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Comparison of Solid Waste Generation During and Before Pandemic Covid-19 in Indonesia Border Island (Riau Islands Province, Indonesia)

Sari Mega Mutiara, Septiariva Iva Yenis, Istanabi Tendra, Suhardono Sapta, Sianipar Imelda Masni Juniaty, Tehupeiory Aarce, Suryawan I. Wayan Koko

Ecological Engineering & Environmental Technology

2023

Vol. 24, iss. 2

251--260

Waste in the archipelagic border area must be appropriately managed to maintain diplomatic relations. Indonesia’s Riau Islands Province is an archipelagic region in Indonesia with limited solid waste infrastructure development. The capacity of the waste infrastructure depends on the rate of waste generation and is influenced by the socioeconomic conditions of the community. This study aims to study the model for estimating the rate of waste generation in the Riau Islands. This study uses data before and during the Covid-19 pandemic in 2019 and 2020. The estimation model uses a multiple linear regression model with independent variables such as gross regional domestic product, access sanitation, total population, and human development index. The fixed variable is the incidence of waste generation rate. During the pandemic Covid-19, the generation and composition of waste in the Riau Islands Archipelago did not experience significant changes, so the waste generation and composition characteristics are the same. However, the variable human development index (0.053) and the population (0.012) significantly increase the waste generation rate. The gross regional domestic product (0.017) negatively correlates, reducing the waste generation rate. The Riau Islands, which has an ocean area of 96%, is a source of life and significant to manage because the waste can be released into the ocean. Therefore, management from sources through policies considering the gross regional domestic product, total population, and human development index needs to be considered to reduce waste generation in the archipelago.

Analiza zmiany rozkładu ruchu we wschodniej części województwa podkarpackiego po oddaniu do użytku odcinka autostrady A4 między węzłami Rzeszów Wschód i Jarosław Zachód

Bryniarska Zofia, Jasłowska Magdalena

Transport Miejski i Regionalny

2022

nr 1-2

20--30

Analizy zmiany rozkładu ruchu są zagadnieniem niezbędnym do planowania przyszłych inwestycji drogowych, ale również dzięki nim można potwierdzić bądź podważyć zasadność wykonania inwestycji. Dodatkowo analizując zmiany i przewidując ich skutki można w pewnym stopniu kształtować rozwój wybranych obszarów, poprzez poprawianie ich dostępności transportowej. Celem artykułu jest przeprowadzenie analizy zmian w rozkładzie ruchu we wschodniej części województwa podkarpackiego po oddaniu do użytku odcinka autostrady A4 między węzłami Rzeszów Wschód i Jarosław Zachód. Poza zbadaniem zmian w rozkładzie ruchu między kolejnymi generalnymi pomiarami ruchu, analizie poddane zostały również prognozy ruchu, a także koszty społeczno-ekonomiczne ponoszone przez społeczeństwo dla wariantu bezinwestycyjnego i po powstaniu brakującego odcinka autostrady. Na potrzeby artykułu przygotowane zostały zestawienia tabelaryczne oraz mapy danych otrzymanych z Generalnej Dyrekcji Dróg Krajowych i Autostrad. Na podstawie otrzymanych danych sporządzono prognozy ruchu, które zostały przedstawione w formie wykresów. Dokonano obliczeń niezbędnych do przeprowadzenia analizy kosztów i korzyści zgodnie z metodyką przedstawioną w Niebieskiej Księdze, w części dotyczącej infrastruktury drogowej.

Analysis of changes in the traffic distribution are necessary for planning future road investments, but also thanks to them, it is possible to confirm or question the relevance of the investment. Additionally, by analysing the changes and predicting their effects, it is possible to some extent to shape the development of selected areas by improving their transport accessibility. The aim of the article is the analysis of the change in traffic distribution in the Eastern part of the Podkarpackie Voivodship Province after completion the A4 motorway section between the Rzeszow East and Jarosław West junctions. The article contains a comparison of data as of 2015 and 2020 and traffic forecasts for 2016-2040, as well as a socio-economic analysis. In addition to examining the changes in the traffic distribution between successive general traffic measurements, the analysis also covers traffic forecasts, as well as socio-economic costs incurred by the society for the non-investment variant and after the construction of the missing motorway section. For the purposes of this article, tables and maps of data obtained from the General Directorate for National Roads and Motorways have been prepared. On the basis of the gathered data, traffic forecasts have been prepared, which were presented in the form of charts. The calculations necessary to carry out the cost-benefit analysis were made in accordance with the methodology presented in the Blue Book in the part concerning road infrastructure.

Socio-economic analysis of riverine flooding on low-income dwellings: Adayar River, a case study

Saravanan Suriva, Basavaraj Mudgal, Nelliyat Prakash

Civil and Environmental Engineering Reports

2020

Vol. 30, no. 2

133--157

Flood damage assessment plays a vital role in providing information to policy developers. Nowadays, due to urbanization, the impact of flooding on communities is extensive, including tangible damage to property, the environment, and infrastructure as well as intangible damage due to stress, health hazards, and hardship. This paper provides an overview of a detailed flood assessment study conducted in the Kotturpuram Housing board area, located on the flood plain of the Adayar River in Chennai, India. A relatively simple approach to data collection was adopted, being a Questionnaire Survey (QS) as well as semi-structured interviews and observation techniques, due to data and research limitations. Losses due to damage to belongings and extra spending to buy essential commodities during flooding are also dealt with in this study. The flood mitigation costs for flooding that occurred in the year 2015 are also evaluated. A stagedamage curve was arrived at based on the information collected. Optimal and sustainable mitigation measures can be achieved only when the socio-economic aspects are adequately considered. Thus, this analysis was designed to estimate the effects of flooding on a community’s social and economic welfare, and thereby help to educate the community, including residents and officials, about the impact and magnitude of flooding. The outputs of the study will be the key inputs for designing flood mitigation and relief measures.