Effects Of Aircraft Noise Research Articles

Aircraft noise effects in vulnerable populations

Vulnerable population groups (e.g. children, elderly people, shift workers) have not been the focus of investigations into the effects of transportation noise for a long time. In two field studies in the vicinity of Cologne/Bonn Airport, we therefore investigated the effects of nocturnal aircraft noise on sleep as recorded with polysomnography and self-reported sleep quality as well as short-term annoyance in 51 primary school children (8-10 years) and 44 elderly people (55 - 76 years). In a laboratory study, the effects of aircraft noise on the same outcome variables were compared between 17 participants who slept during the day (19 - 36 years) and 16 participants who slept at night (18 - 35 years). This article provides an overview of the results of these studies in vulnerable groups. Noise effects were more pronounced in participants who slept during the day than in those who slept at night. The findings for children and older people were less consistent and showed effects of nocturnal aircraft noise either on sleep (children) or on self-reported sleep quality and annoyance only (elderly people). Results of the vulnerable groups are discussed in comparison to findings in middle-aged adults.

The effect of aircraft noise on noise annoyance in DEBATS and NORAH pooled analysis: Role of non-acoustic factors

We investigated the dose-response relationship between aircraft noise levels and noise annoyance in the French DEBATS study including 1244 participants in 2013 and a sub-study of the German NORAH study including 1039 participants in 2014. In both studies, annoyance due to aircraft noise was assessed using the ICBEN 5-points question. High annoyance was defined according to ISO/TS-15666 (HAV). Outdoor aircraft noise levels were modelled for the participants' home addresses. The moderation roles of noise sensitivity, gender and age were investigated. About 18% of the participants in the DEBATS study reported to be highly annoyed vs 54% in the NORAH study. The mean noise levels (Lden) were similar (54 dBA in DEBATS and 52 dBA in NORAH). In the pooled analysis, high noise annoyance was associated not only with aircraft noise levels, but also with non-acoustical factors such as noise sensitivity, age and trust in authorities. Noise sensitivity moderates the effect of aircraft noise levels on aircraft noise annoyance (p-value of interaction = 0.02), while age and gender do not.

A review of the surveys on health effect of aircraft noise for Narita International Airport

In this paper, we review two previous projects on health effects of aircraft noise for residents living around Narita International Airport, and introduce a summary of the new project which started since 2019. The airport was equipped with a Runway‐A at the opening, and a Runway‐B was constructed to keep pace with increased demand for air transport in 2002. The Runway‐C will be accomplished at the end of fiscal year 2028. The first project on health effects of aircraft noise was conducted in 1998 when the airport had only Runway‐A. And then, second project on health effects of aircraft noise was conducted in 2014 after beginning of conditional relaxation of curfew. These two projects were based on cross‐sectional study, and implemented using a questionnaire to investigate psychological effects like noise annoyance, night‐time insomnia, mental effects like emotional instability and depressive tendency, and physical effects like high‐blood pressure. Since 2019, third project on health effects have been started because of disestablishment of nighttime flight restrictions for the Runway‐A. In this new project, longitudinal data are also included and we have a plan to investigate using objective method. The progress of this project until 2022 is reported in this paper.

Evidence-based recommendation of threshold values for protection against adverse health effects of aircraft noise

For communities around airports, the German Aircraft Noise Protection Act (FluLaermG) defines two noise protection zones (NPZ) for the daytime (6am - 10pm) and one for the night-time (10pm - 6am). Threshold values of aircraft noise exposure demarcate these zones. For residential properties within the NPZ, the FluLaermG regulates building restrictions and the eligibility for reimbursement of noise insulation, which, regarding the daytime, are stricter for NPZ day 1 than for NPZ day 2. On behalf of the Aircraft Noise Commission, Frankfurt, an expert opinion was prepared to evaluate the threshold values for airport regions in the FluLaermG from the perspective of noise effect research. For this, a threshold value system (TVS) for demarcation of the protection zones was developed based on results of a systematic literature review on health effects of aircraft noise. This contribution provides an overview of key results of the review underlying the TVS and outlines the rationale for the system. The proposed compelling threshold values for avoiding unacceptable health effects of aircraft noise for civil airport regions are 56 dB LAeq,day (NPZ day 1), 51 dB LAeq,day (NPZ day 2), and 44 dB LAeq,night (NPZ night).

The importance of considering both acoustic and non-acoustic factors in mitigating the effects of aircraft noise on residents' well-being

This study examines the effect of temporal changes in aircraft noise exposure in Vietnam, focusing on the influence of non-acoustic factors. Using data from surveys conducted around Tan Son Nhat Airport (TSN) and Noi Bai Airport (NB), the study explores changes in noise exposure levels, evaluates the applicability of existing regulations, and assesses the impact of non-acoustic factors. Surveys conducted around NB between 2014 and 2018 examined operational changes, while those around TSN investigated the impact of the COVID-19 pandemic between 2019 and 2023. Findings suggest that non-acoustic factors significantly shape community responses to noise. This study underscores the importance of implementing comprehensive noise regulation policies that consider both acoustic and non-acoustic factors in mitigating aircraft noise impacts on residents' well-being, particularly in emerging and developing countries.

Effects of aircraft noise exposure on self-reported health through aircraft noise annoyance: Causal mediation analysis in the DEBATS longitudinal study in France.

Previous studies reported an association between transportation noise and self-reported health status (SRHS). They also suggested a mediating role of noise annoyance using conventional statistical methods. These methods are subject to bias in longitudinal studies with time-dependent exposure, mediator and confounding factors. This study aims to investigate the mediating role of aircraft noise annoyance in the effect of aircraft noise on SRHS using a causal inference approach to address time-dependent variables issues. We used data from 881 participants in all three visits in the DEBATS longitudinal study conducted around three French airports. Participants over 18 years of age reported their self-perceived health status, aircraft noise annoyance, and noise sensitivity by completing a questionnaire at three visits in 2013, 2015 and 2017. Noise maps were used to estimate aircraft noise levels outside their homes. Marginal structural models with inverse probability weighting were used to estimate the total effect of aircraft noise levels on SRHS and its decomposition into direct and indirect effect through aircraft noise annoyance. This study showed a deleterious effect of aircraft noise on SRHS. The odds ratio (OR) corresponding to the total effect and comparing the highest aircraft noise category (≥60 dBA) to the reference category (<50 dBA) was significant (ORpoor/fair_SHRS = 1.25 (95%CI: 1.06 to 2.08)). It also showed no direct effect of aircraft noise levels on SRHS, but an indirect effect through annoyance. This indirect effect increased as aircraft noise levels increased, with a statistically significant OR when comparing the highest noise category (≥60 dBA) to the lowest (<50 dBA) (ORpoor/fair_SHRS = 1.16 (95%CI: 1.03 to 1.52)). Nearly 66% of aircraft noise's effect on SRHS was mediated by aircraft noise annoyance. This study supports the deleterious causal effect of aircraft noise on SRHS. The results highlight the important mediating role of aircraft noise annoyance in the causal pathway from exposure to aircraft noise to poor/fair SRHS.

Population health implications of exposure to pervasive military aircraft noise pollution.

While the adverse health effects of civil aircraft noise are relatively well studied, impacts associated with more intense and intermittent noise from military aviation have been rarely assessed. In recent years, increased training at Naval Air Station Whidbey Island, USA has raised concerns regarding the public health and well-being implications of noise from military aviation. This study assessed the public health risks of military aircraft noise by developing a systematic workflow that uses acoustic and aircraft operations data to map noise exposure and predict health outcomes at the population scale. Acoustic data encompassing seven years of monitoring efforts were integrated with flight operations data for 2020-2021 and a Department of Defense noise simulation model to characterize the noise regime. The model produced contours for day-night, nighttime, and 24-h average levels, which were validated by field monitoring and mapped to yield the estimated noise burden. Established thresholds and exposure-response relationships were used to predict the population subject to potential noise-related health effects, including annoyance, sleep disturbance, hearing impairment, and delays in childhood learning. Over 74,000 people within the area of aircraft noise exposure were at risk of adverse health effects. Of those exposed, substantial numbers were estimated to be highly annoyed and highly sleep disturbed, and several schools were exposed to levels that place them at risk of delay in childhood learning. Noise in some areas exceeded thresholds established by federal regulations for public health, residential land use and noise mitigation action, as well as the ranges of established exposure-response relationships. This study quantified the extensive spatial scale and population health burden of noise from military aviation.We employed a novel GIS-based workflow for relating mapped distributions of aircraft noise exposure to a suite of public health outcomes by integrating acoustic monitoring and simulation data with a dasymetric population density map. This approach enables the evaluation of population health impacts due to past, current, and future proposed military operations. Moreover, itcanbemodified for application to other environmental noise sources and offers an improved open-sourcetool to assess the population health implications of environmental noise exposure, inform at-risk communities, and guide efforts in noise mitigation and policy governing noise legislation, urban planning, and land use.

Assessment of noise complaints as an indicator of long-term effects of aircraft noise on communities surrounding aerodromes

Aircraft noise is considered by many as the most burdensome part of aircraft operations. Communities neighbouring airports often express concerns about the possible health effects of chronic exposure to noise. To quantify the long-term effects of environmental noise exposure, researchers often use the metric of annoyance. Annoyance is widely considered to be the most well-corroborated health effect of aircraft noise and a moderating factor for other suspected health effects. Annoyance can also be correlated to average cumulative noise levels, such that higher levels of chronic noise likely evoke higher levels of annoyance within the population. Annoyance data is typically collected using extensive surveys and/or interviews, which are costly and time-consuming. In the absence of annoyance data, complaints are often used as a proxy for annoyance. This research used complaint, noise and annoyance data to demonstrate that complaints do not equate to annoyance, nor do they correlate to cumulative noise metrics. Thus, while complaint data may prove useful in analyzing short-term response to operations, it should not be relied upon for the assessment of long-term impacts from aircraft noise exposure, nor should it be used to direct noise and annoyance mitigation initiatives.

Acute effects of military aircraft noise on sedative and analgesic drug administrations in psychiatric patients: A case-time series analysis

BackgroundExisting evidence suggests that psychiatric patients are highly noise sensitive, and that noise exposure increases the risk for adverse mental health outcomes, such as psychiatric hospitalizations and even suicide. To investigate acute effects of noise in this vulnerable population, we assessed short-term associations between fighter jet noise and on-demand sedative and analgesic drug administrations in a psychiatric clinic located close to a military airfield in Switzerland. MethodsWe applied a case time series analysis with an hourly time resolution using distributed-lag models. Analysis was adjusted for long-term and seasonal trends, day of week, time of day, time-varying weather conditions and the week of stay. Noise exposure (hourly A-weighted equivalent continuous sound pressure levels (LAeq)) was modelled using detailed flight plans and noise footprints for different fighter jet and route combinations. Outcome data were available from the clinic’s records. OutcomesDuring the study period (06/2016–12/2021), 23,486 flights occurred. 5,968 clinical stays with a median length of 41 days (IQR: 28d, 50d) were recorded. The odds ratio (OR) for medication administration over the lag period of 3 hours after exposure was 1.016 (95 %CI: 1.006, 1.026) per 10 dB LAeq for sedatives and 1.032 (95 %CI: 1.016, 1.048) per 10 dB for analgesics. Effects were larger in multimorbid patients. InterpretationCase time series analysis is a novel method to investigate transient associations in observational data while minimizing risk of bias. Using an objectively recorded outcome measure, our results demonstrate that psychiatric patients are a vulnerable population, in which noise exposure can lead to symptom exacerbations and adverse events.

A study examining the long-term effects of aircraft noise on the surrounding residents before the opening of Long Thanh Airport

Long Thanh Airport (LT) is a new airport scheduled to open in 2025 and serve as the largest aviation hub in Vietnam. The residents are expected to experience adverse health effects from long-term noise exposure once LT begins operation. This study aims to serve as a basis for comparing the impact of environmental changes before and after the opening of LT. This study assesses the health of the residents in ten residential areas under the planned flight paths of LT. Currently, before the new airport operates, environmental noise around LT is primarily caused by traffic noise from nearby roads near the selected houses. The 24-hour A-weighted equivalent continuous sound level (LAeq) at a representative house in each area ranged from 51 to 72 dB. In August 2022, 641 residents were surveyed to assess their health conditions. It was found that traffic noise was the most frequently cited environmental nuisance among the surveyed participants. However, the regression model considers contextual factors, noise exposure, and other factors impacting health and indicates that the health of the residents is associated with factors beyond noise exposure, such as noise sensitivity, mobility, and attitude towards transport modes.

Effects of Aircraft Noise on Sleep: Federal Aviation Administration National Sleep Study Protocol.

Aircraft noise can disrupt sleep and impair recuperation. The last U.S. investigation into the effects of aircraft noise on sleep dates back more than 20 years. Since then, traffic patterns and the noise levels produced by single aircraft have changed substantially. It is therefore important to acquire current data on sleep disturbance relative to varying degrees of aircraft noise exposure in the U.S. that can be used to check and potentially update the existing noise policy. This manuscript describes the design, procedures, and analytical approaches of the FAA's National Sleep Study. Seventy-seven U.S. airports with relevant nighttime air traffic from 39 states are included in the sampling frame. Based on simulation-based power calculations, the field study aims to recruit 400 participants from four noise strata and record an electrocardiogram (ECG), body movement, and sound pressure levels in the bedroom for five consecutive nights. The primary outcome of the study is an exposure-response function between the instantaneous, maximum A-weighted sound pressure levels (dBA) of individual aircraft measured in the bedroom and awakening probability inferred from changes in heart rate and body movement. Self-reported sleep disturbance due to aircraft noise is the secondary outcome that will be associated with long-term average noise exposure metrics such as the Day-Night Average Sound Level (DNL) and the Nighttime Equivalent Sound Level (Lnight). The effect of aircraft noise on several other physiological and self-report outcomes will also be investigated. This study will provide key insights into the effects of aircraft noise on objectively and subjectively assessed sleep disturbance.

Soundscape and subjective factors affecting residents' evaluation of aircraft noise in the communities under flight routes.

Aircraft noise is one of the most significant sources of environmental pollution in large cities. During the COVID-19 pandemic, strict lockdown in community might increase residents' discomfort with the noise, which could disrupt public activities and reduce subjective well-being. Most of the existing studies considered aircraft noise as a single sound source, which have ignored the influence of other sounds in the community. This paper applied field survey to identify the soundscape and non-acoustic factors related to aircraft noise evaluation. Paper questionnaires were delivered to select residents of three sample residential areas near Shenzhen Bao'an International Airport to investigate residents' general health, evaluation of aircraft noise, community activities, and attitudinal factors. The relationship between respondent's noise evaluations and subjective factors were investigated through statistical analyses controlling for measured aircraft noise levels and the existence of soundscape facilities. The results indicated that the negative effects of aircraft noise were enhanced during the lock down, especially for frequent space users and those residents in poor health status. Under conditions of similar levels of aircraft noise exposure, communities with more birdsong and fountain sounds had lower proportion of highly annoyed respondents and higher level of soundscape ratings. This paper further indicated that personal factors including fear of air travel, noise sensitivity, and the frequency of outdoor activity had increased the level of annoyance to aircraft noise, while higher degree of annoyance to aircraft noise was associated with poor health status. The findings implied the moderating effects of subjective factors and the restorative effects of natural sounds, which could inform aircraft noise control and community consultation strategies by protecting vulnerable populations and creating community soundscape facilities. Future research might conduct a pre- and post-experiment to estimate the potential causal impact of the soundscape intervention.

How much noise is too much? Methods for identifying thresholds for soundscape quality and ecosystem services

The United States National Park Service mandate is to conserve park resources and provide superlative visitor experience. In the context of acoustic resources, Denali National Park and Preserve provides an advantageous opportunity to understand the effect of aircraft noise on visitor experience because it possesses high levels of air tour traffic in a park renowned for its remote, wilderness character. Park visitors in four different settings were asked to rate the acceptability of recordings of aircraft noise, presented in randomized order relative to noise level. A cumulative link mixed model fitted visitor assessments to acoustic and nonacoustic factors. In addition to noise level, interest in an air tour was an important predictor of sound clip acceptability. For visitors uninterested in an air tour, the probability of rating aircraft noise as unacceptable at 54 dB LAeq,30 s or higher was 26%. For reference, this aligns with federal guidance that identified 55 dB as a threshold for interference with outdoor activities at rural residences and schools. Predictions of visitor response were joined to a spatial model of aircraft noise propagation to map visitor acceptability of aircraft noise in Denali’s entrance area (frontcountry). This map can be used to assess the condition of park management zones, to inform hiking recommendations for visitors, and to predict the range of soundscape conditions experienced by park visitors.

A composite approach to modelling aircraft noise contours for improved annoyance prediction

Aircraft noise contours are an essential tool for land-use planning around aerodromes. They are intended as predictors of the effects of aircraft noise on communities, mainly in terms of aircraft noise annoyance. In practicality, these contours often fail to encompass a large percentage of the severely annoyed population at the prescribed noise thresholds for the onset of significant annoyance. This paper proposes a novel approach to modelling noise exposure contours that can improve their predictive power. Using Toronto Pearson Airport as a case study, data from a 2020 noise annoyance questionnaire and calculated noise levels from 25 noise monitoring terminals were used to examine the relationships between severe annoyance and noise exposure for six different airport operational scenarios, representative of both average and alternate traffic configurations. The findings indicate that a composite scenario that models noise exposure for both average and alternate traffic configurations is more predictive of severe annoyance than an average type scenario alone.

Traffic noise annoyance in the LIFE-adult study in Germany: Exposure-response relationships and a comparison to the WHO curves

BackgroundNoise annoyance is the second-highest cause of lost disability-adjusted life-years due to environmental noise in Europe. Evidence on exposure-response relationships (ERRs) for traffic noise annoyance with more accurate exposure values is still needed. ObjectivesIn an analysis of the population-based LIFE-Adult study in Leipzig, Germany, we aimed to investigate the effect of road, railway (train and tram), and aircraft noise on high annoyance (HA). MethodsTraffic exposure data was taken for 2012 and data on noise annoyance was evaluated between 2018 and 2021. HA was defined according to international standardized norms. We calculated risk estimates using logistic regression, controlling for age, sex, and socioeconomic status, and compared our ERRs with those from the last WHO review on this topic. ResultsAircraft noise had the highest relative risk for noise-related HA (OR = 12.7, 95% CI: 9.37–17.10 per 10 dB Lden increase). The road and railway traffic risk estimates were similar to each other (road: OR = 3.55, 95% CI: 2.78–4.54; railway: OR = 3.31, 95% CI: 2.77–3.97 per 10 dB Lden increase). Compared to the WHO curves, the proportion of highly annoyed individuals was somewhat lower for road and rail traffic noise, but higher for aircraft noise. DiscussionAircraft noise is particularly annoying. There were differences between our study's ERRs and those in the WHO review, especially for aircraft noise. These differences may be partly explained by the improved accuracy of the exposure values, as we considered secondary road networks and tram noise, and by a lack of a nighttime flight ban at the Leipzig airport. Geographical, regional and climatic variations, inconsistency in HA cut-offs, as well as temporal developments in the annoyance experience may also explain the differences. Since ERRs serve as a basis for decision making in public policies, regular updates of the curves based on new evidence is recommended.

Effects of aircraft noise on psychophysiological feedback in under-route open spaces

Aircraft noise pollution is getting increasingly severe due to striding development of worldwide air transport. In high-density cities, a large number of residential areas are exposed to airport routes where flight-over noise poses a serious threat to public health. However, most existing research is limited to the thresholds for annoyance lacking in-depth exploration into the psychophysiological mechanisms that induce health responses. This study aims to examine the health effects of aircraft noise on both subjective evaluation and objective physiological indicators in a laboratory setting. Aircraft noise samples were collected in the under-route open spaces and their effects on annoyance and physiological feedback, including Skin Conductance Response (EDA) and Heart Rate Variability (HRV), were examined using listening experiment and ErgoLAB electrophysiological response monitoring. The study analysed the relationship between psychophysiological responses and subjective annoyance. The psychoacoustic parameters that induced emotion-related feedback were also identified. The results are expected to provide indicators to assess and improve the health of under-route communities.

The Role of Noise Annoyance and Noise Sensitivity in the Effect of Aircraft Noise on Self-Reported Health: The Results of the DEBATS Longitudinal Study in France.

Transportation noise seems to impair self-reported health status (SRHS). However, only a few studies have considered the role of noise annoyance and noise sensitivity in this deleterious effect. This study aims investigating mediator and moderator roles of noise annoyance and noise sensitivity. In 2013, the DEBATS longitudinal study included 1244 participants aged over 18 years and living around three French airports. These participants were followed up in 2015 and 2017. They self-reported their perceived health status, aircraft noise annoyance, and their noise sensitivity via a questionnaire during the three visits. Noise maps were used to estimate aircraft noise levels at the facade of participants' residence. Generalized linear mixed models with a random intercept at the participant level were used. Aircraft noise levels were associated with severe annoyance. Severe annoyance tent to be associated with impaired SRHS. Aircraft noise levels were associated with impaired SRHS only in men (odds ratio [OR] = 1.47, 95% confidence interval [CI] = [1.02, 2.11], for a 10-dBA Lden increase in aircraft noise levels) with a weaker association adjusted for annoyance (OR = 1.36, 95% CI = [0.94, 1.98]). The association was stronger in men who reported high noise sensitivity (OR = 1.84, 95% CI = [0.92, 3.70], versus OR = 1.39, 95% CI = [0.90, 2.14], for men who were not highly sensitive to noise). From our results, the deleterious effect of aircraft noise on SRHS could be mediated by noise annoyance and moderated by noise sensitivity. Further studies using causal inference methods are needed for identifying causal effect of exposure, mediator, and moderator.

JS-ISH-ESH-2: NOISE POLLUTION AND ARTERIAL HYPERTENSION

Environmental noise significantly impacts human health and well-being. It is a widespread problem in Europe, where at least one in five people are exposed to harmful levels of noise. Hearing loss is the most known health effect related to noise exposure. There is, however, growing data that links noise exposure to hypertension, coronary artery disease, and stroke. According to some theories, this relationship may be explained by the indirect pathway of noise exposure, which can cause sympathetic and endocrine activation, as well as several cognitive and emotional responses, including annoyance. Noise exposure leads to stress reactions independent of cognitive involvement. There is a possibility that noise exerts its effects directly through synaptic interactions, as well as through cognitive and emotional effects. Epidemiological studies indicate that nocturnal noise exposure has more profound health consequences. Nighttime noise exposure is associated with an increase in heart rate due to sympathetic activation or parasympathetic withdrawal, and with an increase in blood pressure as well as endothelial dysfunction. Hypertension is a common condition and is an important risk indicator for other cardiovascular diseases. Previous studies showed an association between noise exposure, blood pressure and arterial hypertension. Meta-analysis of cross-sectional studies found an increase of hypertension prevalence per 10 dB increase in daytime average road traffic noise level. There is, however, some heterogeneity among these studies. Prospective studies have also found an association between aircraft noise exposure and hypertension, supporting the cross-sectional findings. The analyses, of data from the large Hypertension and Exposure to Noise near Airports (HYENA) study, showed that an increase in nocturnal aircraft noise exposure per 10 dB was associated with an increased incidence of hypertension. The meaningful effect of night-time aircraft noise on arterial hypertension was also observed in the prospective observation of the subset of individuals from that study. In a longitudinal observation of 420 participants, higher aircraft noise exposure during the night significantly associated with the incidence of hypertension. Previous cross-sectional case-control study conducted in 2015, in 2 suburban areas of Krakow, Poland, revealed an increase in blood pressure and arterial stiffness as determined by carotid - femoral pulse wave velocity in individuals exposed to increased aircraft noise levels. However, even short-term noise reduction, as experienced during the COVID-19 lockdown, may reverse those unfavorable effects. As a result of these observations, noise mitigation strategies are important for cardiovascular health.

Distribution methodology for aircraft noise annoyance surveys

Annoyance is one of the most common effects of aircraft noise on individuals. The prevalence of severe annoyance within a community is a metric that informs regulatory noise exposure thresholds and guidelines. It is therefore critical that accurate annoyance data is collected through community surveys, which are typically distributed to areas affected by various levels of aircraft noise, as defined by average-day type noise exposure contours. This distribution methodology excludes segments of the population that are affected by noise but underrepresented by these types of contours. Here are presented the results of two community surveys executed around Toronto Pearson International Airport, using different distribution methodologies. The first survey identified five zones for distribution based on noise exposure contours. The second survey was distributed within a 750-meter radius around 25 noise monitoring terminals in the vicinity of the airport. The two surveys yielded different annoyance results, particularly as they relate to the locations of highly annoyed respondents. A prevalence of severe annoyance was observed in areas that were intermittently affected by aircraft noise and thus out of the range of average-day type noise contours. It was concluded that a more comprehensive approach for survey distribution is necessary to ensure unbiased annoyance results.

EFFECTS OF AIRCRAFT NOISE ON RESIDENTIAL PROPERTIES RENTAL VALUE AROUND MAIDUGURI INTERNATIONAL AIRPORT, BORNO STATE, NIGERIA

This study examined the effects of aircraft noise on residential properties rental value around Maiduguri International Airport Area in Borno State. The data was collected through the administration of 363 structured questionnaire to selected household heads residing in the neighbourhoods around the airport. It utilized mean ranking, the simple regression analysis toanalyze the data collected. The result of the simple regression analysis revealed that aircraft noise negatively influences residential property value around the airport and that aircraft noise does not really depreciate residential property rental value, the noise level for the day-eveningnight time depends on frequency of flights as well as distance from the airport and the time of the day and also showed that rental values of residential properties in the study area fall within the range of 50,000 Naira and below for one room apartment. The study also found that tenants are willing to stay in the neighbourhood due to the presence of Air Force Base (security personnel) in the area. The study therefore recommends among other things, that investors and propertydevelopers embarking on property development should take into account the effects of noise on rental value of residential property to avoid wasting of funds in such ventures, also upgrading of the sound insulation of buildings will be a useful technique for reducing the negative impacts of aircraft noise to enhance the quality of urban life of residents. Government through urbandevelopment board should ensure the enforcement of land use and physical planning laws to mitigate and minimize the negative impacts of airport noise in the airport areas.