Investigation of the Traffic Noise Attenuation Provided by Roadside Green Belts

2015 ◽  
Vol 14 (04) ◽  
pp. 1550036 ◽  
Author(s):  
Samaneh Sadat Karbalaei ◽  
Elham Karimi ◽  
Hamid Reza Naji ◽  
Seyed Mahmood Ghasempoori ◽  
Seyed Mohsen Hosseini ◽  
...  
Keyword(s):  
Noise Level ◽  
Environmental Planning ◽  
Potential Role ◽  
Traffic Noise ◽  
Noise Pollution ◽  
Noise Attenuation ◽  
Green Belts ◽  
Trees And Shrubs ◽  
Level Reduction

Greenbelts are remarkably effective tools for minimizing traffic induced noise pollution. This study revealed the potential role of greenbelts along the roadside for the noise attenuation using various tree species of three different widths (25, 50 and 100[Formula: see text]m). Statistical analysis showed significant differences between stations. The reduction of noise level was also statistically analyzed. The results indicated that the greenbelts significantly contributed to the attenuation of noise pollution with positive correlation. The maximum noise level reduction compared to the open area was for trees and shrubs of 100[Formula: see text]m in width, and a mixture of conifers and broadleaves of 100[Formula: see text]m in width and 50[Formula: see text]m width by 44[Formula: see text]dB (A), 42.84[Formula: see text]dB (A) and 40.34[Formula: see text]dB (A), respectively. The results can be used as guidance for construction of tree belts for noise attenuation in environmental planning and management.

Traffic Noise Pollution Assessment in Major RoadJunctions of Imphal City, Manipur (India)

2021 ◽  
Author(s):  
WAZIR ALAM ◽  
Ramtharmawi Nungate
Keyword(s):  
Noise Level ◽  
Noise Exposure ◽  
Traffic Noise ◽  
Pollution Assessment ◽  
Noise Pollution ◽  
Pollution Level ◽  
Night Time ◽  
Noise Mapping ◽  
Noise Parameters ◽  
Spatial Noise

Abstract Noise pollution assessment was carried out in selected traffic junctions of Imphal city of Manipur, India. The noise pollution assessment was carried out using noise parameters and indices such as L10, L50, L90, Leq for selected traffic junctions during the different periods of the day, i.e., morning, noon, and evening hours. The study of equivalent noise level (Leq), noise parameters, and various noise indices have enabled the evaluation of the overall traffic noise environment of the city. The traffic noise indices such as traffic noise index (TNI), noise climate (NC), traffic noise pollution level (LNP), noise exposure index (NEI) along with day time (LD), night time (LN) average, and day-night (Ldn) noise levels were assessed for the selected traffic junctions. Moreover, spatial noise mapping was carried out using the geostatistical interpolation technique to evaluate the changes of traffic noise scenarios during the different time zones of the day. The Leq values in few traffic junctions exceeded the required noise standards. The study shows equivalent noise level ranging between 52.2–69.9 dB(A) during the morning (7–10 am), 52.4–69.3 dB(A) during noon (12 noon-2 pm), and 54.6–71.1 dB(A) during the evening (4–7 pm) hours, respectively.

scholarly journals Road Traffic Noise Pollution a Hazard

1970 ◽  
Vol 42 (4) ◽  
pp. 435-440
Author(s):  
Tayyaba Aftab ◽  
Farzana Bashir ◽  
Tahira Shafiq
Keyword(s):  
Noise Level ◽  
Road Traffic ◽  
Traffic Noise ◽  
Working Hours ◽  
Noise Pollution ◽  
Road Traffic Noise ◽  
Engineering Controls ◽  
Frequent Use ◽  
High Level ◽  
Average Noise Level

A road traffic noise study was conducted in Lahore at 18 busy places of high traffic flow in peak working hours of the day. It has been found that the day time average noise level has crossed the permissible limit of 85dB(A) at 90% busy points in the city. The maximum average noise level recorded in Lahore was 104 dB(A). This high level attributed to vehicular traffic specially auto rickshaw with ineffective silencers (without filters) and frequent use of the pressure horns by buses, wagons and trucks etc. The findings of the survey provide enough baseline data for engineering controls and interim legislation against traffic noise pollution. Key words: Noise pollution, Traffics load , Community health, Lahore city Bangladesh J. Sci. Ind. Res. 42(4), 435-440, 2007

scholarly journals Traffic Noise Levels in the City of Banja Luka

2018 ◽  
Vol 16 (1-2) ◽  
Author(s):  
Predrag Ilić ◽  
Dragana Nešković Markić ◽  
Ljiljana Stojanović Bjelić
Keyword(s):  
Noise Level ◽  
Environmental Problem ◽  
Traffic Noise ◽  
Noise Pollution ◽  
Environmental Noise ◽  
Noise Levels ◽  
Great Problem ◽  
Health Institutions ◽  
Banja Luka ◽  
The City

Noise pollution, as a major environmental problem, is present in Banja Luka. The measured values exceeded the level of noise allowed, which is a great problem. Evaluation of the noise levels was carried out in the streets in the area with health institutions. Objectives of this research were to evaluate the environmental noise pollution in the City of Banja Luka due to traffic noise and to compare the measured noise levels in the city with legislation and to establish the connection between noise and the number of vehicles. Correlation between the noise level and number of vehicles was positive and significant during the study period (r=0.89). It is confirmed that, with the increase of the number of vehicle, the noise level increases, i.e. the decrease in the number of vehicle decreases the noise level.

scholarly journals ECONOMIC ASPECTS OF THE CITY TRAFFIC NOISE: CASE STUDY // EKONOMSKI ASPEKTI BUKE OD GRADSKOG SAOBRAĆAJA: STUDIJA SLUČAJA

2018 ◽  
Vol 15 (1) ◽  
Author(s):  
Jelena Božić ◽  
Predrag Ilić ◽  
Ljiljana Stojanović Bjelić
Keyword(s):  
Noise Level ◽  
Road Traffic ◽  
Scientific Evidence ◽  
Traffic Noise ◽  
Noise Pollution ◽  
Common Denominator ◽  
Economic Implications ◽  
The Impact ◽  
The City

Noise pollution is one of the main environmental problems today.The main source of environmental noise is traffic noise, especially the noise of road vehicles. The continuing expansion of motorized transport in Europe and Republic of Srpska today, and especially the sharp increase in the use of private cars raises concerns about the health risks.The aim of the case study was to determine the noise level at the location „Borik“ in Banja Luka. The measured values indicate that the noise level in this street is alarming. This paper discusses health and well-being related impacts of traffic noise pollution as well as the economic and social benefits associated with its reduction. It summarizes the latest scientific evidence on the impact of road traffic-induced noise on physical and mental health as a reaction to the high level of traffic noise risks. According to the scientific evidence, road traffic is the main source of noise pollution in Europe that cause harmful health such as impaired communication and disturbed sleep, as well as adverse after effects such as fatigue and decreased performance, annoyance, hearing impairment, ischemic heart disease and hypertension. The effects of unhealthy noise level are reflected on living and working conditions, consequently affecting the economy.This paper highlights economic implications and health benefits linked to cross-functionalities in the process of noise reduction in urbanism, architecture and vehicle design and methods for its evaluation. Cost-benefit analysis would be a pivotal decision-making tool for the city road traffic and land-use decisions. Economic valuation is about identifying all preferences and translating them into a money measure, to create a common denominator for comparing the pros and cons. Any decision implicitly include a money value into health effects. A holistic approach is crucial, considering the various health and economic consequences together.

scholarly journals Traffic Noise Assessment at Residential Areas in Skudai, Johor

2018 ◽  
Vol 34 ◽  
pp. 02024
Author(s):  
F.S. Sulaiman ◽  
N. Darus ◽  
N. Mashros ◽  
Z. Haron ◽  
K. Yahya
Keyword(s):  
Noise Level ◽  
Traffic Noise ◽  
Noise Pollution ◽  
Traffic Volume ◽  
Sound Level ◽  
Pollution Level ◽  
Vehicle Speed ◽  
Residential Areas ◽  
Traffic Characteristics ◽  
Noise Assessment

Vehicles passing by on roadways in residential areas may produce unpleasant traffic noise that affects the residents. This paper presents the traffic noise assessment of three selected residential areas located in Skudai, Johor. The objectives of this study are to evaluate traffic characteristics at selected residential areas, determine related noise indices, and assess impact of traffic noise. Traffic characteristics such as daily traffic volume and vehicle speed were evaluated using automatic traffic counter (ATC). Meanwhile, noise indices like equivalent continuous sound pressure level (LAeq), noise level exceeded 10% (L10) and 90% (L90) of measurement time were determined using sound level meter (SLM). Besides that, traffic noise index (TNI) and noise pollution level (LNP) were calculated based on the measured noise indices. The results showed an increase in noise level of 60 to 70 dBA maximum due to increase in traffic volume. There was also a significant change in noise level of more than 70 dBA even though average vehicle speed did not vary significantly. Nevertheless, LAeq, TNI, and LNP values for all sites during daytime were lower than the maximum recommended levels. Thus, residents in the three studied areas were not affected in terms of quality of life and health.

Assessment of Traffic Noise Pollution due to Road Traffic

2021 ◽  
Vol 110 ◽  
pp. 87-97
Author(s):  
Gabriela Demian ◽  
Luminița Grecu ◽  
Mihai Demian
Keyword(s):  
Noise Level ◽  
Road Traffic ◽  
Traffic Noise ◽  
Noise Pollution ◽  
Road Transport ◽  
Time Of Day ◽  
Regression Method ◽  
Noise Sources ◽  
Industrial Activities ◽  
Level Measurement

The paper presents aspects related to noise pollution due to road traffic in Drobeta Turnu Severin. The main noise sources in Drobeta Turnu Severin are: road transport, railway and industrial activities. Based on the noise level measurement performed to assess the traffic noise over a period of 7 years, namely between 2013 and 2019, on an important road traffic artery in the mentioned city, predictions for its level over the next three years are made, correlating it with the number of cars that are supposed to cross the artery. For this study a road where the equivalent noise level exceeded the limit almost every year, was chosen. For obtaining the correlation between our data we have used the regression method. The noise level depends on the time of day in which the measurements were made but also on the season. Another correlation, between the equivalent noise level, and the number and type of cars was made, for a winter day in 2020, on another important artery, in order to see how much influence these factors have, on the noise level.

The Role of the Noise Maps for the Noise Management in the Cities

2015 ◽  
Vol 806 ◽  
pp. 280-286 ◽  
Author(s):  
Marianna Kazimierska-Grębosz ◽  
Ryszard Grądzki
Keyword(s):  
Noise Level ◽  
Traffic Noise ◽  
Software Systems ◽  
Negative Effects ◽  
Noise Map ◽  
Noise Management

The paper presents the application of noise maps in cities to reduce the traffic noise level on the streets. The division of noise maps, noise indicators for the evaluation of these maps as well as software systems used for creating noise maps are described in this paper. On the example of the strategic noise map of Lodz, the dangerous for the residents, noisy places as well as the positive and negative effects of applied protections are analyzed. The analysis of changes of the noise level in the period of five years is also presented.

scholarly journals PASSENGER CAR SPEED ASSESSMENT RELATIONSHIP TO THE NOISE CAUSED

ASTONJADRO ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 41
Author(s):  
Syaiful Syaiful ◽  
Rendy Andana
Keyword(s):  
Linear Regression ◽  
Noise Level ◽  
Traffic Noise ◽  
Noise Pollution ◽  
Vehicle Speed ◽  
Toll Roads ◽  
Traffic Data ◽  
Heavy Vehicles ◽  
Heavy Industry ◽  
Audio Technology

<p>Noise is defined as a human unwanted sound. The main sources of noise on toll roads are heavy vehicles and light vehicles. Noise pollution is often interpreted as unwanted sound or wrong sound at the wrong time. as heavy industry grows, traffic crowds, transportation facilities, and excessive use of audio technology. In addition there is generally noise strongly related to annoyance. Noise is everywhere and disturbance is one of the most common reactions to noise.. Speed is the size of a vector that shows how fast objects move. This research aims to find out the level of traffic noise and its distribution in front of SDN Cimahpar 01. The research method uses multiple linear analysis with the SPSS program by entering traffic data, vehicle speed and noise generated. The results were obtained that in SDN Cimahpar 01 area with the highest linear regression value between speed and noise that arises is 98% with linear regression equation y=52,390+0.298x1+0.229x2+0.245x3+0.205x4. Based on the similarity, the noise level value generated by the speed of the vehicle is 52.39 dBA with the provision of no increase or decrease in vehicle speed, this noise level is very strong because above the raw value of the activity noise level set by the Decree of the Minister of Environment No. 48 of 1996 which is 80 dBA.</p>

scholarly journals Assessment of the noise level on arterial streets depending on traffic flow indicators

2021 ◽  
Vol 2021 (2) ◽  
pp. 52-63
Author(s):  
Oleg Mironyuk ◽  
Keyword(s):  
Traffic Flow ◽  
Public Transport ◽  
Noise Level ◽  
Traffic Noise ◽  
Noise Pollution ◽  
Traffic Flows ◽  
Residential Areas ◽  
Protection Measures ◽  
Arterial Streets ◽  
On The Road

The intensity of traffic flows increases every year and intensifies its impact significantly on urban territory's ecologic situation and natural environment. In Ukrainian cities, the growth of noise pollution is quite a topical problem as it has a significant impact on the environment because of the increase in car numbers. Traffic flow intensity and densification of the built-up area cause the increase of the noise level. As analytical methods of calculation of determination of traffic noise level have several disadvantages, then for assessing the level of noise on arterial streets of Lviv city, research is carried out with consideration of traffic flow indicators. One of the critical criteria that have an impact on noise pollution in the urban environment is traffic flow composition. Conducted research indicates that the speed of traffic flow creates significant noise pollution, especially on those streets where cobblestone is a road pavement. Freight and passenger transport that moves along arterial streets causes the increase of noise level and increases its impact on the city territory. On sections of arterial streets in peak periods of the day with high values of volume-capacity ratio and general share of freight and public transport of more than 30% in a flow, the noise exceeds the acceptable norms and has a harmful impact on the environment. That is why it is necessary to assess noise pollution and the development of protection measures from noise during the planning and construction of some urban regions or residential areas. It is established that to lower the noise level on streets, it is necessary to consider existing intersections of arterial streets and the regime of movement on them. To lower transport noise, it is necessary to distribute freight and transit transport by city streets more rationally, use qualitative public transport, and limit the maximal speed regime on city streets. Further research on the road network will provide an opportunity to assess the noise level distribution of traffic flows in Lviv city. It will help to determine the problem places and propose methods of combating traffic noise.

scholarly journals Assessment of noise pollution at various locations of Gorakhpur

2021 ◽  
Vol 13 (1) ◽  
pp. 131-137
Author(s):  
Maharshi Yadav ◽  
Ratnesh Kumar Patel ◽  
Abhishek Yadav ◽  
Gaurav Sharma ◽  
Govind Pandey
Keyword(s):  
Human Activities ◽  
Noise Level ◽  
Traffic Noise ◽  
Noise Pollution ◽  
Low Noise ◽  
Educational Institutions ◽  
Noise Levels ◽  
High Noise ◽  
High Noise Level ◽  
Medical College

Noise pollution is one of the major concerns in big cities as well as in the crowded area of small cites, Gorakhpur is fastgrowing city and has many locations with high noise levels. Various crossroads and intersections have traffic issues this causes high noise level. In this study, three locations were selected for noise level assessment, nearby areas of Gorakhnath Temple, BRD medical college and MMMUT. These locations are educational (silent) and low noise level zone but because they situated near traffic roads, which cause high noise levels around them. In this study outside periphery of educational institutions noise level increases due to traffic. Noise level is found to be high due to large number of human activities.  

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