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Reflective Pavements #4463818
07/19/17 09:36 AM
07/19/17 09:36 AM
Joined: May 2015
Posts: 2,011
America
Alfred_B Online content OP
Alfred_B  Online Content OP
Joined: May 2015
Posts: 2,011
America
What do you think about the experiment in Los Angeles where they are changing regular pavement into reflective pavement (they apply a light colored sealant)? It cools the surface by 10-30 degrees and is estimated to save $100,000 in electricity costs per year.

https://twitter.com/BSSLosAngeles/status/887044828776734721

Re: Reflective Pavements [Re: Alfred_B] #4463832
07/19/17 09:50 AM
07/19/17 09:50 AM
Joined: Aug 2011
Posts: 9,560
Boston, MA
HerrStig Offline
HerrStig  Offline
Joined: Aug 2011
Posts: 9,560
Boston, MA
Are they using gold color paint?

Re: Reflective Pavements [Re: Alfred_B] #4463852
07/19/17 10:09 AM
07/19/17 10:09 AM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline
Joined: Jan 2017
Posts: 1,139
USA
How does it save electricity costs of $100K/annually?
Does it adversely affect braking distance when wet?
How long does it last before it requires a recoat?
How much does the labor and materials and taking the road out of service during this process cost?

For that matter, why is a roadway that is 10* cooler a big advantage?

It looks nice...can I get this product for my driveway?


Multiple Diesel and Gasoline vehicles
Re: Reflective Pavements [Re: HerrStig] #4463853
07/19/17 10:09 AM
07/19/17 10:09 AM
Joined: Oct 2004
Posts: 3,183
Midwest, Illinois
beanoil Offline
beanoil  Offline
Joined: Oct 2004
Posts: 3,183
Midwest, Illinois
Originally Posted By: HerrStig
Are they using gold color paint?

Doubt it. It's California.
Has to be a low VOC, renewable, non polluting, converter equipped layer of environmentally friendly hog wash.
We do that here in the Midwest too. It's called snow. Saves on AC for several months out of the year.

Last edited by beanoil; 07/19/17 10:13 AM.

beanoil: Tough under heat, real dirty afterwards.
Re: Reflective Pavements [Re: Alfred_B] #4463865
07/19/17 10:22 AM
07/19/17 10:22 AM
Joined: Dec 2010
Posts: 436
Indianapolis, IN
09_GXP Offline
09_GXP  Offline
Joined: Dec 2010
Posts: 436
Indianapolis, IN


2017 Miata Global Cup Car #02 - Castol A3/B4 5w30 w/ OEM Fitler
2017 Miata RF - PP 0w20 w/ M1 Filter
2015 F-150 2.7L Ecoboost - PPPP 5w30 w/ MC
Re: Reflective Pavements [Re: beanoil] #4463882
07/19/17 10:37 AM
07/19/17 10:37 AM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline
Joined: Jan 2017
Posts: 1,139
USA
Originally Posted By: beanoil
Originally Posted By: HerrStig
Are they using gold color paint?

Doubt it. It's California.
Has to be a low VOC, renewable, non polluting, converter equipped layer of environmentally friendly hog wash.
We do that here in the Midwest too. It's called snow. Saves on AC for several months out of the year.


Yeah but you guys in the Midwest spend millions to remove that snow with chemicals very harmful to my beautiful steel.

I hear you on the type of sealant it must be in CA.

Its like when the US switched the formulas for the paint used in striping roadways to an environmentally friendly type...now those lines need to repainted approximately 5-6 times as often. Was the outcome worth it? Well there are probably some greenies who now sleep more soundly at night listening to NPR. grin


Multiple Diesel and Gasoline vehicles
Re: Reflective Pavements [Re: beanoil] #4463984
07/19/17 12:17 PM
07/19/17 12:17 PM
Joined: Dec 2009
Posts: 26,210
Regina, Saskatchewan, Canada
Garak Online content
Garak  Online Content
Joined: Dec 2009
Posts: 26,210
Regina, Saskatchewan, Canada
Originally Posted By: beanoil
Originally Posted By: HerrStig
Are they using gold color paint?

Doubt it. It's California.

Probably has to be real gold. wink


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Reflective Pavements [Re: 09_GXP] #4463989
07/19/17 12:21 PM
07/19/17 12:21 PM
Joined: Aug 2004
Posts: 1,404
VA
Rhymingmechanic Offline
Rhymingmechanic  Offline
Joined: Aug 2004
Posts: 1,404
VA


Thanks for that extra info. I wonder if a similar result can be achieved by repaving the streets with concrete when they need it.

Replacing asphalt with lighter material, along with planting more trees and using reflective roofing like the article explains, seems like a sensible combination to reduce the "urban heat island" effect. Darker materials absorb heat and lighter ones reflect it. Even my relatively small metro area illustrates what they're trying to address--the summer temperature and overnight low in the city center is always a few degrees higher than the suburbs and more rural outskirts.

I heard a radio story--on NPR, no less--that said Atlanta actually influences its own weather with this heat effect. To check my memory, I just did a quick Google search and came up with results from Atlanta Magazine, National Geographic, and this article: http://www.weatherwise.org/archives/back%20issues/2010/march-april%202010/atlanta-full.html

Re: Reflective Pavements [Re: Alfred_B] #4464010
07/19/17 12:34 PM
07/19/17 12:34 PM
Joined: Apr 2010
Posts: 13,537
Chicago, IL
dparm Offline
dparm  Offline
Joined: Apr 2010
Posts: 13,537
Chicago, IL
Phoenix has similar problems. Residents there have slowly changed the climate over the past few decades because so many of them insisted on having grass lawns and watering the [censored] out of them. This, coupled with the explosive growth of the metro area, have only made the Colorado River problems even worse.

Tucson, only about 2 hours south, has mostly the opposite approach: zeroscaping. No grass, just rocks in the front yard.


2017 Chevrolet Corvette Grand Sport
Re: Reflective Pavements [Re: Alfred_B] #4464019
07/19/17 12:43 PM
07/19/17 12:43 PM
Joined: Dec 2013
Posts: 3,989
Manchester, England
Olas Offline
Olas  Offline
Joined: Dec 2013
Posts: 3,989
Manchester, England
Heat is your friend. Oil and coolant and tyres and brakes all like to be hot.
Until I see it I can't help but feel that it will be slippery when wet.


Cable ties should hold it
Re: Reflective Pavements [Re: Alfred_B] #4464128
07/19/17 02:39 PM
07/19/17 02:39 PM
Joined: Oct 2014
Posts: 12,578
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 12,578
Idaho
The voters will vote a tax increase to fund the coloring. It is for the children.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Reflective Pavements [Re: ArcticDriver] #4464210
07/19/17 04:00 PM
07/19/17 04:00 PM
Joined: Aug 2011
Posts: 9,560
Boston, MA
HerrStig Offline
HerrStig  Offline
Joined: Aug 2011
Posts: 9,560
Boston, MA
Originally Posted By: ArcticDriver
Originally Posted By: beanoil
Originally Posted By: HerrStig
Are they using gold color paint?

Doubt it. It's California.
Has to be a low VOC, renewable, non polluting, converter equipped layer of environmentally friendly hog wash.
We do that here in the Midwest too. It's called snow. Saves on AC for several months out of the year.


Yeah but you guys in the Midwest spend millions to remove that snow with chemicals very harmful to my beautiful steel.

I hear you on the type of sealant it must be in CA.

Its like when the US switched the formulas for the paint used in striping roadways to an environmentally friendly type...now those lines need to repainted approximately 5-6 times as often. Was the outcome worth it? Well there are probably some greenies who now sleep more soundly at night listening to NPR. grin
If I listened to Not Particularly Reliable radio I wouldn't be able to sleep at night for fear of Russians everywhere. smile

Re: Reflective Pavements [Re: Alfred_B] #4464279
07/19/17 06:02 PM
07/19/17 06:02 PM
Joined: Jul 2009
Posts: 745
texas
danez_yoda Offline
danez_yoda  Offline
Joined: Jul 2009
Posts: 745
texas
not when these guys get a hold of it.


Last edited by danez_yoda; 07/19/17 06:04 PM.
Re: Reflective Pavements [Re: Alfred_B] #4464586
07/20/17 05:33 AM
07/20/17 05:33 AM
Joined: Nov 2008
Posts: 12,761
NH
supton Offline
supton  Offline
Joined: Nov 2008
Posts: 12,761
NH
I have to wonder if it'll be miserable to drive on, at certain hours of the day. Just like how it can be awful to drive when the sun comes out after a sudden rain.


2011 Toyota Camry, base, 2.5L/6MT, 170k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 144k, ours
1999 Toyota Camry LE, 2.2L/4AT, 195k, his
Re: Reflective Pavements [Re: Rhymingmechanic] #4464618
07/20/17 06:31 AM
07/20/17 06:31 AM
Joined: Mar 2010
Posts: 5,368
Iowa
The_Eric Offline
The_Eric  Offline
Joined: Mar 2010
Posts: 5,368
Iowa
Originally Posted By: Rhymingmechanic


Thanks for that extra info. I wonder if a similar result can be achieved by repaving the streets with concrete when they need it.

Replacing asphalt with lighter material, along with planting more trees and using reflective roofing like the article explains, seems like a sensible combination to reduce the "urban heat island" effect. Darker materials absorb heat and lighter ones reflect it. Even my relatively small metro area illustrates what they're trying to address--the summer temperature and overnight low in the city center is always a few degrees higher than the suburbs and more rural outskirts.

I heard a radio story--on NPR, no less--that said Atlanta actually influences its own weather with this heat effect. To check my memory, I just did a quick Google search and came up with results from Atlanta Magazine, National Geographic, and this article: http://www.weatherwise.org/archives/back%20issues/2010/march-april%202010/atlanta-full.html
I'm pretty sure that wouldn't work out as you planned. Concrete will still absorb solar energy and give it off once the sun goes down. Trees, depending on the area may not be a good idea either as they require water- which is getting scarce.


2005 Lincoln Aviator 4.6 DOHC
2000 Honda Accord 2.3
2001 Hyundai Elantra 2.0
1979 Ford F-150 351M
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