scholarly journals Reduction of community noise levels through effective vehicle noise legislation

1977 ◽  
Vol 62 (S1) ◽  
pp. S7-S7
Author(s):  
Anita Lawrence
Keyword(s):  
Noise Levels ◽  
Vehicle Noise ◽  
Community Noise

Abstract P100: Long-Term Exposures to Community Noise and Blood Pressure Levels in Chicago, Illinois

Circulation ◽  
2018 ◽  
Vol 137 (suppl_1) ◽  
Author(s):  
Jennifer C D'Souza ◽  
Jennifer Weuve ◽  
Robert D Brook ◽  
Denis A Evans ◽  
Joel D Kaufman ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Antihypertensive Medication ◽  
Proportional Hazards Model ◽  
Cox Proportional Hazards ◽  
Air Pollutant ◽  
Cox Proportional Hazards Model ◽  
Noise Levels ◽  
Incident Hypertension ◽  
Community Noise ◽  
The Us

Objectives: Over half the US population experiences noise levels above WHO recommendations yet little research within the US has examined the health effects of these exposures. Our objective is to investigate the associations between community noise and blood pressure in residents of Chicago. Methods: Participants were from two prospective cohort studies: the Multi Ethnic Study of Atherosclerosis (MESA) and the Chicago Health and Aging Project (CHAP). MESA is a multi-site study of persons aged 45-84 years and free of clinical cardiovascular disease. CHAP is an open cohort initiated to study chronic conditions of aging among persons aged ≥65 years. This analysis focuses on the 5,167 participants of these cohorts living in Chicago with an average of 2.5 (CHAP) and 4.5 (MESA) assessments per participant, for systolic (SBP) and diastolic (DBP) blood pressure between 1999-2011. In both cohorts, hypertension was defined as taking antihypertensive medication, SBP ≥140 or DBP ≥ 90 mmHg. We estimated noise at participant addresses using land use regression models weighted according to participants’ 5-year residential history before each exam. Among those taking antihypertensive medication, blood pressure was adjusted using multiple imputation. Associations between noise and blood were estimated using linear mixed models. A Cox proportional hazards model was used to estimate relative risk (RR) of incident hypertension. All models included calendar time, age, sex, race, income, education, neighborhood socioeconomic score, smoking, cohort, interaction between cohort and age, race, and gender, and NO x (a traffic-related air pollutant). Findings : At baseline, MESA participants were younger (63 vs 73 years) and more educated (36 vs. 3% with ≥graduate degree) than CHAP participants. MESA participants had higher noise levels (60 vs 56 dB) and lower blood pressures (e.g. SBP: 124 vs 135 mmHg) than CHAP participants. After adjusting for cohort and other confounders, we found that 10 dB higher residential noise levels were associated with 0.9 (95% CI: -0.2, 0.2; p=0.1) and 0.5 mmHg greater (95% CI: -0.1, 0.11; p=0.08) SBP and DBP, respectively. Similar associations were found within each cohort. Noise was not associated with incident hypertension overall (RR: 1.00; 95% CI: 0.8, 1.3, p=0.98) or within cohort. Conclusions: We found a suggestive association between noise and blood pressure levels, but no association with hypertension. This could be due to the lack of nighttime noise information, which has been shown to be more strongly associated with blood pressure outcomes than daytime levels or with the selection of healthy older participants.

Archaeological acoustics—A guide to trends in community noise levels

2004 ◽  
Vol 115 (5) ◽  
pp. 2622-2622 ◽  
Author(s):  
Daniel R. Raichel ◽  
Bennett M. Brooks ◽  
David Lubman
Keyword(s):  
Noise Levels ◽  
Community Noise

In-vehicle noise exposure among military personnel depending on type of vehicle, riding compartment and road surface

2019 ◽  
pp. jramc-2018-001091 ◽  
Author(s):  
Assar Luha ◽  
E Merisalu ◽  
M Reinvee ◽  
S Kinnas ◽  
R Jõgeva ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Military Personnel ◽  
Military Service ◽  
Noise Exposure ◽  
Road Surface ◽  
Noise Induced Hearing Loss ◽  
Noise Levels ◽  
Long Distance ◽  
Vehicle Noise ◽  
Paved Road

IntroductionNoise-induced hearing loss is one of the most common health problems among military service personnel. Exposure to noise in military vehicles constitutes a large proportion of total noise exposure. This pilot study aimed to evaluate in-vehicle noise levels depending on the type of vehicle, riding compartment and road surface.MethodNoise levels were measured in armoured personnel carriers and heavy all-terrain trucks, in the cab and rear passenger compartment, while driving on paved or off-road surfaces. The results were compared with national LLV and allowed noise exposure times were calculated per vehicle and surface.ResultsThe equivalent noise levels in the cab of SISU XA-188 (p=0.001) and peak noise levels in MAN 4620 (p=0.0001) and DAF 4440 (p=0.0047) were higher on paved road, compared with off-road. The equivalent noise levels in the canvas covered rear compartment of MAN 4620 were significantly higher than in the cab on both paved (p=0.004) and off-road (p=0.0003). Peak noise levels in the cab of DAF 4440 exceeded the parameters measured in the canvas covered rear compartment on both paved (p=0.002) and off-road (p=0.0002). In most cases, peak noise levels were below the LLV (p=0.02–0.0001). The maximum noise exposure to passengers in the canvas covered rear compartment of MAN 4620 despite road surface was calculated 0.6 hours per working day.ConclusionA high risk of noise-induced hearing loss among military personnel occurs during long distance transportation with vehicles showing noise levels higher than allowed LLV.

Community noise from a drone delivery distribution center: challenges and options

2021 ◽  
Vol 263 (6) ◽  
pp. 799-809
Author(s):  
Jacob Poling
Keyword(s):  
Noise Source ◽  
Distribution Center ◽  
Distribution Centers ◽  
Noise Levels ◽  
Community Noise ◽  
Package Delivery ◽  
Delivery Services ◽  
Potential Alternative ◽  
New Community ◽  
Noise Metrics

As drone package delivery services are expanded, community noise will be an issue that every operator will need to consider. Drones represent a unique new community noise source that will operate and be perceived differently than traditional aircraft and ground transportation vehicles. It is also likely that some early implementations of drone delivery services by major retailers will operate out of existing distribution centers, which may not be ideally located from a noise perspective. This study considers potential drone delivery noise in the community surrounding an existing distribution center, assuming the facility were to be utilized as the hub of a future drone package delivery service. The predicted noise levels from drone deliveries are compared to typical community noise limits, and potential alternative noise metrics for assessing annoyance from drone noise in communities are discussed. Options to reduce community noise from drone deliveries by altering flight altitude and speed, utilizing different flight path routing strategies, and taking advantage of the potential masking of drones by existing roadway noise are considered.

scholarly journals An assessment of the audibility of sound from human transport by breeding Weddell seals (Leptonychotes weddellii)

2006 ◽  
Vol 33 (4) ◽  
pp. 275 ◽  
Author(s):  
Tamara D. van Polanen Petel ◽  
John M. Terhune ◽  
Mark A. Hindell ◽  
Melissa A. Giese
Keyword(s):  
Detection Threshold ◽  
Weddell Seal ◽  
Anthropogenic Noise ◽  
Noise Levels ◽  
Leptonychotes Weddellii ◽  
Vehicle Noise ◽  
Weddell Seals ◽  
Vocal Behaviour ◽  
Pedestrian Travel ◽  
Low Amplitude

Anthropogenic noise generated through travel in the Antarctic has the potential to affect the region’s wildlife. Weddell seals (Leptonychotes weddellii) in particular can be exposed to anthropogenic noise because they live under, and breed on, the fast ice on which humans travel. To investigate the potential effects of anthropogenic noise on Weddell seals we developed sound profiles for pedestrian travel, over-snow vehicles, aircraft and watercraft operating at various distances and altitudes from breeding seals. The received 1/3-octave noise levels were then related to an assumed detection threshold for the Weddell seal. We found that most noise levels generated by the pedestrian, quad (4-wheeled, all-terrain vehicle) and Hagglunds (tracked, all-terrain vehicle) were commonly categorised in the inaudible and barely audible range of detection (both in-air and underwater), while noise levels generated by the helicopter, Twin Otter aircraft and Zodiac boat were categorised more commonly in the barely audible and clearly audible range. Experimental underwater recordings of vocal behaviour of Weddell seals exposed to continuous low-amplitude over-snow vehicle noise (i.e. Hagglund operation) were also made. Weddell seals underwater did not alter individual call types in response to low-level Hagglunds noise, but they did decrease their calling rate.

An exploratory study of community noise levels in Mexico City

1987 ◽  
Vol 22 (4) ◽  
pp. 271-280 ◽  
Author(s):  
R.R. Boullosa ◽  
S.J. Perez Ruiz
Keyword(s):  
Mexico City ◽  
Exploratory Study ◽  
Noise Levels ◽  
Community Noise
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