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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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Noise and Vibration Product News

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.

Thailand