A
PU: SDG&E
Solar PV: 33 x 225W -> 7 kW max AC
To Sell: X-treme 5000Li EV motorcycle

91040
Posts: 966
Joined: Fri Mar 11, 2011 10:36 pm
Delivery Date: 06 May 2011
Location: Los Angeles, CA

Re: Uncomfortable Road Noise

Fri Oct 14, 2011 10:06 pm

There is a section of the 710 that always sounds like barking dogs from the way the tires interact with the pavement.

Also, I think there was a section of the Pearblossom Highway that had grooves put in it to play "Happy Trails To You" if you drove the correct speed!
1st Capacity Bar loss 30k mi 16.25mo 2nd- 49k mi 25.5mo 51.5Ah
3rd- 73k mi 36.5mo 46.9Ah 71% SOH 50.9Hx 4th- 86.5k mi 43mo 42.61Ah 64% SOH 43.79Hx
5th- 101k mi 50.5mo 38.38Ah 58% SOH 37.02Hx Replaced Battery 9/28/15 104.2k mi 36.13Ah

emsik1001
Posts: 9
Joined: Fri Aug 07, 2015 8:00 am
Delivery Date: 07 Aug 2015
Contact: Website

Re: Uncomfortable Road Noise

Fri Aug 07, 2015 8:08 am

I can confirm my Nissan Leaf is also noisy at 60-70mph. Here are my dBs test results.

desiv
Posts: 594
Joined: Tue Jan 06, 2015 1:10 pm
Delivery Date: 04 Jan 2015
Leaf Number: 018850
Location: Lincoln City, Oregon

Re: Uncomfortable Road Noise

Fri Aug 07, 2015 8:22 am

emsik1001 wrote:I can confirm my Nissan Leaf is also noisy at 60-70mph. Here are my dBs test results.

So, basically you say this:
In summary, Nissan Leaf is not as quiet as you may think, and it is not just my perception! It actually is quite noisy on motorways and certain city road surfaces.


From what I see on your page, I take it as..
When the noise from outside is loud enough to be louder than an ICE engine (driving fast, bad road, rain, etc), then the Leaf is as loud as an ICE car..
To me, that's exactly as quiet as I might think... That's kind of what I would expect.. ;-)

But good to see the numbers to back it up..

Thanx,
desiv
2012 Leaf SL - Silver (gone - traded in)
2017 Bolt LT - Red

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Sondy132001
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Posts: 158
Joined: Thu Mar 05, 2015 2:38 pm
Delivery Date: 02 Mar 2015
Leaf Number: 016225
Location: Mission Viejo, CA

Re: Uncomfortable Road Noise

Fri Aug 07, 2015 8:40 am

You want loud roads ... from Stateline to Las Vegas has to be the loudest road I have ever driven on. I am guessing it's the grooves they have in the road surface for rain/flash floods, regardless it's ear piercing loud !
2012 Nissan Leaf SL with QC 23,362 miles as of 3/5/15 Cayenne Red Mission Viejo, CA

Lost my 4th bar @ 49,474 miles 11-19-17

aarond12
Posts: 381
Joined: Thu Jun 27, 2013 11:42 am
Delivery Date: 17 Oct 2015
Leaf Number: 311353
Location: Dallas, TX

Re: Uncomfortable Road Noise

Fri Aug 07, 2015 8:49 am

2012 Mitsubishi i-MiEV ES (lease ended) • 2015 Nissan LEAF S • Tesla Model 3 reserved
Mods: Matte black Juke wheels, LED headlights and accessory lights, horn, CarPlay receiver

emsik1001
Posts: 9
Joined: Fri Aug 07, 2015 8:00 am
Delivery Date: 07 Aug 2015
Contact: Website

Re: Uncomfortable Road Noise

Sat Aug 08, 2015 12:44 am

When the noise from outside is loud enough to be louder than an ICE engine (driving fast, bad road, rain, etc), then the Leaf is as loud as an ICE car..
To me, that's exactly as quiet as I might think... That's kind of what I would expect.. ;-)


I was hoping Nissan would pay extra attention to noise reduction, and I would get fewer dBs at high speed compared to a 10 year old ICE car.

I've read somewhere the headlights reduce wind noise, it's a bit of a shame no special attention was taken for motorway speeds, but I suspect they focused on city driving experience and not money saving motorway driving :)

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SalisburySam
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Posts: 203
Joined: Thu Sep 27, 2012 11:01 am
Delivery Date: 24 Feb 2012
Leaf Number: 018156
Location: Salisbury, NC

Re: Uncomfortable Road Noise

Sat Aug 08, 2015 6:04 am

DesertDenizen wrote:When I drive over roads with cracks in the pavement, around 30 mph with the window down, I hear both tire noise smacking the crack and a metallic clack as I drive over each crack. Maybe I should keep my window closed.

Absolutely love the phrase: "...smacking the crack and a metallic clack..." Could easily be the beginnings of Pitbull's next major rap hit. I'd reach out to his agent and make an offer.
SalisburySam
-------------

2012 SL Super Black
12,900 miles, 10 bars showing, 75% SOH, 49.80 Ahr

Model 3 - Long Range, Premium Upgrade, Extended AutoPilot, Full Self-Driving, 15 miles on odo
Delivered: July 19, 2018
Ecstatic-ness began: July 19, 2018

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