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Rationalization of Rainfall Station Density in the Jatiroto Sub-Watershed Using Ground and Satellite Rainfall Data 利用地面和卫星降水资料对Jatiroto小流域雨量站密度的合理化研究
Civil and Environmental Science Pub Date : 2022-10-03 DOI: 10.21776/ub.civense.2022.00502.3
Anggit Megantara, S. Wahyuni, L. Limantara
{"title":"Rationalization of Rainfall Station Density in the Jatiroto Sub-Watershed Using Ground and Satellite Rainfall Data","authors":"Anggit Megantara, S. Wahyuni, L. Limantara","doi":"10.21776/ub.civense.2022.00502.3","DOIUrl":"https://doi.org/10.21776/ub.civense.2022.00502.3","url":null,"abstract":"This study uses ground and CHIRPS data to rationalize the density of rainfall stations in the Jatiroto Sub-watershed, Lumajang Regency. This study aimed to determine the suitability of the CHIRPS satellite rainfall data to the measurement data. In addition, it determines the density of rainfall stations based on WMO standards. Also, the Kagan-Rodda method uses measurement and satellite data to determine rainfall station recommendations' results. The method used for the suitability test uses the value of RMSE, NSE, Correlation Coefficient, and Relative Error. And the WMO standard for analyzing the number of rainfall station. Knowing the rationalization and recommendations for placing rainfall stations using the Kagan-Rodda method by considering WMO standards, root mean square error, and interpolation errors. The results obtained include the appropriateness of satellite data, the number of rainfall stations at the research location according to WMO standards, and recommendations for rainfall stations based on Kagan-Rodda","PeriodicalId":432135,"journal":{"name":"Civil and Environmental Science","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123037832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Factors Affecting Commuters' Intentions in Using Park and Ride (P&R) Facilities Based on Theory of Planned Behavior 基于计划行为理论的通勤者停车换乘意愿影响因素研究
Civil and Environmental Science Pub Date : 2022-10-03 DOI: 10.21776/ub.civense.2022.00502.4
Sara Irawati, I. Agustin, Ismu Rini Dwi Ari
{"title":"Factors Affecting Commuters' Intentions in Using Park and Ride (P&R) Facilities Based on Theory of Planned Behavior","authors":"Sara Irawati, I. Agustin, Ismu Rini Dwi Ari","doi":"10.21776/ub.civense.2022.00502.4","DOIUrl":"https://doi.org/10.21776/ub.civense.2022.00502.4","url":null,"abstract":"Park and Ride (P&R) is a form of transportation demand management closely related to commuting activities. Several developed countries, such as the UK, Canada, China, and Hong Kong already implemented P&R with a high level of effectiveness and success in overcoming the congestion problems in the city center, low use of public transportation, and air pollution. However, in developing countries, the various positive impacts of P&R still have not been able to encourage commuters' intentions to use these facilities. The level of P&R use at Sidoarjo Station is still relatively low (44.3%). Behavioral is one of several keys to the success of P&R that depends on intention and ability. The intention is the result of knowledge, social, and infrastructure that can support the use of public transport and P&R. This study aims to identify factors that can influence commuters' intentions to use P&R at Sidoarjo Station based on the theory of planned behavior using SEM analysis. The results showed that P&R and public transportation conditions as perceived behavioral control were the most influential factors on commuter intentions. The conditions of public transportation (including availability and location) and the quality of P&R facilities are also essential considerations for commuters using P&R","PeriodicalId":432135,"journal":{"name":"Civil and Environmental Science","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123554347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mathematical model distribution of some water quality parameters in the reservoir 水库水质参数的数学模型分布
Civil and Environmental Science Pub Date : 2022-04-01 DOI: 10.21776/ub.civense.2022.00501.7
R. Sayekti, S. Wahyuni, M. Bisri, Janu Ismoyo, Nadya Nathania
{"title":"Mathematical model distribution of some water quality parameters in the reservoir","authors":"R. Sayekti, S. Wahyuni, M. Bisri, Janu Ismoyo, Nadya Nathania","doi":"10.21776/ub.civense.2022.00501.7","DOIUrl":"https://doi.org/10.21776/ub.civense.2022.00501.7","url":null,"abstract":"Sutami Reservoir is one of the largest reservoirs in East Java Province and is very useful in the life of people in Malang. However, the water quality of Sutami reservoir currently degrades due to waste. This study aims to determine water quality using the pollution index method and mathematical modeling. Polynomial regression is the most suitable mathematical model. It was obtained by statistical testing and adjusted based on population index data. Sutami Reservoir is classified as a reservoir with a eutrophic trophic status. The load capacity in eutrophic conditions at the monitoring station revealed that the levels exceeded the maximum pollution load limit. The relevant authorities need to take action to overcome the waste problems which contribute to the degradation of water quality in Sutami reservoir","PeriodicalId":432135,"journal":{"name":"Civil and Environmental Science","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124945372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mapping of tourism potential and assessment of development stages in Sidomulyo Tourism Village, Batu City 拔都市泗多木里约旅游村旅游潜力测绘及发展阶段评价
Civil and Environmental Science Pub Date : 2022-04-01 DOI: 10.21776/ub.civense.2022.00501.10
Widya Augusty, A. Subagiyo, W. Wijayanti, G. Prayitno
{"title":"Mapping of tourism potential and assessment of development stages in Sidomulyo Tourism Village, Batu City","authors":"Widya Augusty, A. Subagiyo, W. Wijayanti, G. Prayitno","doi":"10.21776/ub.civense.2022.00501.10","DOIUrl":"https://doi.org/10.21776/ub.civense.2022.00501.10","url":null,"abstract":"The Batu City Government is currently developing a tourism Village. The policy was adopted in the strategic plan of the Batu City Tourism Office in the field of tourism product development by increasing the number of tourism villages that have the adequate infrastructure; one of them is Sidomulyo Village. The success of developing a tourism village can be seen in the benefits of managing a tourism village to improve the welfare of the local community. Tourism villages can develop optimally if the area's potential can be identified properly. Therefore, this research was conducted to identify the tourism potential of Sidomulyo Village and assess the stages of its development as a tourism village in Batu City. The sample used in the study is the stakeholders selected by considering the sample are individuals who understand the actual conditions of the development of Sidomulyo Village as a tourism village and are involved in the management of tourism villages. The scoring analysis technique is used to assess the development stages with a variable in the form of a tourism village aspect. The research shows that Sidomulyo Tourism Village is in an advanced stage based on the highest score for the attraction aspect, while the lowest for the information aspect and institutional aspect","PeriodicalId":432135,"journal":{"name":"Civil and Environmental Science","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116395316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Cafe market share using satellite image data and Google Database in Malang City 利用卫星图像数据和谷歌数据库在玛琅市的咖啡馆市场占有率
Civil and Environmental Science Pub Date : 2022-04-01 DOI: 10.21776/ub.civense.2022.00501.6
A. Hasyim, E. Kurniawan, W. Purnamasari
{"title":"Cafe market share using satellite image data and Google Database in Malang City","authors":"A. Hasyim, E. Kurniawan, W. Purnamasari","doi":"10.21776/ub.civense.2022.00501.6","DOIUrl":"https://doi.org/10.21776/ub.civense.2022.00501.6","url":null,"abstract":"Cafes in Malang City have a very large quantity. Almost every main road corridor in Malang City has a small, medium, or large cafe. In a competitive situation, location factors can be critical, making it very important. Therefore, a study is needed to analyze the market share of cafes in Malang City from its spatial elements. This study aims to determine the spatial factors that affect the market share of cafes based on sample data in the form of upper-middle-class cafes in Malang City. The variables used to measure the market share of the café sample spatially are proximity to universities, building density, road hierarchy, rating, and several competitors. This study uses Google Satellite Image Data sources and remote sensing methods for processing spatial data and analyzes it using Multiple Linear Regression Analysis. Based on the analysis results, it is known that all variables are positive. The variables that have the most influence on the market share of the café sample are building density, university proximity, and road hierarchy","PeriodicalId":432135,"journal":{"name":"Civil and Environmental Science","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130607273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact on The Existence of New Toll Road Section Due to Mode Choice Between Transportation Mode Using Modal Split Methods (Case Study: Tulungagung-Surabaya) 模式分割方法下交通方式选择对新收费路段存在性的影响(以土伦加贡-泗水为例)
Civil and Environmental Science Pub Date : 2022-04-01 DOI: 10.21776/ub.civense.2022.00501.3
Muhammad Bahariansyah, Wahyu Herijanto, H. Widyastuti
{"title":"Impact on The Existence of New Toll Road Section Due to Mode Choice Between Transportation Mode Using Modal Split Methods (Case Study: Tulungagung-Surabaya)","authors":"Muhammad Bahariansyah, Wahyu Herijanto, H. Widyastuti","doi":"10.21776/ub.civense.2022.00501.3","DOIUrl":"https://doi.org/10.21776/ub.civense.2022.00501.3","url":null,"abstract":"The Java-trans highway is almost connected from west to the east of Java Island and now, there is a new section that will be built, those are Kertosono-Kediri section and Kediri-Tulungagung section. The Impact from these construction in the future will shorten the travel time. Tulungagung-Surabaya buses which use the highway only take 3-3,5 hours of travel time with route combinations between national and highway roads. This research aims to find the model of mode choice proportion between bus, non-toll bus, cars, and train due to Tulungagung-Surabaya’s highways in 2023. The travel attributes used in this research are travel time and travel cost between bus, non-toll bus, cars, and train. Then, the model could predict the mode choice proportion in the future, after the construction finished. The method for modelling is modal split which uses power function (α) and deterrence function (β). Mode choice model that is used is a modal split with power function (α) with NMAE values 0,5284 which is close to 0. The interpretation of NMAE value is the smaller the value the better the model, because the model would represent the existing condition in which the model could predict future condition","PeriodicalId":432135,"journal":{"name":"Civil and Environmental Science","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116506347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of Surface Water Treatment Plan (WTP) Effluent and Distribution Water Quality in Wonogiri Regency, Central Java 中爪哇woogiri县地表水处理计划(WTP)出水和分布水质的确定
Civil and Environmental Science Pub Date : 2022-04-01 DOI: 10.21776/ub.civense.2022.00501.1
W. Oktaviani, Ariyanti Sarwono, W. K. Suryawan
{"title":"Identification of Surface Water Treatment Plan (WTP) Effluent and Distribution Water Quality in Wonogiri Regency, Central Java","authors":"W. Oktaviani, Ariyanti Sarwono, W. K. Suryawan","doi":"10.21776/ub.civense.2022.00501.1","DOIUrl":"https://doi.org/10.21776/ub.civense.2022.00501.1","url":null,"abstract":"This study analyzed the water treatment system into drinking water, and the quality of raw water and distribution results at Perumda Air Minum Giri Tirta Sari, Wonogiri Regency. The water treatment plant's (WTP) for surface water consists of intake, pre-sedimentation, coagulation, flocculation, sedimentation, filtration, reservoir storage, and distribution. The sludge resulting from the deposition process is still not managed. Further planning is needed to control environmental pollution that may occur due to dumping sludge into streams. The quality of river raw water that has not met the quality standard is total coliform and color. Measurement of water on the customer's tap shows that all the quality standards of drinking water have met the criteria to be safe for use by residents","PeriodicalId":432135,"journal":{"name":"Civil and Environmental Science","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114179033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The characteristics of combustion of non-catalyst Rubber Seed Oil (Hevea Brasilliensis) combustion with variations of Methanol mixture 研究了橡胶籽油(橡胶树)在不同甲醇混合物中的燃烧特性
Civil and Environmental Science Pub Date : 2022-04-01 DOI: 10.21776/ub.civense.2022.00501.8
R. Subagyo, N. Ambarwati, Muchsin Muchsin
{"title":"The characteristics of combustion of non-catalyst Rubber Seed Oil (Hevea Brasilliensis) combustion with variations of Methanol mixture","authors":"R. Subagyo, N. Ambarwati, Muchsin Muchsin","doi":"10.21776/ub.civense.2022.00501.8","DOIUrl":"https://doi.org/10.21776/ub.civense.2022.00501.8","url":null,"abstract":"This study aims to analyze the characteristics of the combustion of a mixture of rubber seed oil with methanol using droplets. The observed characteristics are flame temperature, ignition delay time, combustion rate, and visualization (high heat and flame colour). The variation of the mixture used in this study was a mixture of rubber seed oil and methanol with mixed percentages of 0%, 10%, 20%, 30%, 40%, and 50%. The droplet tool used for research is a tool designed by the researcher. The results showed that the highest flame temperature value was found in the 0% mixture, 114oC, and the lowest was in the 50% mixture, namely 79.67ºC. The highest Ignition delay time value is in the 0% mixture, which is 3.33 s, and the lowest is at 50%, which is 2.21 s. The highest combustion rate value at 50% mixture is 0.517 mm2/s and the lowest at 0% is 0.317 mm2/s. The highest flame height in the 0% mixture was 42.6 mm, and the lowest at 50% was 23 mm","PeriodicalId":432135,"journal":{"name":"Civil and Environmental Science","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124943885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Public Attitude to Urban Public Transportation Services in Jember, Indonesia 印度尼西亚公众对城市公共交通服务的态度
Civil and Environmental Science Pub Date : 2022-04-01 DOI: 10.21776/ub.civense.2022.00501.5
W. Kriswardhana, N. Hayati, A. Kusdiyanto
{"title":"Public Attitude to Urban Public Transportation Services in Jember, Indonesia","authors":"W. Kriswardhana, N. Hayati, A. Kusdiyanto","doi":"10.21776/ub.civense.2022.00501.5","DOIUrl":"https://doi.org/10.21776/ub.civense.2022.00501.5","url":null,"abstract":"In this current condition, people’s interest in using public transportation in Jember is decreasing with a low load factor value below 50%. It can be caused by the quality of services provided by service providers to the satisfaction of public transport users. Importance-Performance Analysis (IPA) method is used to determine the level of satisfaction of public transport users in Jember District. The satisfaction level of public transport users is obtained from several attributes that belong to the Cartesian diagram. The attributes that need improvement are the punctuality of the services, providing a sense of security and comfort and first aid facilities. The user's willingness to pay is Rp.4,000.00 - Rp.5,000.00. Directions for future studies are presented","PeriodicalId":432135,"journal":{"name":"Civil and Environmental Science","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129664923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of Flood Peak Discharge Based on Watershed Shape Factors 基于流域形态因子的洪峰流量分析
Civil and Environmental Science Pub Date : 2022-04-01 DOI: 10.21776/ub.civense.2022.00501.2
M. Muhadi, L. Limantara, T. Prayogo
{"title":"Analysis of Flood Peak Discharge Based on Watershed Shape Factors","authors":"M. Muhadi, L. Limantara, T. Prayogo","doi":"10.21776/ub.civense.2022.00501.2","DOIUrl":"https://doi.org/10.21776/ub.civense.2022.00501.2","url":null,"abstract":"Regression analysis can develop unit hydrograph modeling by approaching the peak discharge (Qp) and time to peak (Tp) parameters. The main aim of this study is to design a model of peak discharge based on watershed shape factors. The watersheds used in this study are Bontojai Watershed, Jonggoa Watershed, Kampili Watershed, Maccini Sombala Watershed, and Jenelata Watershed, which have slopes criteria below 10% and have complete recorded data of Automatic Water Level Recorder (AWLR) and Automatic Rainfall Recorder (ARR). The validation results of corrected peak discharge data produce Root Mean Squared Error (RMSE). Then, the peak discharge model was conducted by regression analysis and validated with observed unit hydrographs. The results of this study indicate that the coefficient of determination R2 is 0.963. It means that the independent variable (x), namely the area of the watershed, the length of the main river, and the shape factor of the watershed, influences the peak discharge (Qp) of 96.3%","PeriodicalId":432135,"journal":{"name":"Civil and Environmental Science","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126972032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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