idb
Gold Member
- Dec 26, 2010
- 14,968
- 2,565
Wow...it's almost as if they've done some research!
Reading this thread I thought someone had just woken up one morning and decided to paint the town.
Cool Pavement Pilot Project
Temperatures in Southern California are rising as a result of climate change. Thanks to Councilmember Blumenfield’s leadership and support, the Bureau will be fighting even harder against global warming with the cool pavement pilot project. The project involves applying a light gray coating onto the pavement that absorbs less heat than its darker asphalt counterpart. On May 20th, Jordan Ave. in Council District 3 was the first of its kind in California to test the cool seal on a public street. Results from this preliminary testing have shown the coating reducing temperatures +10 degrees. The goal of these efforts are reducing the risk of heat-related deaths, to save energy by reducing air conditioning, and replicate these results in each council districts designated streets.
http://bss.lacity.org/PDFs/STREET_TALK_2017_05.pdf
The coating, which costs $40,000 per mile and lasts for seven years, will be applied to streets in a pilot program before it is applied citywide.
Why Los Angeles has started to paint its streets white
As part of that effort, Los Angeles is coating its roads in CoolSeal, a gray paint that keeps streets and parking lots 10 degrees cooler than black asphalt. Engineers developed the material for military air bases to keep spy planes cool while they rest on the tarmac. This can help them avoid being detected by satellite-mounted infrared cameras, which measure heat.
LA Paints Its Streets White To Keep The City Cooler | CleanTechnica
One tactic for achieving that goal may involve coating city streets in a substance known as CoolSeal, a gray-colored coating designed to reflect solar rays. City officials said CoolSeal has already shown promising results. The coating was first tested in 2015 on a parking lot in the San Fernando Valley, one of the hottest parts of town, according to Greg Spotts, the assistant director of the Bureau of Street Services, which oversaw the testing. Summer temperatures in the area — which average in the upper 80s — have climbed above 100 degrees multiple times over the past year.
“We found that on average the area covered in CoolSeal is 10 degrees cooler than black asphalt on the same parking lot,” Spotts said. “We thought it was really interesting. It’s almost like treated asphalt warms at a lower rate.”
City officials claim Los Angeles is the first U.S. city to test cool pavement to fight urban heat.
To determine whether CoolSeal is cost-effective and how it influences drivers, Spotts said his agency has applied the product to designated streets in 14 of the city’s 15 council districts, where it will be monitored and studied through the fall.
“We think that more than 10 percent of the city is asphalt — that’s 69,000 city blocks,” Spotts said. “There’s been estimates that suggest covering a third in the city’s pavement with a cooler materials might be able to move the needle on the city’s temperature.
“We’re not ready to do that, but we do want to explore what it might take to go big and take this thing to scale,” he added.
The coating costs about $40,000 per mile and lasts seven years, officials said.
Street Services is carrying out their pilot program with GuardTop, a California-based, asphalt coating manufacturer. The company began working with the defense industry to develop cool pavement for military spy planes, according to Jeff Luzar, GuardTop’s vice president of sales.
Why L.A. is coating its streets with material that hides planes from spy satellites
“We found that on average the area covered in CoolSeal is 10 degrees cooler than black asphalt on the same parking lot,” Spotts said. “We thought it was really interesting. It’s almost like treated asphalt warms at a lower rate.”
City officials claim Los Angeles is the first U.S. city to test cool pavement to fight urban heat.
Reading this thread I thought someone had just woken up one morning and decided to paint the town.
Cool Pavement Pilot Project
Temperatures in Southern California are rising as a result of climate change. Thanks to Councilmember Blumenfield’s leadership and support, the Bureau will be fighting even harder against global warming with the cool pavement pilot project. The project involves applying a light gray coating onto the pavement that absorbs less heat than its darker asphalt counterpart. On May 20th, Jordan Ave. in Council District 3 was the first of its kind in California to test the cool seal on a public street. Results from this preliminary testing have shown the coating reducing temperatures +10 degrees. The goal of these efforts are reducing the risk of heat-related deaths, to save energy by reducing air conditioning, and replicate these results in each council districts designated streets.
http://bss.lacity.org/PDFs/STREET_TALK_2017_05.pdf
The coating, which costs $40,000 per mile and lasts for seven years, will be applied to streets in a pilot program before it is applied citywide.
Why Los Angeles has started to paint its streets white
As part of that effort, Los Angeles is coating its roads in CoolSeal, a gray paint that keeps streets and parking lots 10 degrees cooler than black asphalt. Engineers developed the material for military air bases to keep spy planes cool while they rest on the tarmac. This can help them avoid being detected by satellite-mounted infrared cameras, which measure heat.
LA Paints Its Streets White To Keep The City Cooler | CleanTechnica
One tactic for achieving that goal may involve coating city streets in a substance known as CoolSeal, a gray-colored coating designed to reflect solar rays. City officials said CoolSeal has already shown promising results. The coating was first tested in 2015 on a parking lot in the San Fernando Valley, one of the hottest parts of town, according to Greg Spotts, the assistant director of the Bureau of Street Services, which oversaw the testing. Summer temperatures in the area — which average in the upper 80s — have climbed above 100 degrees multiple times over the past year.
“We found that on average the area covered in CoolSeal is 10 degrees cooler than black asphalt on the same parking lot,” Spotts said. “We thought it was really interesting. It’s almost like treated asphalt warms at a lower rate.”
City officials claim Los Angeles is the first U.S. city to test cool pavement to fight urban heat.
To determine whether CoolSeal is cost-effective and how it influences drivers, Spotts said his agency has applied the product to designated streets in 14 of the city’s 15 council districts, where it will be monitored and studied through the fall.
“We think that more than 10 percent of the city is asphalt — that’s 69,000 city blocks,” Spotts said. “There’s been estimates that suggest covering a third in the city’s pavement with a cooler materials might be able to move the needle on the city’s temperature.
“We’re not ready to do that, but we do want to explore what it might take to go big and take this thing to scale,” he added.
The coating costs about $40,000 per mile and lasts seven years, officials said.
Street Services is carrying out their pilot program with GuardTop, a California-based, asphalt coating manufacturer. The company began working with the defense industry to develop cool pavement for military spy planes, according to Jeff Luzar, GuardTop’s vice president of sales.
Why L.A. is coating its streets with material that hides planes from spy satellites
“We found that on average the area covered in CoolSeal is 10 degrees cooler than black asphalt on the same parking lot,” Spotts said. “We thought it was really interesting. It’s almost like treated asphalt warms at a lower rate.”
City officials claim Los Angeles is the first U.S. city to test cool pavement to fight urban heat.
