{"title":"估算印度德里大都市昼间等效水平的短期分层时间噪声监测策略","authors":"Saurabh Kumar, Naveen Garg, Chitra Gautam","doi":"10.1007/s12647-024-00759-w","DOIUrl":null,"url":null,"abstract":"<div><p>The present work analyses the accuracy of short-term noise monitoring strategies for estimating day equivalent sound levels (<i>L</i><sub>day</sub> or <i>L</i><sub>Aeq,6 am–10 pm</sub>) in Delhi city, India. The ambient noise monitoring data collected from 26 real-time noise monitoring stations, installed by Delhi Pollution Control Committee at distinct locations in Delhi city was utilized for the study. It was observed that average of randomly selected 1-h equivalent noise levels monitored in three sampling intervals in a day—06 am to 12 pm; 12 pm to 4 pm; and 4 pm to 10 pm, estimated <i>L</i><sub>day</sub> with an accuracy of ± 3.5 dBA with 95% probability. A dditionally, a stratified temporal sampling strategy for monitoring environment noise levels to estimate the day equivalent level for different zones was proposed with three stratified temporal intervals—9 am to 11 am; 2 pm to 3 pm; and 5 pm to 8 pm for commercial and industrial zones, and 9 am to 11 am; 12 pm to 2 pm; and 5 pm to 8 pm for residential and silence zones. It was observed that the day equivalent noise level can be estimated with an accuracy of ± 2.0 dBA for all the four zones with 95% probability if the noise levels are monitored for 1 h in each of three stratified temporal intervals. The present study may be helpful in conducting noise monitoring and mapping for a larger part of metropolitan cities of India, as continuous long-term (16-h) noise monitoring can be a quite cumbersome, time-consuming, and expensive process. </p></div>","PeriodicalId":689,"journal":{"name":"MAPAN","volume":"39 4","pages":"815 - 827"},"PeriodicalIF":1.0000,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Short-Term Stratified Temporal Noise Monitoring Strategies for Estimation of Day Equivalent Levels in Metropolitan City Delhi, India\",\"authors\":\"Saurabh Kumar, Naveen Garg, Chitra Gautam\",\"doi\":\"10.1007/s12647-024-00759-w\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The present work analyses the accuracy of short-term noise monitoring strategies for estimating day equivalent sound levels (<i>L</i><sub>day</sub> or <i>L</i><sub>Aeq,6 am–10 pm</sub>) in Delhi city, India. The ambient noise monitoring data collected from 26 real-time noise monitoring stations, installed by Delhi Pollution Control Committee at distinct locations in Delhi city was utilized for the study. It was observed that average of randomly selected 1-h equivalent noise levels monitored in three sampling intervals in a day—06 am to 12 pm; 12 pm to 4 pm; and 4 pm to 10 pm, estimated <i>L</i><sub>day</sub> with an accuracy of ± 3.5 dBA with 95% probability. A dditionally, a stratified temporal sampling strategy for monitoring environment noise levels to estimate the day equivalent level for different zones was proposed with three stratified temporal intervals—9 am to 11 am; 2 pm to 3 pm; and 5 pm to 8 pm for commercial and industrial zones, and 9 am to 11 am; 12 pm to 2 pm; and 5 pm to 8 pm for residential and silence zones. It was observed that the day equivalent noise level can be estimated with an accuracy of ± 2.0 dBA for all the four zones with 95% probability if the noise levels are monitored for 1 h in each of three stratified temporal intervals. The present study may be helpful in conducting noise monitoring and mapping for a larger part of metropolitan cities of India, as continuous long-term (16-h) noise monitoring can be a quite cumbersome, time-consuming, and expensive process. </p></div>\",\"PeriodicalId\":689,\"journal\":{\"name\":\"MAPAN\",\"volume\":\"39 4\",\"pages\":\"815 - 827\"},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2024-06-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"MAPAN\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12647-024-00759-w\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"INSTRUMENTS & INSTRUMENTATION\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"MAPAN","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s12647-024-00759-w","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
Short-Term Stratified Temporal Noise Monitoring Strategies for Estimation of Day Equivalent Levels in Metropolitan City Delhi, India
The present work analyses the accuracy of short-term noise monitoring strategies for estimating day equivalent sound levels (Lday or LAeq,6 am–10 pm) in Delhi city, India. The ambient noise monitoring data collected from 26 real-time noise monitoring stations, installed by Delhi Pollution Control Committee at distinct locations in Delhi city was utilized for the study. It was observed that average of randomly selected 1-h equivalent noise levels monitored in three sampling intervals in a day—06 am to 12 pm; 12 pm to 4 pm; and 4 pm to 10 pm, estimated Lday with an accuracy of ± 3.5 dBA with 95% probability. A dditionally, a stratified temporal sampling strategy for monitoring environment noise levels to estimate the day equivalent level for different zones was proposed with three stratified temporal intervals—9 am to 11 am; 2 pm to 3 pm; and 5 pm to 8 pm for commercial and industrial zones, and 9 am to 11 am; 12 pm to 2 pm; and 5 pm to 8 pm for residential and silence zones. It was observed that the day equivalent noise level can be estimated with an accuracy of ± 2.0 dBA for all the four zones with 95% probability if the noise levels are monitored for 1 h in each of three stratified temporal intervals. The present study may be helpful in conducting noise monitoring and mapping for a larger part of metropolitan cities of India, as continuous long-term (16-h) noise monitoring can be a quite cumbersome, time-consuming, and expensive process.
期刊介绍:
MAPAN-Journal Metrology Society of India is a quarterly publication. It is exclusively devoted to Metrology (Scientific, Industrial or Legal). It has been fulfilling an important need of Metrologists and particularly of quality practitioners by publishing exclusive articles on scientific, industrial and legal metrology.
The journal publishes research communication or technical articles of current interest in measurement science; original work, tutorial or survey papers in any metrology related area; reviews and analytical studies in metrology; case studies on reliability, uncertainty in measurements; and reports and results of intercomparison and proficiency testing.