System

Noise Mapping

Noise pollution, a man-made disaster in the present times, is becoming more severe and pervasive than ever before due to rapid urbanization, affecting quality of life in urban areas in India. Transit areas generate excessive noise which proves disastrous to human health. However, very few studies have mapped noise levels of transit terminals in India. The objectives of this study are (i) assessment of noise levels in Ganeshpeth Bus Terminus, the major interstate bus terminus in Nagpur and generation of noise contour map in ArcGIS and (ii) a qualitative assessment of the impact of traffic-related noise on the health of the people working in the terminus with prolonged exposure to noisy environment, by conducting a health perception survey based on a questionnaire comprising indicators of health parameters. This is a first-of-its-kind study on noise mapping at an interstate bus terminus in India. The results indicate that the noise levels all over the bus terminus site are much higher...

Noise is unwanted sound which is generally unpleasant to hear and affect human beings physically, mentally and physiologically. The study analyzed the noise pollution level at four location of New Delhi, selecting one location in each zone i.e., residential, commercial, industrial and silent. The analytical results show that the highest noise level was 81.5 dB at Okhla industrial area and lowest was 67 dB at Moti Bagh. Comparison of noise level with regulatory standards reveals that the noise levels at all the selected locations has been 25dB more than the prescribed standard given by central pollution control board in day time. Furthermore, it has also shows that the all monitoring locations have been continuously under severe noise exposure. The findings of this study show that there is extreme requirement of remedial measures to curb noise level.

ABSTRACT : Nashik city is the divisional headquarter of North Maharashtra with 1.4 million populations. Rapid increase in industrialization and uncontrolled migration towards urban center leads to the noise pollution which becomes a critical issue. Noise pollution due to traffic is one of the major problems in large urban centers. In the present study 21 different neighborhoods and certain noise parameters such as leek, Lmax, Lmin, L10, L50, L90 and NPL (Noise Pollution Level) were selected for the evaluation of noise level in different part of Nashik city. The measurement was performed at specified time 8-10a. m., 1-3p. m. and 7-9p.m. for 15 min. The equivalent noise level of all 21 sites crosses the standard permissible limits and ground in the range between 63.0 to 98.6dB (morning), 63.5 to 96.6dB (afternoon) and 64.0 to 103.2dB (evening). The study reveals that, noise levels in different urban corridors of Nashik city, mostly observed high in all sampling sites, which are above mostly above permissible limits. Keywords: Noise level, urban corridors, dB, traffic

Current World Environment

Noise pollution is a growing problem across the world and one which many people may not be aware of the impacts on their health. The environmental noise, and in particular the road traffic noise, remains a major environmental problem affecting the health and well-being of millions of people. With this background, a comprehensive ‘noise pollution assessment study’ was undertaken for a busy traffic corridor of Ahmedabad city of India. The traffic corridor which spans around 22.25 km passes through a mix of different areas like educational, commercials and residential. A two week long field survey was carried out on this corridor during 10-23 May, 2018 at 24 locations spread over the entire corridor. The assessment reveals that the average noise level always exceeded the prescribed guidelines of World Health Organization (WHO) for the daytime noise (75 dB (A) for Industrial area, 65 dB (A) for Commercial area, 55 dB (A) for Residential area and 50 dB (A) for Silence zones), which is qu...

PLOS ONE

Noise monitoring and mapping is the critical processes to ensure that the noise level does not reach the harmful levels and provides noise exposure level details. 2-D and 3-D noise mapping has been carried out at pre-selected critical locations of major roads passing through densely populated residential areas, namely, Mathura Road, Lodhi Road, Lala Lajpat Rai Road, and Ring road, along with significant intersections, viz. Moolchand, Ashram, Sabz Burj, and Lodhi road. The monitoring has been performed during the day and night’s peak traffic hours using Sound Level Meter (SLM) Larson & Davis 831as per standard procedure. Then after, 2-D and 3-D noise maps have been prepared, visualized, and analyzed by soundPLAN (acoustic) and MapInfo Pro (Desktop GIS). The maximum noise level is observed at Ashram Chowk [81.1 dB (A)] at 8 pm; however, the minimum noise level is found to be at Lala Lajpat Rai Road [76.4dB (A)] at 7 pm. Monitoring results of noise level show non-compliance of regulato...

INTERNATIONAL JOURNAL FOR TRAFFIC AND TRANSPORT ENGINEERING, 2014

Traffic related noise pollution accounts for nearly two-third of the total noise pollution in an urban area. Noise, a by product of urbanization, industrialization and motorization, is increasingly recognized as an environmental nuisance that effects human health and wellbeing. Traffic noise on existing urban roadways lowers the quality of life and property values for persons residing near these urban corridors Surat is now the tenth largest city of India having an estimated population of 40 lakhs plus at present. An inconceivable population growth rate of 76.02 % was observed in the last decade as a result of rapid industrialization. Surat is well known as diamond city and is also famous for silk and jari industry. Owing to its rapid industrialization and better job opportunities, observation is made for the migration from all over India and particularly from Orissa, U.P., M.P., Bihar and Rajasthan. Due to explosion of population and rapid industrialization the transportation in th...

IRJET, 2021

Noise is a phrase related to unwanted noise that disrupts the high-quality of lifestyles .Whilst the noise in the atmosphere exceeds a hard and fast limit is called noise .Maximum noise interferes with day by day activities which includes sleep, conversation. It's far a form of pollutants that turned into previously left out but as increase and development took place, excessive noise started to disrupt human interest. This leads to the identity, measurement and manipulate of noise through who. The paper provides a description of noise pollutants facts from lucknow metropolis bus stations in february 2021. Exposure to excessive noise ranges may want to motive serious damage to the noise and sensory-related machine. The noise stage is monitored in nahariya for 2 days with the help of sound strain (spl 1352). As these bus stations are placed inside the significant and internal bus station as they join lucknow to numerous neighboring regions so the noise produced right here could be very high. A excessive range of buses are used from those bus stations to cater for the demand. With the help of sound numerous sound parameters are calculated as l10, l90, l50, leq, nc, lnp and tni. For the purpose of proper studying and sound representation at the bus station. Leq price in nahariya levels from seventy seven.8-eighty four.4db. As loud noise at the bus station it reasons intellectual disturbance to passengers which desires to be taken into consideration whilst designing the bus depot and due care should be paid to reduce stress for passengers as the variety of buses increases so the noise level. As lucknow is still in the method of development it therefore identifies areas with a hot noise place and puts in place appropriate answers and strategies to manipulate the risk of noise pollution.

International Journal of Engineering Research and Technology (IJERT), 2014

https://www.ijert.org/a-study-of-noise-pollution-in-some-highway-corridor-near-gorakhpur-city https://www.ijert.org/research/a-study-of-noise-pollution-in-some-highway-corridor-near-gorakhpur-city-IJERTV3IS120001.pdf In the past few decades, traffic noise along highways has emerged as point of concern for the community residing in the nearby area. Roads are considered to be the arteries of the nation and, therefore, their development is to be taken up on high priority. At the same time, the increasing trend of traffic noise along the highways has necessity to the assessment of noise and traffic planning based on appropriate predictive approaches. The assessment of traffic noise is also important from the point of view of looking into noise exposed to the population and the adverse effect on the human health related therewith. In the present paper, the traffic noise along highway corridors on National Highways (NH-28, NH-29) and State Highways (SH-01, SH-81) passing near Gorakhpur city, has been observed at 12 sampling stations, 3 on each highway with the help of a sound level meter (Make Bruel and Kjaer-2232) and the energy equivalent noise levels have been calculated. The traffic noise prediction is done with the help of Federal Highway Administration (FHWA) model using the traffic volume and speed data recorded at different sampling stations, namely-Army Public School, Padleygunj Chauraha, and Transport Nagar‖ on NH-28,-Nausad Chauraha, Mahabir Chhapra, and Belipar‖ on NH-29,-Chauri Chaura, Motiram Adda, and Kunraghat‖ on SH-01,-Asuran Chauraha, BRD Medical College, and Gularahia‖ on SH-81. The percentage error between the observed and the predicted values of energy equivalent noise levels is calculated. The agreement diagram is plotted between the observed and predicted values for the data pertaining to National Highways and State Highways separately. It is revealed that the noise levels predicted by FHWA model lie within an error band of ± 20% with reference to the observed noise levels. Thus, it is indicated that FHWA model can be used for the prediction of traffic noise in India under its own limitations of accuracy. The assessment of observed noise levels with respect to standards is also presented and it is recommended that the regulation of traffic volume and speed can be implemented to control the noise within permissible limit. The outcome of the study may be of immense help in traffic planning and environmental assessment of the highway projects especially with respect to traffic noise. It is recommended that traffic noise assessment should be taken up on all the highway of the country on priority with a view to ascertain the status of noise pollution in the adjoining areas and the effect on human health.

Journal of environmental biology, 2011

Noise pollution is a significant environmental problem in many rapidly urbanizing areas of Orissa, India. Transportation sector is one of the major contributors to noise in these areas. The present study is an attempt to estimate traffic noise pollution at five places on the way from Vyasa Vihar Campus to Gyan Vigyan Vihar Campus of Fakir Mohan University, Balasore, Orissa. The sources of noise at the studied sites are predominantly attributable to motor vehicular traffic. The noise levels of all the five locations were found to be beyond permissible limit during the day time. The contributions of different types of vehicles to environmental noise were found to ranging from 70.4-94.2, 79.0-96.1, 77.8-110.2, 70.8-90.3, 71.0-87.5, 71.1-84.4, 72.5-86.9 and 74.0-85.4 dB (A) by cargo carrying Trucks, Tractors, Dumpers, Town Buses, Motor cycles, Bolero/Trucker, Pick up and Tempo respectively. The contributions of individual vehicles towards noise pollution were found to be more than the r...