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Asia Noise News

Hong Kong blind community calls for louder noise from electric cars to improve safety

Hong Kong blind community calls for louder noise from electric cars to improve safety

Hong Kong blind community calls for louder noise from electric cars to improve safety

The silent nature of electric cars may improve quality of life, but Hong Kong’s blind community has demanded the city’s e-vehicles emit a louder noise, claiming their quietness threatens the safety of the visually impaired, the Post has learned.

Joining forces with the World Blind Union’s global campaign against silent e-cars over safety risks, the Hong Kong Blind Union has raised calls for local authorities to introduce legislation to regulate the vehicles.

Concerns have been raised by the international blind community about their hazards as they give no audible warnings to road users. This risk is higher when silent cars proceed at low speeds such as in parking lots.

As some countries such as the US, the UK and Japan already have plans to regulate e-cars’ sound levels, the union hoped local officials would require the city’s e-cars to be equipped with an alert system so that not only the visually impaired but also the elderly and children could easily be alerted to their movements, particularly on quiet roads. As of the end of August this year, there were 6,167 electric vehicles in Hong Kong, up from fewer than 100 at the end of 2010.

The union’s president Chong Chan-yau told the Post his group wrote a letter to the government in March this year asking that it introduce legislation and conduct a public consultation with all stakeholders, especially the blind community. “But the reply to us did not indicate any active actions to be taken by the government,” he said.

“E-cars are now being regarded as a potential threat to visually-impaired pedestrians. The World Blind Union has raised this issue over the past two years at the UN and the European Union. This battle is being fought internationally,” he added.

A Transport and Housing Bureau spokesman told the Post it would follow up the issue as the UN Economic Commission for Europe world forum for the harmonisation of vehicle regulations was soon to publish a regulation requiring acoustic warning devices on hybrid and electric cars.

Once the regulation is published, the department will “liaise with the electric-vehicles’ manufacturers to follow up on installing acoustic warning systems on their vehicles” to further safeguard road users, the spokesman said.

He added the department had tried to persuade the relevant suppliers in Hong Kong to install the alert system to address blind people’s concerns, believing they would follow the new regulation.

He said some e-vehicles’ manufacturers such as Nissan Leaf and Renault Zoe had “already taken the initiative to introduce such systems into certain EV models in Hong Kong”.

But Chong said regulation of e-cars’ warning devices was necessary as the blind relied heavily on surrounding noise for orientation and discerning between vehicular and pedestrian roads.

He added that while many manufacturers agreed to install a warning system in their e-cars, some would like to give drivers an option to turn off the sound. Chong cited views he gathered at a World Blind Union conference in Orlando, Florida, in August.

“This is unacceptable to us. For the drivers, it doesn’t affect them because the sound is emitted outside the car, not inside. We will insist that the system should always be turned on,” he said.

Locky Law, Tesla owner representative at Charged Hong Kong, said e-car owners would not oppose installing a beeper if carmakers sought to use the device to address blind people’s concerns.

However, he expressed worries over noise emission levels as the city’s streets were already clattering with different types of sounds. Law said adding beepers to e-cars and requiring them to emit a sound whenever they moved would “certainly make the roads very noisy”.

“How loud should the beeper be then?” he asked. “With so many sounds on the roads, will that be even more confusing and dangerous for the blind?”

Law said the best approach was to conduct joint tests on Hong Kong streets with participation from representatives from blind groups as well as the government, academic experts and automakers to determine what noise standards would be suitable locally.

A spokesman for carmaker Honest Motors, which produces the Nissan Leaf, said the company’s e-cars had been equipped with beepers since 2011 in compliance with US regulation.

“The sound is loud enough to provide a warning to road users and quiet enough to avoid being disturbing,” he said. “Since the noise is emitted from outside [the vehicle], it still enables a quiet environment inside.”

Source: https://www.biv.com

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Asia Noise News

Maps show noise impact of Heathrow runways

Maps show noise impact of Heathrow runways

PEACE and quiet in north-west Surrey could be drowned out forever if Heathrow Airport is allowed to develop into a four-runway hub, according to new research by an anti-expansion group.

The 2M Group, led by the Conservative-controlled London Borough of Wandsworth, is an all-party alliance of more than 20 local authorities concerned about the environmental impact of Heathrow expansion on their communities.

The group, of which Spelthorne Borough Council used to be a member until switching allegiance and backing the airport, has produced noise contour maps showing areas that could be affected by aircraft from a four-runway Heathrow.

It is already feared that tens of thousands of residents in Spelthorne could be forced to move from their homes to make way for the expansion.

The maps are colour-coded to show which areas would be most adversely affected by noise – with the towns and villages in darker shading bearing the greatest brunt.

According to the maps, there would be an increase in noise for Staines, Egham, Virginia Water and Thorpe, as well as what was left of Stanwell and Ashford, plus parts of Elmbridge.

Heathrow Association for the Control of Aircraft Noise (HACAN) chairman, John Stewart, described youtubemp3now.com the impact of two additional runways as “devastating”.

He said: “The opposition from 2M and residents would be so great that it probably makes the whole project politically impossible.”

The 2M Group has consistently warned that Heathrow will not stop expanding if granted a third landing strip.

A spokesman for the airport said: “We are currently examining a number of options, all of which result in significantly less noise for local residents than the 2M Group’s scaremongering.

“We know aircraft noise can disturb people living under the flight path, which is why we encourage airlines to fly only their quietest aircraft at Heathrow through higher charges for noisier aircraft.”

The airport’s main European rivals have four or more runways and Heathrow will need to match their capacity to directly compete.

Charles de Gaulle Airport in Paris already has four runways. Frankfurt and Barajas (Madrid) also have four, while Schiphol (Amsterdam) has six.

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Noise and Vibration Product News

SPEKTRA improved True Free Field Calibration system, CS18FF

SPEKTRA improved True Free Field Calibration system, CS18FF

SPEKTRA improved True Free Field Calibration system, CS18FF

  • CS18 FF: The Free Field Calibration System contains a newly improved anechoic chamber.
  • The new developed chamber is very easy to disassemble and assemble, practical for shipping , moving.
  • It has excellent free field properties in the full range of frequencies from 125 Hz to 20 kHz
  • A LED lightning system has been added to the chamber
  • To position the DUT precisely and read out the sound level meter display clearly we 2 camera’s are installed in the anechoic chamber.
  • The modular structure of the chamber allows an easy modification of the anechoic chamber for other frequency ranges or test purposes
  • The anechoic chamber is equipped with 4 wheels for easy handling / moving

SPEKTRA CS18FF datasheet

cs18ff-spektra-anechoic-roomcs18ff-spektra-anechoic-room
cs18ff-spektra-anechoic-room
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Asia Noise News

Beijing pilots illegal-honking detectors

Drivers who indiscriminately use their car horns in future could find themselves being booked thanks to a system of detectors being installed along the Chinese capital’s key areas by the Beijing Traffic Management Bureau, according to Beijing Youth Daily.

“The detectors consist of three parts, namely, a microphone array acquisition device, an electronic capture and a LED prompt system. Combining the three systems, we can distinguish between the sounds of horns, brakes and engine noise, etc.,” said Li Jianfeng, deputy director of the Scientific and Technical Information Department of the bureau.

“The detectors can accurately collect honks.” Li said. “Even parallel vehicles can also be identified based on their position in each lane; the recognition locator feature can reflect the direction the honks are coming from, so there will be no misjudgment.”

The system photographs the number plate of the offending vehicle so that the driver can be tracked down and prosecuted.

Honking horns have long been an irritating contributor to Beijing’s noise pollution levels.

According to The Measures of Beijing on the Implementation of the Law of the People’s Republic of China on Road Traffic Safety, violation of the provisions in regard to indiscriminate honking will incur a fine of 100 yuan (US$14.76).

China.org.cn

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Uncategorized

Sidlab Noise propagation in ducts

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Noise and Vibration Product News

Nor145 released !

Nor145 released !

Nor145 is a single channel unit optimized for easy connectivity to NorCloud, NorRemote or Nor850, through the built-in WLAN and 3G/4G LTE modem. Read more.

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Noise and Vibration Product News

What should be the sound of electric cars ?

Look at this great TED talk by Renzo Vitale, click here.

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Noise and Vibration Product News

Sonocat, revolutionary techniques for measuring in situ sound absorption and 3D sound intensity

Sonocat, a revolutionary new instrument developed by Soundinsight from the Netherlands, now already available in Asia!

The Sonocat measures sound pressure, 3D sound intensity and in-situ sound absorption, all controlled by intuitive software.

Read more about the new Sonocat or contact us for a demo.

 

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Asia Noise News

The cities with the worst noise pollution

When you think about pollution you probably imagine a smog-filled city, or an ocean choking on plastic.

But pollution extends beyond what’s in the air and the water. Noise pollution, the noise we live with every day, is a growing problem, and it’s affecting our hearing.

Unsurprisingly, noise pollution is particularly bad in cities. A recent study found that Guangzhou in China had the worst noise pollution, while Zurich in Switzerland had the least.

The Worldwide Hearing Index was created by digital hearing app founders Mimi Hearing Technologies GmbH. They analysed the hearing test results of 200,000 of their users.

They combined their results with data on noise pollution from the World Health Organization (WHO) as well as from SINTEF, a Norwegian-based research organization, and used it to plot noise pollution in 50 different cities.

SE Asia is in the well represented with 9 cities in the worst top 20, lot’s to improve !

 Image 1

Typical sources of noise pollution are transport, such as road, rail and air traffic, construction and industry, and radios and televisions blaring in shops, restaurants and bars.

source 

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Asia Noise News

World Hearing Day 2018

Millions of teenagers and young adults are at risk of developing hearing loss due to the unsafe use of personal audio devices such as smartphones and MP3 players and exposure to damaging levels
of sound at noisy entertainment venues including nightclubs, discotheques, bars, pubs and sporting
events. The emerging pattern of listening regularly at high volume and for a long duration poses a serious
threat to one’s hearing. Hearing is a precious faculty, which impacts educational, professional and social
development.
Noise-induced hearing loss can be prevented

CSIR–National Physical Lab

 

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