On the Relationship between Traffic Noise Resistance and Urban Morphology in Low-Density Residential Areas

2015 ◽  
Vol 101 (3) ◽  
pp. 510-519 ◽  
Author(s):  
Yiying Hao ◽  
Jian Kang ◽  
Dirkjan Krijnders ◽  
Heinrich Wörtche
Keyword(s):  
Traffic Noise ◽  
Urban Morphology ◽  
Low Density ◽  
Residential Areas ◽  
Noise Resistance ◽  
The Relationship

scholarly journals THE STUDY OF ROAD PAVEMENT PERFORMANCE THROUGH IMPACT HAMMER TESTS

2020 ◽  
Author(s):  
Filippo Giammaria Pratico ◽  
Gianfranco Pellicano ◽  
Rosario Fedele
Keyword(s):  
Traffic Noise ◽  
Mechanical Impedance ◽  
Noise Pollution ◽  
Angular Frequency ◽  
Residential Areas ◽  
Impedance Boundary ◽  
Road Pavement ◽  
First Results ◽  
Induced Velocity ◽  
The Relationship

Noise pollution has become an important issue. One of the main sources of noise in residential areas is represented by transportation and by the interaction between tyre and road surface. Several studies illustrate that traffic noise is affected by road properties such as acoustic absorption, surface texture, and mechanical impedance. This latter, function of the angular frequency ω, is defined as the ratio of a force applied on a structure to the induced velocity. Despite a growing interest in mechanical impedance there is still lack of results about its impact on traffic noise. Consequently, the aim of the study presented in this paper is to investigate the relationship between road acoustic response and mechanical impedance. Tests (EN 29052-part 1, ISO 7626-5) have been performed on different types of samples and materials, using an impact hammer and an accelerometer. Investigations are still in progress. First results seem to demonstrate that both frequencies and other noise-related characteristics could be affected by changes of mechanical impedance, boundary conditions, tests, and type of material.

scholarly journals Comparison of Road Traffic Noise near High, Medium and Low Density Residential Areas in Nibong Tebal and Juru, Penang

2019 ◽  
Vol 11 (2) ◽  
Author(s):  
Herni Halim ◽  
◽  
Nur Hanani Farhah Mohd Hilmi ◽  
Mohamad Firdaus Mahamad Yusob ◽  
Nur Fatin Najiyah Hamid ◽  
...  
Keyword(s):  
Road Traffic ◽  
Traffic Noise ◽  
Road Traffic Noise ◽  
Low Density ◽  
Residential Areas

Understanding the Relationship between Urban Morphology and Behavior Pattern (Case Study : Kampung Arab Malang, Indonesia)

2018 ◽  
Vol 8 (7) ◽  
Author(s):  
Rayinta Putri Kurniasanti ◽  
Endang T. S. Darjosanjoto ◽  
Muhammad Faqih
Keyword(s):  
Behavior Pattern ◽  
Urban Morphology ◽  
And Behavior ◽  
The Relationship

Road Traffic Noise Levels at Different Types of Residential Areas in Nibong Tebal, Penang

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Herni Halim ◽  
◽  
Nur Fatin Najiyah Hamid ◽  
Mohamad Firdaus Mahamad Yusob ◽  
Nur Atiqah Mohamad Nor ◽  
...  
Keyword(s):  
Road Traffic ◽  
Traffic Noise ◽  
Road Traffic Noise ◽  
Residential Areas ◽  
Noise Levels ◽  
Different Types

scholarly journals The Contribution of Urban Morphology to the Formation of the Microclimate in Compact Urban Cores: A Study in the City Center of Thessaloniki

Urban Science ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 37
Author(s):  
Georgios-Rafail Kouklis ◽  
Athena Yiannakou
Keyword(s):  
Field Study ◽  
Urban Form ◽  
Simulation Method ◽  
Urban Morphology ◽  
Green Spaces ◽  
City Center ◽  
Outdoor Spaces ◽  
Microclimatic Conditions ◽  
The Relationship ◽  
The City

The purpose of this paper is to investigate the contribution of urban morphology to the formation of microclimatic conditions prevailing within urban outdoor spaces. We studied the compact form of a city and examined, at a detailed, street plan level, elements related to air temperature, urban ventilation, and the individual’s thermal comfort. All elements examined are directly affected by both the urban form and the availability of open and green spaces. The field study took place in a typical compact urban fabric of an old city center, the city center of Thessaloniki, where we investigated the relationship between urban morphology and microclimate. Urban morphology was gauged by examining the detailed street plan, along with the local building patterns. We used a simulation method based on the ENVI-met© software. The findings of the field study highlight the fact that the street layout, the urban canyon, and the open and green spaces in a compact urban form contribute decisively both to the creation of the microclimatic conditions and to the influence of the bioclimatic parameters.

scholarly journals Road traffic noise – the relationship between noise exposure and noise annoyance in Norway

2004 ◽  
Vol 65 (9) ◽  
pp. 893-912 ◽  
Author(s):  
R Klæboe ◽  
A.H Amundsen ◽  
A Fyhri ◽  
S Solberg
Keyword(s):  
Noise Exposure ◽  
Road Traffic ◽  
Traffic Noise ◽  
Road Traffic Noise ◽  
Noise Annoyance ◽  
The Relationship

scholarly journals Subclinical Hypothyroidism and Indices for Metabolic Syndrome in Japanese Women: One-Year Follow-Up Study

2013 ◽  
Vol 98 (8) ◽  
pp. 3280-3287 ◽  
Author(s):  
Yasuyo Nakajima ◽  
Masanobu Yamada ◽  
Masako Akuzawa ◽  
Sumiyasu Ishii ◽  
Yasuhiro Masamura ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Odds Ratio ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Serum Triglyceride ◽  
Low Density ◽  
Low Density Lipoprotein Cholesterol ◽  
Free T4 ◽  
The Relationship

Context: Subclinical hypothyroidism (SCH) and metabolic syndrome (MetS) increase with age; however, their relationship remains unclear. Objective: Our objective was to investigate the relationship between SCH and indices of metabolic syndrome and follow up subjects for 1 year. Design: Cross-sectional and longitudinal follow-up studies of cases were collected from Takasaki Hidaka Hospital between 2003 and 2007. Participants: Overall, 11 498 participants of health checkups were analyzed. The mean age was 48 ± 9 years. Main Outcome Measures: The relationship between SCH and indices of MetS were examined. Results: Serum free T4 levels were lower in women than men in most of the age groups, and the prevalence of SCH, 6.3% in women vs 3.4% in men, increased with age, reaching 14.6% in 70-year-old women. Multivariate logistic-regression analyses revealed that waist circumference and the serum triglyceride and low-density lipoprotein-cholesterol levels were significantly higher in subjects with SCH than without among women. Reflecting these findings, the adjusted odds ratio of MetS in patients with SCH was higher than in the euthyroid subjects in women with an odds ratio of 2.7 (95% confidence interval 1.1–5.6; P = .017) but not in men. Furthermore, progression from euthyroid into SCH resulted in a significant increase in the serum triglyceride levels but not low-density lipoprotein-cholesterol in women. Conclusion: Japanese women exhibited a high prevalence of SCH associated with low free T4 levels. There was a strong association between SCH and several indices of metabolic syndrome in women. SCH may affect serum triglyceride levels and be a risk factor for metabolic syndrome.

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