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River 2024年第1期3卷 8-23页

作者： Gerald Augusto Corzo Perez Diego Ivan Sanchez Tapiero Manuel Antonio Contreras Martínez Chris Zevenbergen IHE Delft Institute for Water Education Hydroinformatics and Digital InnovationDelftThe Netherlands Master in Environmental Engineering Civil Engineering ProgramFaculty of Engineering and ArchitectureUniversity of PamplonaPamplonaColombia Faculty of Civil Engineering and Geosciences Delft University of TechnologyDelftThe Netherlands

The rapid growth of impervious areas in urban basins worldwide has increased the number of impermeable surfaces in cities,leading to severe flooding and significant economic losses for *** trend highlights the urgent need for methodologies that assess flood hazards and specifically address the direct impact on pedestrians,which is often overlooked in traditional flood hazard *** study aims to evaluate a methodology for assessing the risk to pedestrians from hydrodynamic forces during urban floods,with a specific focus on Cúcuta,*** methodology couples research outcomes from other studies on the impact of floodwaters on individuals of different ages and sizes with 1D/2D hydrological *** computational algorithms for image recognition were used to measure water levels at 5-s intervals on November 6,2020,using drones for digital elevation model data *** Cúcuta,where flood risk is high and drainage infrastructure is limited,the PCSWMM(Computer-based Urban Stormwater Management Model)was calibrated and validated to simulate extreme flood *** model incorporated urban infrastructure details and geomorphological parameters of Cúcuta's urban *** return periods(5,10,50,100),with extreme rainfall of 3 h,were used to estimate the variability of the risk *** output of the model was analyzed,and an integrated and time-varying comparison of the results was *** show that the regions of high-water depth and high velocity could vary significantly along the duration of the different extreme ***,from 5 to 100 years return period,the percentage of area at risk increased from 9.6%to 16.6%.The pedestrian sensitivity appears much higher than the increase in velocities or water depth *** study identified medium to high-risk locations,which are dynamic in *** can conclude dynamics are spatiotemporal,and the added information layer of pedestrians brings vulnerability information that is a

关键词： hazard and risk mapping pedestrian risk urban flood

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Road Traffic Safety Analysis at Unsignalized Intersection of Rural Road in Yogyakarta 8

Road Traffic Safety Analysis at Unsignalized Intersection of...

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8th International Conference on engineering and Applied Science, ICEAT 2024

作者： Mahmudah, N. Pratama, W.A. Aziz, F. Ihza, Z.M. Karim, M.A. Master Program of Civil Engineering Universitas Muhammadiyah Yogyakarta Bantul Indonesia

Based on accident data provided by the National Police of Yogyakarta, the Bantul - Srandakan road segment has been identified as the most accident-prone area in Bantul Regency. Therefore, this study aims to mapping blackspot areas, identifying traffic conflict patterns, and analysing the severity of traffic conflicts employing Traffic Conflict Technique (TCT). The stages of study involved secondary data collection, accident ranking analysis using the Accident Equivalent Number (AEN) method, field surveys to obtain primary data, and TCT analysis to assess potential risks and conflicts at key intersections. The results highlighted that blackspot areas are primarily located along the Bantul - Srandakan road segment, particularly at unsignalized intersections. The traffic conflict analysis revealed a high incidence of serious conflicts, with motorcycles being the most vulnerable road users. The severity of these conflicts is strongly influenced by Time to Collision (TTC), with shorter TTC values driven by higher vehicle speeds, contributing to more dangerous scenarios. It is most probably as the main cause of death occur on the road segment. © Published under licence by IOP Publishing Ltd.

关键词： Highway accidents

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The Tamblang Dam break analysis using HEC-RAS 5.0.7 and PenRis hazard classification in Indonesia

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Arabian Journal of Geosciences 2023年第6期16卷 1-11页

作者： Yekti, Mawiti Infantri Adityananta, I Kade Edwin Baskara Pariartha, I Putu Gustave Suryantara Program Study Master of Civil Engineering Faculty of Engineering Udayana University Denpasar Indonesia

Tamblang Dam is one of the dams, north of Bali Island, with a capacity of 7.6 million m3, and the downstream areas are in the form of agricultural land, citizen settlements, schools, offices, and other public facilities for approximately 10 km2. Considering such a downstream and its large capacity, the Tamblang Dam would have a significant damage impact if it is a failure. Therefore, it is necessary to analyze the failure of the Tamblang Dam. The study aims to analyze the areas affected by floods due to the dam’s failures and to measure the damage risk. The failures were simulated using HEC-RAS 5.0.7 with four scenarios, such as overtopping, upper-piping, middle-piping, and bottom-piping. The simulation result showed that the Tamblang Dam’s failure with the overtopping scenario had the worst impact as it has the highest velocity and discharge compared to the other scenarios. The overtopping scenario inundated 355 ha areas along the river. Six villages would become the victims, namely, Bengkala, Bila, Menyali, Jagaraga, Bungkulan, and Kubutambahan. Tamblang Dam failures’ danger level was figured out in this research according to the PenRis Hazard Classification of Dams in Indonesia. For this case, it is found that 2527 residents are at immediate risk of flooding caused by the failures. Therefore, following the Danger Classification from the Public Work and Housing Guidelines of Indonesia, it can be stated that the Tamblang Dam is a 4-class dam with an extremely high danger status level.

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DIGITALIZING THE BUILT ENVIRONMENT: THE DIGITAL TWIN OF THE UNIVERSITY CITY-SHARJAH, UAE CASE STUDY 50

DIGITALIZING THE BUILT ENVIRONMENT: THE DIGITAL TWIN OF THE ...

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50th International Conference on Computers and Industrial engineering: Sustainable Digital Transformation, CIE 2023

作者： Bader, A. Alimam, F. Haridy, M. Gawai, R. Ali, M. Ali, T. Mortula, M.D. Abdelfatah, A. Department of Civil Engineering American University of Sharjah Sharjah United Arab Emirates Master of Urban Planning Program American University of Sharjah Sharjah United Arab Emirates

ISBN: (纸本)9781713886952

Digital twin refer to a virtual replica or model of a physical asset, product, or system that is used for the purposes of simulation, analysis, and monitoring. This can include assets such as buildings, transportation systems, and more. Digital twins can be created through the integration of various data types such as sensor data, CAD designs, and other sources. A digital twin of a university campus is a digital replica of the physical university campus that can be used for various purposes, such as planning and design, asset management, operations and maintenance, security, and sustainability. The digital twin can be created using a combination of data from various sources, such as sensors, cameras, Building Information Models (BIM), Drone, and internet of things (IoT) devices. These datasets is then combined to create a real-time, 3D model of the university campus that can be used to simulate various scenarios and assess the impact of changes and improvements. In this project, several datasets were collected including a large-scale topographic map, building heights, and building elevations images. Then, the Digital twin design was carried out using numerous 3D modelling software systems. ArcGIS Pro was used in identifying and highlighting the structures such as building, streets and trees, which were defined as the main features of the project given the scale of the model. Then, City engine was used to produce a digital twin. This was also further developed using Unreal Engine to form a model that is as close to real life as possible. This engine is used in video games to create cities and mimic a real lively environment. Then, a Virtual Reality (VR) model of the University City was created. Such a model allowed for better understanding of the space and enabled for higher level of visualization. © 2023 Computers and Industrial engineering. All rights reserved.

关键词： 3D modeling

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Method Assessment of Bridge Conditions Using Vibration Mode Patterns 5th

Method Assessment of Bridge Conditions Using Vibration Mode ...

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5th International Conference on Sustainable civil engineering Structures and Construction Materials, SCESCM 2020

作者： Sukamta Billahi, Bagus Acung Widyanto, Susilo Adi Lie, Han Ay Department of Civil Engineering Diponegoro University Semarang Indonesia Master Program in Civil Engineering Diponegoro University Semarang Indonesia Department of Mechanical Engineering Diponegoro University Semarang Indonesia

ISBN: (纸本)9789811679230

The current bridge structure maintenance method is done by visual observation only, this often has limitations and the results obtained are less accurate. This research was conducted to obtain a vibratory mode data base which will be used as a basis for compiling the failure patterns of the bridge structure. Vibration mode measurements are carried out on the prototype and the bridge model using an accelerometer sensor mounted on the bridge structure. Accelerometer installed at several points to get variations in the vibrate mode. Dynamic load frequency variations are given to get vibrational mode variations. The results of the vibration mode measurement analysis show the similarity between the prototype and the model, so that the bridge model can be used to study structural failure patterns. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Dynamic loads

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Development Experimental Investigations of Truss Bridge Model for Vibration-Based Structural Health Monitoring 5th

Development Experimental Investigations of Truss Bridge Mode...

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5th International Conference on Sustainable civil engineering Structures and Construction Materials, SCESCM 2020

作者： Sukamta Alfiannur, Angga Widyanto, Susilo Adi Lie, Han Ay Department of Civil Engineering Diponegoro University Semarang Indonesia Master Program in Civil Engineering Diponegoro University Semarang Indonesia Department of Mechanical Engineering Diponegoro University Semarang Indonesia

ISBN: (纸本)9789811679230

In recent years the need for Structural Health Monitoring (SHM) has become increasingly important. Given current technological developments, a visual inspection can no longer be a reference due to inaccurate accuracy levels. In this case, there is a need for an early warning in detecting fast and accurate damage compared to visual inspection. This study proposes a vibration-based structural health monitoring analytical framework by introducing a modal analysis approach based on the bridges structural response. The test begins with making a small-scale model of a steel frame type bridge using the similarity model theory to project a prototype bridge. In this research, a damage simulation is given to the model to project damage to the structure. Static and dynamic tests are carrying to obtain the response characteristics of the structure. The assessment has delayed consequences exhibit that the variety of the supported discharge shows that contrasts look like the bend of the predominant recurrence that influences the FFT bend. Output values in natural frequency, mode shapes, and capital damping ratios were adopted as damage indicators. As a comparison, we are testing the model using FE simulation with a tolerance level of 10%. This research is using to build an SHM database system of the existing bridge structure model. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Modal analysis

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Identification of Extreme Precipitation Changes Due to Climate Change in Indonesia 3rd

Identification of Extreme Precipitation Changes Due to Clima...

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3rd International Conference on Radioscience, Equatorial Atmospheric Science and Environment, INCREASE 2023

作者： Aminah, Siti Riawan, Edi Syahputra, Muhammad Ridho Kuntoro, Arno Adi Master Program in Water Resource Management Faculty of Civil and Environmental Engineering Bandung Institute of Technology Bandung Indonesia Atmospheric Sciences Research Group Faculty of Earth Science and Technology Bandung Institute of Technology Bandung Indonesia Water Resources Engineering Research Group Faculty of Civil and Environmental Engineering Bandung Institute of Technology Bandung Indonesia

ISBN: (纸本)9789819707393

This study uses Global Precipitation Measurement (GPM) and Coupled Model Intercomparison Project Phase 6 (CMIP6) precipitation data to identify extreme precipitation intensity and frequency changes in Indonesia. Extreme precipitation calculations were performed using the Gumbel distribution and return period fitted to annual maxima data. Extreme precipitation and frequency of extreme events were compared between the historical period and the near-future period (2026–2055) and the far-future period (2070–2099) to identify changes. The results showed that there were changes in extreme precipitation in Indonesia both in intensity and frequency of occurrence. Extreme precipitation with a 5-year return period in Indonesia generally has a change value in the range of − 5 to + 25% with most areas likely to increase. The increased value reaches + 20% in the near-future period and + 40% in the far-future period. For the frequency of extreme precipitation above the 5-year return period in Indonesia, the change value is generally in the range of − 40 to + 120% with most areas likely to increase. The increased value reaches + 160% in the near-future period and + 200% in the far-future period. In the higher emission scenario (SSP5-8.5), the areas with higher values of increase will expand both in the change in intensity and frequency of occurrence. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Climate change

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Relationship between drought and soil erosion based on the normalized differential water index(NDWI)and revised universal soil loss equation(RUSLE)model

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Regional Sustainability 2024年第4期5卷 133-144页

作者： Muhammad RENDANA Wan Mohd Razi IDRIS Febrinasti ALIA Supli Effendi RAHIM Muhammad YAMIN Muhammad IZZUDIN Department of Chemical Engineering Faculty of EngineeringUniversitas SriwijayaIndralaya30662Indonesia Master Program of Environmental Management Graduate SchoolUniversitas SriwijayaPalembang30139Indonesia Department of Earth Sciences and Environment Faculty of Science and TechnologyUniversiti Kebangsaan MalaysiaBangi43600Malaysia Department of Civil Engineering Faculty of EngineeringUniversitas SriwijayaIndralaya30662Indonesia Master Program of Agricultural Sciences Graduate Study ProgramUniversitas Muhammadiyah PalembangPalembang30263Indonesia Department of Agribusiness Faculty of AgricultureUniversitas SriwijayaIndralaya30662Indonesia Department of Sociology Faculty of Social and Political SciencesUniversitas SriwijayaIndralaya30662Indonesia

The Langat River Basin in Malaysia is vulnerable to soil erosion risks because of its exposure to intensive land use activities and its topography,which primarily consists of steep slopes and mountainous ***,climate change frequently exposes this basin to drought,which negatively affects soil and water ***,recent studies have rarely shown how soil reacts to drought,such as soil ***,the purpose of this study is to evaluate the relationship between drought and soil erosion in the Langat River *** analyzed drought indices using Landsat 8 satellite images in November 2021,and created the normalized differential water index(NDWI)via Landsat 8 data to produce a drought *** used the revised universal soil loss equation(RUSLE)model to predict soil *** verified an association between the NDWI and soil erosion data using a correlation *** results revealed that the southern and northern regions of the study area experienced drought *** predicted an average annual soil erosion of approximately 58.11 t/(hm^(2)·a).Analysis of the association between the NDWI and soil erosion revealed a strong positive correlation,with a Pearson correlation coefficient of *** assumed that the slope length and steepness factor was the primary contributor to soil erosion in the study *** a result,these findings can help authorities plan effective measures to reduce the impacts of drought and soil erosion in the future.

关键词： Drought Soil erosion Normalized differential water index(NDWI) Revised universal soil loss equation(RUSLE) Langat River Basin

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Analytical Hierarchy Process (AHP) to Determine the Sustainable Drainage System Used for Flood Management in Central Karanganyar Regency 7

Analytical Hierarchy Process (AHP) to Determine the Sustaina...

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7th International Conference on engineering, Technology, and Industrial Application, ICETIA 2020

作者： Kurnianingsih, O. Solikin, Mochamad Pudyastuti, P. Sunarjono, S. Hidayati, N. Civil Engineering Master Program Faculty of Engineering Universitas Muhammadiyah Surakarta Indonesia

A sustainable drainage system is one of the right methods in dealing with floods in cities, including in Karanganyar. The parameters of technology selection problems planned with the Analytic Hierarchy Process (AHP) are technical, economic, environmental, social/cultural, and technology: infiltration wells with drainage channels, rainwater harvesting with drainage channels, and dry swale. Rainfall data is used in this research. The area used is planning, budget planning, and AHP method steps with hierarchical compilation, pairwise comparisons, priority values, testing consistency, and data obtained from technology selection questionnaires filled with related institutions. The most influential criteria in the choice drainage system technology are environmental criteria 49%, technical 33%, economy 12%, and social/cultural 5%. The priority technology is rainwater harvesting with drainage channels with a percentage of 37.3%, infiltration wells with drainage channels 35.2%, and dry swale 27.4%. © Published under licence by IOP Publishing Ltd.

关键词： Analytic hierarchy process

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The Effect of Building with Nature Structure on Estuary Mitigation: A Case Study of Muara Beting Beach, Muara Gembong, Indonesia 7th

The Effect of Building with Nature Structure on Estuary Miti...

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7th International Conference on civil engineering and Architecture, ICCEA 2024

作者： Wulandari, Siska Nugroho, Eka Oktariyanto Nugroho, Joko Cahyono, Muhammad Saurena, Alfandias Widyaningtias Asferizal, Ferial Master Program of Water Resource Engineering Faculty of Civil and Environmental Engineering Institut Teknologi Bandung Jl. Ganesha No. 10 Bandung40132 Indonesia Water Resources Engineering Research Group Faculty of Civil and Environmental Engineering Institut Teknologi Bandung Jl. Ganesha No. 10 Bandung40132 Indonesia Ministry of Public Works and Housing Jalan Pattimura 20 Jakarta Indonesia Department of Integrated Water Management Engineering Institut Teknologi Sumatera Lampung Indonesia

ISBN: (纸本)9789819661145

The Muara Beting coastal area on the north coast of Java, Indonesia, faces coastal erosion processes that gradually affect the decrease of mangrove land. That process causes the land to be extremely eroded and become closer to the Citarum River. The seawater intrusion occurs within the decreasing land mangroves. If erosion persists, the increased seawater intrusion might result in the convergence of the pond area with the Citarum River. This study aims to simulate and analyze how the "Building with Nature" building can be applied as a mitigation strategy through Delft3D simulations. Data was collected through field surveys, satellite image analysis, and library observations to evaluate the impact of the proposed solutions. The simulations used bathymetry, sediment characteristics, wind, tide, and river discharge measurements for input data. Apart from simulating natural conditions, several scenarios were also arranged based on the placement of permeable structures combined with the floodway. The best scenario was selected from where cumulative sedimentation and erosion and the cross-sectional depth show best. This study's findings will be intended to assist Muara Beting’s coastal community in reconstructing pond land that has been harmed by coastal erosion, allowing the locals to carry on with their pond-related livelihoods. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Building with Nature Coastal erosion Delft3D Muara Beting sedimentation

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