Civil and Environmental Science Journal (CIVENSE - Fakultas Teknik Universitas Brawijaya)
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Cafe market share using satellite image data and Google Database in Malang City
Get PDFCafes 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
The Impact of the Age of the Driver of Freight Transport on the probability of being involved in a Traffic Accident (Case Study in Krian – Taman Sidoarjo Road)
Get PDFTraffic accident is one of the traffic problems that caused deaths, injuries and material loses. The high number of traffic accident is an indicator of the low level of road traffic safety. Krian – Taman Sidoarjo road has become one of black site area. According to data from the Sidoarjo Resort Police, there have been 66 traffic accidents during 2015 to 2020. The majority of accidents involve freight transport compared to passenger transport. Therefore, it is necessary to conduct research to find out the factors of freight transport drivers that affect the possibility of traffic accidents in Krian – Taman Sidoarjo road. Methods of data collection using questionnaires to drivers of freight transportation. While the analystical method used is descriptive analysis and logistic regression using data from questionnaires. The result of research shows that the older the driver, the higher the probability of being involved in a traffic accident
Risk Mitigation of Toll Road Development (Case Study of Trans Sumatera Toll Road)
Get PDFTo achieve the level of infrastructure performance as a middle-income country by 2025, as well as to catch up with the backwardness of infrastructure, specifically for toll road projects, the government targets that by 2021 Indonesia will have 5200 km of toll roads. Hence, there is a significant increase of 3000 km. The government, especially in the development of toll road infrastructure, gives a more significant portion to the purely private sector, BUMN, and Public Private Partnership - Government Business Entity Cooperation. Risk analysis is carried out by structuring risk using the RBS (Risk Breakdown Structure) method and multiplying the impact value and frequency to get the risk level value for each risk factor. The results of the analysis obtained from RBS are further analyzed based on the practical experience of project implementers to determine their actions in overcoming risks, then analyzed and discussed again using a table comparing the amount of risk, comparison of the level of importance of risk (importance level) and the level of risk based on the payment system. The results obtained from this study are the types of risk and the level of risk at each stage of the project
Bearing Capacity of Large Drilled Shafts Fully Embeded in Claystone and Sandstone Layers
Get PDFThis paper focuses on analyzing the bearing capacity of large diameter drilled shafts that are fully embedded in the claystone and sandstone layers. The foundations used are the drilled shafts for the Pulau Balang bridge pylons built across the Balikpapan bay. Three bored pile foundations with a planned diameter of 2 meters by 60 meters were used. The bearing capacity of the foundation in the field was carried out using the Osterberg cell test. The bearing capacity of the upper side of the foundation is 32.77, 27.26, and 114.46 MN, and the lower parts are 26.98, 27.16, and 50.25 MN, respectively. The results show that the method closest to the upper part of the OC test is the method suggested by Kulhawy and Phoon, with a value of C = 0.5. As for the lower part, the closest approach is the combination of the Kulhawy and Phoon and the Rowe and Armitage methods. The combinations of methods that approximate the total bearing capacity of the field are the Kulhawy and Phoon (1993) and Rowe and Armitage (1987) methods for the dominant claystone layer, and the O\u27Neil and Reese (1993) and Rowe and Armitage (1987) methods for the main sandstone layer
Farmers\u27 Social Capital in Supporting Sustainable Agriculture: The Case of Pujon Kidul Tourism Village, Indonesia
Get PDFPujon Kidul Village is a village with the potential of the main agricultural sector which has been designated and developed into a Pujon Kidul Tourism Village. Tourism villages that are developed need support within the village itself to maintain sustainability. Tourist villages that do not pay attention to the sustainability aspect will threaten the social and economic conditions of the community, especially the farming community, who make up most rural communities. Therefore, it is necessary to support sustainable agriculture that can balance sustainable tourism. The most important capital that must be prepared to achieve sustainable agriculture is social capital from the farming community. Social capital is the main force to empower communities in development, this study examines how the conditions and factors are forming the social capital of the farming community of Pujon Kidul tourism village. This study\u27s main data collection method used a questionnaire aimed at 221 respondents. Then the questionnaire results will be described and analyzed by CFA analysis. Overall, the social capital of the farming community is in good condition, and this is a potential that can be used in determining the right approach to the farming community of Pujon Kidul Tourism Village in supporting sustainable agricultur
Impact on The Existence of New Toll Road Section Due to Mode Choice Between Transportation Mode Using Modal Split Methods (Case Study: Tulungagung-Surabaya)
Get PDFThe 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
Analysis of Changes in Land Use Patterns for Erosion and Sediment Prediction
Get PDFThe Amprong watershed has an area of ± 252.94 km². The increasing population causes the demand for land to increase. GIS analyzes changes with the factors of change that occur. The purpose of the study was to determine the pattern of land-use change in the Amprong watershed on erosion and sedimentation. Idrisi Selva for use change analysis and SWAT for erosion and sediment. From the results of land cover modeling, it can be seen that the trend of forest land cover change from 2008, 2013, and 2018 continued to decline with an average of 11.69% of land cover in 2008. In contrast to settlements, it always increased by an average of 9.29%. Meanwhile, land cover changes in 2018 and 2028 decreased by 21.40%, plantations decreased by 4.33%, open land decreased by 42.11%, settlements increased by 46.47%, rice fields increased by 0.60%, and shrubs increased by 4.63%. The Kappa Index of Agreement validation shows a K standard value of 0.85 which means that the modeling is scientifically accepted. The results of hydrological modeling in 2018 were 1,021,237.49 tons/ha/year, erosion was 752,973.95 tons/ha/year and in 2028 it was 1,886,689.64 tons/ha/year, erosion was 1,069,631.09 tons/year
Factors Affecting Commuters\u27 Intentions in Using Park and Ride (P&R) Facilities Based on Theory of Planned Behavior
Get PDFPark 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\u27 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\u27 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
Landslide Threat Analysis and Slope Reinforcement Method with Sheet Pile on Singaraja City Boundary Road – Mengwitani Km 37+900 Right
Get PDFThe trigger factor for landslides is due to high rainfall intensity and long duration and the drainage system on the slopes is not good, causing the soil to become saturated. The Singaraja–Mengwitani City road section every rainy season always occurs landslides due to the geometry of the road adjacent to the slope because it is in a hilly area, as well as a drainage system that does not function during the rainy season. Based on the results of the previous soil investigation, the road section is a type of silty clay due to weathering of the ancient Buyan-Beratan volcanic rocks. The research was conducted through a field investigation with 2 drill points in a depth of 30 m, and slope stability analysis with the help of Geoslope software obtained. The value of the existing slope safety factor was 0.939, while at the time of moderate rain for 6 hours it was obtained SF<0.332, this condition indicates that the slope will fail so that it needs to be strengthened. The reinforcement is carried out with steel sheet piles is 4.49 m with a total length of sheet piles used is 6.49 ~ 7 m, based on the results of the analysis after being given reinforcement of steel sheet piles the safety factor value is 1.674, while when it rains it is moderate for 6 hours at 1,210, the slope is declared stable/safe because SF>1.0
Development Zoning of Bindu River Ecotourism based on Eco Culture
Get PDFBindu River Ecotourism is a tourist attraction that has natural potential as a place of recreation in the Denpasar City area. Apart from the potential offered by Bindu River Ecotourism, there are still problems that exist in Bindu River Ecotourism including river water which has a lot of sediment, the lack of public awareness to care about the surrounding environment, and the lack of exposure by the public makes only the surrounding community aware of it. If zoning is not carried out in its development, the natural potential of the Bindu River Ecotourism area that has been arranged can be reduced, for this reason, zoning is needed in its development to determine areas in the Bindu River Ecotourism area that are in accordance with the land use and development potential. Based on the delineation and the existing potential, the Bindu River Ecotourism area is divided into a conservation zone and a recreation zone. For the conservation zone, it can be developed into several more zones in the upstream part, it can be developed into a zone for the development of the function of protecting water resources, a zone for the development of the function of protecting flora and fauna as well as limited recreational functions. While the recreation zone can also be developed into several more zones. The upstream recreation zone can be developed into a recreation function development zone and the downstream recreation zone can be developed into an educational function development zone