Controversies over new airport runways make locals more noise-sensitive.
Making a noise about noise: airports upset locals.
Public controversy surrounding the impending building of a runway may make locals much more sensitive to increased aircraft noise than planners predict. A new study warns that it could be easy to underestimate the impact of changes such as those proposed for Britains Heathrow Airport.
A new runway began operating at Vancouver International Airport in 1996 after highly publicized local objection to it. Two years later, the proportion of those living below the new flight paths who described themselves as very or extremely annoyed by aircraft noise had risen by more than expected from known trends of noise dosage effects, a new study finds1.
Fidells team conducted two rounds of telephone interviews - in August 1995 and August 1998 - with about 1,000 people living near the Vancouver airport. In both cases they asked identical questions about interviewees general perceptions of noise in their neighbourhoods, including street traffic noise as well as aircraft noise. They made no explicit mention of the new runway.
The researchers canvassed seven communities, each situated under or close to a different part of the flight paths, and so experiencing different noise exposure. Two communities seemed to be particularly disturbed by the effects of the new runway: Bridgeport and Hamilton/Annieville, respectively to the east of and in line with the new runway.
In 1998 more than 60% of the respondents in these communities felt that aircraft noise had increased over the past year. In 1995 the figure was 20-40%.
This rise in ire is far more pronounced than forecasts based on previous studies. In 1992 the US Federal Interagency Committee on Noise produced a graph showing how the proportion of high annoyance in local residents usually increases in relation to rising aircraft noise. The new findings lie above this curve - far above, in the case of Bridgeport.
On average, all the communities studied seemed to have a significantly lower noise-tolerance threshold in 1998 - two years after the highly publicized building of the new runway - than they did in 1995, Fidells group show.
PHILIP BALL | © Nature News Service
A helping (Sens)Hand
11.04.2018 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO
Study sets new distance record for medical drone transport
13.09.2017 | Johns Hopkins Medicine
A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.
The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...
At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...
There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
02.05.2018 | Event News
13.04.2018 | Event News
12.04.2018 | Event News
24.05.2018 | Ecology, The Environment and Conservation
24.05.2018 | Medical Engineering
24.05.2018 | Physics and Astronomy