Archinect - News

Noise-disrupting fountains? Belgian cities are leading the world in anti-noise pollution urban strategy

2023-11-10T13:26:00-05:00

Noise pollution often underestimated but significantly impacting our lives, has become a pressing concern in major cities worldwide. From the bustling streets of Brussels to the vibrant ambience of Paris, urban dwellers are increasingly raising their voices against incessant noise.

Exposure to noise pollution above an annual average of 53 decibels has been shown to shorten lifespans for city dwellers. Brussels, where 70% of residents are at-risk, has begun experimenting with pleasing “soundscapes” among other, more practical interventions that include lower speed limits, added greenways, and pedestrianization strategies. Antwerp is also planning to test out a new “noise-disrupting fountains” concept this spring. Ghent, finally, is attempting to limit maximum facade noise to 65 decibels using a combination of traffic reduction and improvements to road surfaces.

LA Councilmember introduces plan to establish Barcelona's car-free 'superblocks' in Los Angeles

2022-08-15T18:23:00-04:00

Los Angeles District Councilmember Kevin de León recently introduced a motion proposing a program titled "Park Blocks," modeled after Barcelona’s Superblock initiative, which would establish usable public space for pedestrians and cyclists by closing certain streets to motorized vehicles.

Barcelona’s approach reconfigured vehicle circulation in its Eixample district, allowing for up to 70% of the street surface area to be used as public space. As noted in the motion, this move resulted in major drops in noise and air pollution and increased civic life for residents inside the blocks.

Previously on Archinect: Barcelona's bold new plan to get cars off the road

De León envisions "Park Blocks" as a means to save lives due to poor air quality and traffic violence as well as creating green and recreational spaces in communities lacking parks. They would reportedly also provide other benefits, such as establishing stormwater capture infrastructure.

"A successful program needs to be thoug...

New York to ban construction of schools near highways

2022-07-12T09:00:00-04:00

The New York State Assembly and Senate have passed a bill barring the construction of schools within 500 feet of a highway. The Schools Impact by Gross Highways Act (or SIGH Act) was written to protect school-age children from air pollution.

Under the bill, which will also apply to New York City, the New York Commissioner of Education will only be allowed to approve plans for a new school within 500 feet of a highway if they determine that space is so limited that no other site would be available.

Archinect Feature: Smog City: The Fight Against Urban Air Pollution

According to a recent analysis by the New York Civil Liberties Union (NYCLU), approximately one-third of New York’s students attend a school within 500 feet of a road whose daily volume exceeds 30,000 cars. Approximately 80% of these students are students of color, and 66% are low-income.

“Decades of racial segregation, redlining, and the systemic placement of pollution-emitting infrastructure in Black and Brown communiti...

Ohio State researchers discover new method for designing soundproof spaces

2021-08-12T13:07:00-04:00

A new study by researchers out of The Ohio State University investigates a different kind of design for absorbing vibrations that could better soundproof materials.

Ryan Harne, senior author of the paper and former associate professor of mechanical engineering at Ohio State, along with former Ohio State doctoral student Sih-Ling Yeh, tested how well built-in resonators handled vibrations under a variety of scenarios. Resonators are devices that use spring-like oscillation to control and change vibrations. Some absorb and neutralize them, and others amplify and direct them to specific places. They’re present in some vehicles, which use them to limit the sound emitted from a car’s muffler. Bridges and buildings also utilize them to limit noise and movement.

Contrary to previous studies relating to resonators, which focused on adding one to an existing structure or vehicle part, Harne and Yeh considered embedding resonators directly into a material, rather than adding it later.

Ryan ...

The "anti-noise control window" is designed to stop urban sound pollution in its tracks

2020-07-15T15:42:00-04:00

The system uses a microphone outside the window to detect the repeating sound waves of the offending noise source, which is registered by a computer controller. That in turn deciphers the proper wave frequency needed to neutralize the sound, which is transmitted to the array of speakers on the inside of the window frame.

A team of researchers at Nanyang Technological University in Singapore led by Masaharu Nishimura and Bhan Lam have developed a prototype approach that can decrease the amount of urban noise that infiltrates a dwelling.

The grid of circular speakers is installed within the open window frame and filters out constant sounds of a certain frequency. It has yet to be perfected to block out sporadic and low-pitched sounds, however.

What if construction site noise could be turned into a dance mix?

2019-09-09T12:29:00-04:00

Let's face it, construction noise isn't the most pleasant sounding thing. However, it's a vital part of the design process when working on a project. But what if the loud beeping of cranes and other bothersome acoustic noise could be turned into rhythmic music?

Thanks to Reddit users like fridafluff, keen listeners might consider giving construction site sounds a second chance if they take the form of catchy beats.

This has been waking me up every day for the last couple of weeks from r/SoundsLikeMusic Construction site next door changed to an even better beat. Sample this! from r/SoundsLikeMusic

fridafluff's response from fellow Redditors was so popular that she decided to post her own version of Swedish hip-hop artist Fronda's "Rullar Fram," as well.

Someone actually asked for the whole song!? Well I gave it a shot from r/SoundsLikeMusic

Paris to reformat its Boulevard Périphérique

2019-05-28T21:06:00-04:00

Cars and trucks on one of Europe’s most notoriously congested and polluted urban highways would not only be obliged to drive more slowly, they’d have less room to do it: The number of beltway lanes open to all traffic would also be slashed from eight to six. One lane will be reserved for public, emergency, and zero-emissions vehicles. The other one is to be devoted to trees.

Paris officials are making plans to redesign the traffic lanes for the city's 22-mile-long ring road, Boulevard Périphérique.

A recent report calls for retrofitting the eight-lane highway as part of a wider effort to crack down on car usage across the city. Since taking office in 2014, Paris Mayor Anne Hidalgo has successfully pushed the city to lessen its autocentric configuration by pedestrianizing the streets surrounding the Seine, among other efforts.

A relic of post-World War II urban planning logic, Boulevard Périphérique was built between 1958 and 1973 on the former site of the Thiers Wall, the final remaining set of fortifications surrounding Paris. Today, the concrete highway is a source of toxic air pollution and noise, qualities the coming retrofits are aimed at addressing.

This new 'acoustic metamaterial' can cancel the sounds of anything—without blocking airflow

2019-03-11T14:16:00-04:00

A team of Boston University researchers recently stuck a loudspeaker into one end of a PVC pipe. They cranked it up loud. What did they hear? Nothing. How was this possible? Did they block the other end of the pipe with noise canceling foams or a chunk of concrete? No, nothing of the sort. The pipe was actually left open save for a small, 3D-printed ring placed around the rim. That ring cut 94% of the sound blasting from the speaker, enough to make it inaudible to the human ear.

"The mathematically designed, 3D-printed acoustic metamaterial is shaped in such a way that it sends incoming sounds back to where they came from," explain the Boston University researchers behind the discovery: Xin Zhang, a professor at the College of Engineering, and Reza Ghaffarivardavagh, a Ph.D. student in the Department of Mechanical Engineering. "Inside the outer ring, a helical pattern interferes with sounds, blocking them from transmitting through the open center while preserving air's ability to flow through."

Precisely this capacity of maintaining airflow and enabling light to shine through while muting nearly all of the noise opens up a vast field of practical applications, including architectural.

New $150M PTFE membrane roof at Arthur Ashe Stadium blocks the rain but not the noise

2016-09-06T12:59:00-04:00

Watch professional tennis, and you'll notice that silence makes up a significant part of the game, to the point where spectators can hear the bounce of the ball each time it lands on the playing surface. The acoustics of the new Rossetti Architects-designed roof for the Arthur Ashe stadium, which reportedly is amplifying crowd conversations when it it closed as well being so noisy during a recent rainstorm that according to John McEnroe it's "hard to hear yourself think," are problematic. Ironically, the 210,00 square foot PTFE membraned retractable roof was installed partly to avoid rain delays during play. As BusinessInsider.com notes:

"It turns out that even casual conversations among fans were amplified as the noise reverberated inside. The roof was eventually fully closed during the second set, and the atmosphere reportedly sounded more like a ballpark and not like a tennis venue the players are used to."

Bi-parting Fixed Fabric Shell

For more in sporty architectural news:

HOK wi...

“You miss it when it’s gone”: On New Yorkers' addiction to noise

2016-08-02T14:28:00-04:00

To live in New York means to get habituated to the noise of everyday life here...As a neighborhood becomes more homogenous, and its residents sync their noise patterns, noise complaints tend to go down. This may explain why, controlling for other factors, gentrifying areas of the city display higher levels of noise complaints. City residents stop consciously recognizing noise as novel, and it becomes background, even if their bodies don’t always recognize it as such.

“We all love to hate the noise. And yet sitting in silence, I do not feel as if I’ve found an escape from pain: I have simply traded it for a new variety. Shockingly, I realize I want to trade back.”

Writer Susie Neilson delves into the pros and cons of urban noise pollution, a truly defining factor of living in NYC.

As hammers clang and views vanish

2015-10-03T11:03:00-04:00

residents are taking aim at the disruption caused by construction, the uprooting of cherished institutions, the buildings’ designs and the ever-higher prices attached to the housing that they fear will alter neighborhoods fundamentally.

C. J. Hughes examines how some NYC residents are reacting to an ongoing boom in construction, enabled/exemplified by the rezoning of 37 percent of the city under the Bloomberg administration. From filing noise complaints, pushing for height moratoriums, to fighting against the loss of public space and/or services.

When Buildings Howl: A Primer on Architecture That Whistles

2013-12-05T15:19:00-05:00

On stormy days and windy nights, Tribeca residents say their neighborhood is filled with a strange, high-pitched whistling sound coming from the redeveloped World Trade Center site. It's an inopportune location for howling (although, really, where is?), but it's hardly the first building to surprise its neighbors by humming or whistling. [...] But just to be clear? It's not haunted. Port Authority's rep told Pix 11 he hopes ghost stories won't "become part of the dialogue."