Noise pollution is becoming a critical health risk for city life.In 2020,the COVID-19 pandemic forced many cities to implement several mobility restrictions.These restrictions changed human activity patterns and decre...Noise pollution is becoming a critical health risk for city life.In 2020,the COVID-19 pandemic forced many cities to implement several mobility restrictions.These restrictions changed human activity patterns and decreased the noise levels and noise pollution that often affect urban settings.As the number of infections decreased,so did the outdoor activities,influencing the population’s perception of noise.This paper aims to evaluate the changes in noise levels associated with mobility restrictions between 2020 and 2021 in Guayaquil,Ecuador.This study used crowdsourcing with the help of smartphones and mobile applications to collect geo-referenced environmental noise data.The data was used to generate noise maps in different time frames.Finally,noise level maps were created using GIS-based tools to identify the urban areas that experienced the highest noise level variation during the study period.The results show that the most significant noise increase occurred at night.Furthermore,when analyzing noise level changes in different urban areas,the western area of Guayaquil was the one that experienced the most significant noise level variation.Findings inform the perception of noise pollution and could potentially serve as a reference for decision-makers during the proposal of public policies that ensure a better quality of life for its citizens.展开更多
Some cities worldwide have oil wells directly affecting the management of the territory.For example,La Libertad and Salinas districts contain 467 oil wells in urban areas representing a major land-use planning challen...Some cities worldwide have oil wells directly affecting the management of the territory.For example,La Libertad and Salinas districts contain 467 oil wells in urban areas representing a major land-use planning challenge.The objective is to apply the CLUE-S land use model in coastal cities with oil wells(Salinas-La Libertad),using geographic information systems considering environmental and security characteristics for territorial development.The stages of the study are:i)classification and categorisation of oil wells;ii)application of the GIS-CLUE-S method and visualisation of land use dynamics;iii)use the SWOT-TOWS matrix,for the analysis of the situation and the main factors affecting the territory.The results indicate high vulnerability in many urban sectors and those close to the coastline.Furthermore,the CLUE-S analysis shows that the population growth in the urban sector is close to oil well areas,making it a complex pole of human-industry interaction that impacts the management of the territory.This study synthesises three technical aspects:some oil wells do not comply with municipal ordinance regulations;identification of vulnerable zones due to environmental and security factors,which recommends a territorial reordering policy;as well as an education plan for the application of territorial ordering policies,with awareness and sustainability projections.展开更多
文摘Noise pollution is becoming a critical health risk for city life.In 2020,the COVID-19 pandemic forced many cities to implement several mobility restrictions.These restrictions changed human activity patterns and decreased the noise levels and noise pollution that often affect urban settings.As the number of infections decreased,so did the outdoor activities,influencing the population’s perception of noise.This paper aims to evaluate the changes in noise levels associated with mobility restrictions between 2020 and 2021 in Guayaquil,Ecuador.This study used crowdsourcing with the help of smartphones and mobile applications to collect geo-referenced environmental noise data.The data was used to generate noise maps in different time frames.Finally,noise level maps were created using GIS-based tools to identify the urban areas that experienced the highest noise level variation during the study period.The results show that the most significant noise increase occurred at night.Furthermore,when analyzing noise level changes in different urban areas,the western area of Guayaquil was the one that experienced the most significant noise level variation.Findings inform the perception of noise pollution and could potentially serve as a reference for decision-makers during the proposal of public policies that ensure a better quality of life for its citizens.
文摘Some cities worldwide have oil wells directly affecting the management of the territory.For example,La Libertad and Salinas districts contain 467 oil wells in urban areas representing a major land-use planning challenge.The objective is to apply the CLUE-S land use model in coastal cities with oil wells(Salinas-La Libertad),using geographic information systems considering environmental and security characteristics for territorial development.The stages of the study are:i)classification and categorisation of oil wells;ii)application of the GIS-CLUE-S method and visualisation of land use dynamics;iii)use the SWOT-TOWS matrix,for the analysis of the situation and the main factors affecting the territory.The results indicate high vulnerability in many urban sectors and those close to the coastline.Furthermore,the CLUE-S analysis shows that the population growth in the urban sector is close to oil well areas,making it a complex pole of human-industry interaction that impacts the management of the territory.This study synthesises three technical aspects:some oil wells do not comply with municipal ordinance regulations;identification of vulnerable zones due to environmental and security factors,which recommends a territorial reordering policy;as well as an education plan for the application of territorial ordering policies,with awareness and sustainability projections.
