Substantial road traffic noise in urban areas contributes to sleep disturbance and annoyanceSeptember 11, 2012
"Our research estimated that the percentage of the overall populations at risk of high annoyance is 9.5%, and highly disturbed sleep at 2.3%," says co-investigator James B. Holt, PhD, of the Epidemiology and Surveillance Branch, Division of Population Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA. "Long-term exposure to noise could increase the risks of heart attack and high blood pressure. Nighttime noise can reduce sleep quality and increase morning tiredness and insomnia."
Fulton County, Georgia is a highly urbanized area incorporating the city of Atlanta and surrounding communities. Interstate Highway 285 runs around the heart of the county, and the area inside 285 has a complex high-density road network. Investigators collected a number of data sets to estimate road traffic noise exposure levels, including topographical information, vehicle volume and speed, and the mix of vehicle types. The US Federal Highway Administration's Traffic Noise Model was used to produce road traffic noise maps for daytime and nighttime. They calculated metrics to indicate the probability that certain percentages of the population, exposed to certain levels of road traffic noise, would be highly annoyed or have high levels of sleep disturbance, at a given point.
Three cities - Atlanta, Sandy Springs, and Alpharetta --- contributed to 79% of the estimated total number of people who were highly annoyed by noise in Fulton County. Atlanta, Sandy Springs, and Roswell contributed to 78% of sleep disturbance. These cities also have the highest populations in the county. In terms of prevalence, the smaller city of College Park was the city most negatively impacted, with 11.3% of its daytime population and 3.7% of its nighttime population estimated to be at risk for experiencing annoyance or sleep disturbance. Most of the people affected appeared inside the I-285 corridor and contributed 68% and 64%, respectively, to the populations estimated to be at risk of experiencing high levels of annoyance and sleep disturbance.
In a US Census Bureau survey, the city of Atlanta had the lowest percentage of households among 38 metropolitan areas reporting the presence of road traffic noise. "It may be assumed that even more people would be affected in other densely populated areas of the US," notes Dr. Holt.
Dr. Holt suggests that more studies are needed to gain insights into the severity of road traffic noise in US urban communities. "We believe it is time to begin extensive traffic-related noise research and establish up-to-date policies to control and abate noise problems for our communities," he says. "Adequate restful sleep and mental well-being are as essential to good health as adequate nutrition and physical activity. Assessing and alleviating environmental noise is an essential element for improving or creating healthy communities where adults and children can play, work, and live."
Elsevier Health Sciences
Related Sleep Disturbance Current Events and Sleep Disturbance News Articles
Cognitive behavioral therapy for insomnia reduces suicidal thoughts in veterans
A new study is the first to show that the treatment of insomnia in veterans is associated with a significant reduction in suicidal ideation.
Study links suicide risk with insomnia, alcohol use
A new study is the first to show that insomnia symptoms mediate the relationship between alcohol use and suicide risk, and that this mediation is moderated by gender.
Study finds eczema, short stature not associated overall
Eczema, an itchy chronic inflammatory disease of the skin, was not associated overall with short stature in an analysis of data from several studies, although a small group of children and adolescents with severe eczema who do not get enough sleep may have potentially reversible growth impairment, according to a study published online by JAMA Dermatology.
Sleep disturbance linked to amyloid in brain areas affected by Alzheimer's disease
Healthy, elderly research participants who report being more sleepy and less rested have higher levels of amyloid deposition in regions of the brain that are affected in Alzheimer's disease, according to a report presented today at the American College of Neuropsychopharmacology annual meeting in Phoenix (Arizona).
Movements help measure child sleep problems
New research from the University of Adelaide has helped to shed light on the complexities of child sleep, and could lead to improved diagnosis of children with sleep-related breathing problems.
High rate of insomnia during early recovery from addiction
Insomnia is a "prevalent and persistent" problem for patients in the early phases of recovery from the disease of addiction-and may lead to an increased risk of relapse, according to a report in the November/December Journal of Addiction Medicine, the official journal of the American Society of Addiction Medicine.
Adult eczema may be unrecognized risk factor for fracture, other injuries
Adults with eczema had a higher prevalence of fracture and bone or joint injury (FBJI), as well as other types of injury-causing limitations, in a nationally representative sample of patients with a history of the chronic inflammatory disorder that can cause skin itching and result in sleep disturbance, according to a study published online by JAMA Dermatology.
Self-reported sleep disturbances are linked to higher risk for Alzheimer's disease in men
In a new study, researchers from Uppsala University demonstrate that elderly men with self-reported sleep disturbances run a higher risk of developing Alzheimer's disease than men without self-reported sleep disturbances. The results are published in the scientific journal Alzheimer's & Dementia.
Blind cave fish may provide insight on eye disease and other human health issues
Blind cave fish may not be the first thing that comes to mind when it comes to understanding human sight, but recent research indicates they may have quite a bit to teach us about the causes of many human ailments, including those that result in loss of sight.
A vicious cycle in osteoarthritis: Sleep disturbance-pain-depression-disability
New research confirms that sleep disturbances are linked to pain and depression, but not disability, among patients with osteoarthritis (OA).
More Sleep Disturbance Current Events and Sleep Disturbance News Articles