bluuebunny/crossref_metadata_2025_split huggingface dataset:
Geographic Information System (GIS-T) database design for transportation safety system (case study: spatial database for road transportation system in Indonesia)
Authors: Istiyanto Bambang , Unzilatirrizqi D Yan El Rizal , Dewantoro Mouli De Rizka , Ahmad Rahmat 
Published: December 2022

Abstract
This study aimed to develop a spatial database design on transportation safety system. Spatial databases is a fundamental factor that is very important in the utilization of GIS for transportation, so it is important that a good preparation of spatial databases. Preparation of spatial database will be effective if tailored to the needs. Factors affecting transportation safety is different from one region to another. Factors that affect transportation safety system in an area can be influenced by the transportation system infrastructure in the area. Database design for transportation safety in this study is expected to be a model of the spatial database according to the highway transportation system in a small town in Indonesia. Characteristics of the transport system in Indonesia was largely dominated by private vehicles and less of public transport. Spatial analysis has the advantage to combine data and analyze various factors based on spatial location. Spatial data that can be used to support the analysis include the basic data, thematic data path, data that can be supporting the highway transportation system. Spatial data and GIS - T can be used as an analysis tool and alternative approach to improve road transport safety.
Early Age of Volume Weight, Indirect Tensile Strength and Tensile Elastic Modulus of Foam Concrete Containing Blended Cement
Authors: Mansyur  , Tjaronge M W , Irmawaty R , Amiruddin A A 
Published: December 2022

Abstract
Portland composite cement is a type of blended cement produced by the Indonesian cement factories where fly ash as one of the ingredient and the production is based on efforts to reduce CO2 emissions in the cement production process. This research is part of the sustainability infrastructure development which is carried out through the use of Portland composite cement as a cementitious material in the manufacture of foam concrete. The purpose of this paper was to contribute to the understanding of the early age volume weight, indirect tensile strength and tensile elastic modulus of the hardened foam concrete. In this study, two mix designs of foam to mortar ratio of 32.53%: 67.47% and 55.41%: 44.59%, by volume were used to produce foam concrete. The test results showed a good compatibility of Portland composite cement-superplasticizer based mortar in combination with foam can be achieved to determine the foam concrete slurry stability and can thus form hardened foam concrete. By using foam to mortar ratio of 32.53%: 67.47%, volume weight, indirect tensile strength and tensile elastic modulus achieved were 1508.3 kg/m3, 0.83 MPa and 207.5 MPa at three days, and 1476.9 kg/m3, 0.89 MPa and 254.3 MPa at 7 days, respectively. Tensile strength of foam concrete with foam content of 55.41%: 44.59% at 3 days and 7 days were 0.37 MPa and 0.46 MPa, respectively. The foam to mortar rasio of 55.41%: 44.59% produced foam concrete with tensile elastic modulus of 137 MPa and 200 MPa, at 3 days and 7 days respectively.
IDSL for Tsunami Early Warning System in Indonesia
Authors: Husrin S , Annunziato A , Prasetya G S , Hidayat R 
Published: December 2022

Abstract
The Inexpensive Device for Sea Level measurement (IDSL) has been implemented for tsunami monitoring and early warning in the Mediterranean regions. Following the events of 2018 Palu and the Sunda Strait Tsunami, The MMAF, JRC-EC, IATsI, and BMKG worked together and installed eight (8) units of IDSL in Indonesia starting from January 2019. This paper discusses the concept of IDSL, the installation and the operation in the last 18 months and its potential use as tsunami early warning system in Indonesia. We concluded that IDSL and other similar systems could strengthen the existing TEWS in Indonesia considering its reliability in delivering the alerts in real-time with the characteristics of short distance tsunami and the presence of small islands, low costs in installation and maintenance that may guarantee the sustainability of the system.
The Strength of Reinforced Concrete Slabs of 30% Candlenut Shell Variation Using Destructive Testing Methods
Authors: Nasruddin  , Mushar P. 
Published: December 2022

Abstract
The compressive strength of concrete is one of the parameters used to control the quality of concrete. Concrete compressive strength testing method which is considered the highest level of reliability is a destructive testing method using a compression testing equipment. Based on the case, a testing tool is needed to measure or determine the compressive strength of concrete known as the Universal Testing Machine (UTM). Experimental research is conducted with a scientific approach using several of variables. The purpose of this research is to get the compressive strength value of concrete slabs variation of 30% candlenut shells. From the test results using a UTM so that it can be obtained the quality of reinforced concrete. The research variable are the 28 days age of concrete and the curing methods (wet curing and dry curing). The number of specimens of reinforced concrete slabs is 4 pieces measuring 50cm x 25cm x 12cm. The results of the study are the compressive strength of concrete slabs 30% variation of candlenut shells using UTM shows that the strength of reinforced concrete slabs reaches 75 MPa in wet curing and 59 MPa in dry curing or equivalent to the quality of K400 to K500 concrete at 28 days. The results also show the compressive strength of concrete in wet curing is higher than in dry curing.
Preference of Urban Commuters on Implementation of Rail-based Public Transportation Plan in Mamminasata Area
Authors: Sabil M I , Ramli M I , Adisasmita S A 
Published: December 2022

Abstract
The density of population and the increasing needs of Makassar city will affect the movement of society to fulfill their necessary. Public acceptance on rail transportation is one of the important keys in implementing sustainable transportation policies in the Mamminasata area. The aim of this study is to evaluate public acceptance regarding the planned public transportation. The survey in this study used the methods of questionnaire and interview that included the South Sulawesi Provincial Office with a total of 1002 civil servants who were also the users of commuters, then the data analysis was carried out by conduct the research about characteristics of the respondent’s acceptance on rail-based transportation. The method of data collection was conducted with respondent chooses their perspective and their acceptance with likert scale. The results of this study show the perception of acceptance is the main factor that affect the policy of implementing rail-based public transportation in the Mamminasata area.
Risk management in the regency road improvement projects in Buleleng regency
Authors: Dewi A A D P , Sudarsana D K , Mulyaputra I G B W 
Published: December 2022

Abstract
The largest district in Bali Province is Buleleng Regency with an area of approximately 24.25 percent of the total area of Bali Province. To facilitate the activities of the Buleleng community in all fields, adequate road construction is needed. The Public Works and Spatial Planning Office of Buleleng Regency carries out a road improvement project every year to improve road conditions from an unstable condition to a stable condition. The implementation of road improvement projects can cause various risks so it is necessary to conduct research for risk management with the stages of identifying risks, formulating dominant risks, formulating risk mitigation actions, determining risk ownership and analyzing the impact of dominant risks on potential cost and time losses in district road improvement projects in Buleleng Regency. The research method was carried out by compiling and distributing questionnaires, brainstorming, and focus group discussions. Respondents were selected using a purposive sampling method, namely the respondent determination method with the consideration that the respondent had the competence and experience in the district road improvement project in Buleleng Regency. The number of risks identified in this study were 40 risks with 31 (77.50%) risk being the dominant risk. The results of the formulation of mitigation actions against the dominant risk obtained 47 mitigation actions. Ownership of the most dominant risk (28 dominant risks) is the responsibility of the contractor. The risk with the dominant category is for example poor material quality that affects the quality of work with mitigation measures, namely ensuring that the material sent by the supplier matches the sample material that meets the required specifications with the risk ownership being the contractor. The impact of the dominant risk on the potential cost increase is IDR. 707.569.114,60 and the potential for additional time is 11 days.
Behavior of Building Structure Subject to Tsunami Load
Authors: Pringgana Gede , Budiwati Ida Ayu Made , Yustinaputri Putu Ayu Ratih 
Published: December 2022

Abstract
This study aims to analyze of the structural behavior of two-story building under the combination of earthquake forces and tsunami hydrodynamic forces, with model variations included the percentage of wall’s opening and thickness. The 3-D modeling of two-story buildings were conducted in this study using software SAP 2000; the first model consisted of wall panels with the percentage of openings of 0% (PD0), 25% (PD25), 35% (PD35), and 50% (PD50), while the second model included buildings with 150 mm and 250 mm wall thickness. In addition, the hydrodynamic force predicted by numerical simulations based on Smoothed Particle Hydrodynamic (SPH) was compared to that of predicted by semi-empirical design equations. The results of the wall panel modeling show that the greater the percentage of wall’s opening, the smaller the hydrodynamic load that can be carried out by the structure and hence, the lesser the stresses on the wall. The increase of building’s wall thickness from 150 mm to 250 mm under the combination of earthquake and tsunami loads decreased the stress on walls, moments and transverse forces. Conversely, the tensile and shear stresses on the walls were increased due to the combination of tsunami loads. The comparison of hydrodynamic force shows that the maximum force predicted by SPH was generally higher to that of predicted by the semi-empirical design equations.
Domestic Wastewater Treatment with Multi Soil Layering Method with Variations of Hydraulic Loading Rate (HLT) And Organic Materials at Anaerobic Conditions
Authors: Zubair A , Ibrahim R , Mangarengi N A P , Yuswanda T D B , Abdullah N O 
Published: December 2022

Abstract
Domestic wastewater is the largest producer of wastewater in Indonesia which comes from the remnants of household activities. Hazardous substances such as Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), Oil and Fat contained in wastewater can cause health problems for humans. In this study, domestic waste treatment was carried out using the Multi Soil Layering (MSL) method. The MSL system is a wastewater treatment method that utilizes the ability of soil as the main medium and several other media such as zeolite, gravel, charcoal, and sawdust which are formed in a multilevel brick pattern. The independent variables are the variation of soil mixture with sawdust (M1) and soil mixture with charcoal (M2) and also variations of Hydraulic Loading Rate namely HLR 500 L/m2.day (H1), 750 L/m2.day (H2), 1000 L/m2.day (H3). The characteristics of domestic wastewater include pH 6, BOD 236 mg/L, COD 514 mg/L, TSS 114 mg/L, Oil and Fat 8200 mg/L. The results showed that the best variation in the removal of pollutant levels was a mixture of soil with charcoal (M2) and HLR 500 L/m2.day (H1), with the average efficiency in reducing BOD, COD, TSS, Oil & Fat levels, respectively. 86.39%, 78.29%, 86.56% and 79.60%.
The Compressive Strengh Of Cohesive Soil Stabilized With Microbial Induced Cementation
Authors: Alkadri  , Djamaluddin AR , Harianto T , Arsyad A 
Published: December 2022

Abstract
This research aims to evaluate the physical and mechanical characteristics of soil stablized with microbial induced cementation method. The variation of microbial induced by 4%, 6%, and 8%, while the age variations of bacterial culture of 2, 4, and, 6 days and a curing period of 3,7,14 and 28 days. The properties of the soil studied in this research are as optimum moisture content of 32.19%, dry volume weight (γd) 1.36 gr/cm3, soil density 2.63 gr/cm3, atterberg limit test liquid limit 46.89% plastic limit 31 ,94%, plasticity index 14.96% and shrinkage limit 7.49%. The compressive strength of the soil which was stabilized with 6% solution of Bacillus subtilis bacteria for 4 days found to be optimum 19.96 kg/cm2 at 28 days or an increase of 6 times from the soil was not stabilized with microbial induced 3.02 kg/cm2
Strength Behaviour of Sugarcane Bagasse Ash Treated Sewage Sludge-Soil Mixture
Authors: Kartika S , Asiyanthi L A , Irwan R R , Hidayat A 
Published: December 2022

Abstract
Laboratory tests were conducted on sugarcane bagasse ash treated sewage sludge-soil mixture with 5%, 10% and 30% bagasse ash to assess its strength behaviour. Unconfined compressive strength (UCS) was performed to observed influence of bagasse ash content (BAC), curing time, water content on value of UCS and axial strain. Soil sample were prepared using standard proctor at 60% of optimum water content. Results recorded value of UCS reached peaked at 20% BAC and then dropped by 46% at 30% BAC. Axial strain increased for every additional BAC. Result shown curing period influence UCS, as curing time longer the value of UCS also rose. Other findings of this study were BAC affected maximum dry density (MDD), 5% BAC and 10% BAC improved MDD but 20% BAC and 30% BAC would reduce value UCS. Finally, it could be concluded 20% BAC was the optimum content to get the optimal UCS improvement of sewage sludge-soil.
Identification of Green Lane in its ability to absorb emissions on Main Arterial Street in Makassar City
Authors: Harusi N M R , Aly S H , Mitani Y , Junaid M 
Published: December 2022

Abstract
This study aims to know the number and variation of plant species and to analyze the potential for CO2 absorption from each type of plant in the green lane. The focused green lane is located on the main arterial road with length of 4.2 km, St. Urip Sumoharjo which is known as the longest and most congested road in Makassar City. This study was carried out by surveying and observation the tree species on the road and used image processing to validate the suspect of tree species through App. Meanwhile, the calculation of CO2 absorption is analyzed using the per plant species method by multiplying between the number of existing trees with the absorption capacity per plant species. As a result of the inventory, it was found that there were thirty-eight (38) tree species with a total of 2,587 trees. The dominant tree species were Bougainvillea glabra with 693 trees (26.8%), and Tabebuia chrysantha with 339 trees (13.1%) located in the median side. With the total trees, it has the capacity to absorb CO2 of about 2,478,996 gr/hour. Additionally, Segment 5 and 6 have a highest CO2 absorption with 1,278,274 gr/hour and 786,879 gr/hour respectively. It was caused by having the dominant typical plant species which are capable of absorbing the highest CO2 concentration, such as Bougainvillea glabra and Samanea saman at 1,643.83 gr/hour.plant and 3,252.1 gr/hour.plant.
CBR laboratory investigation on Lightweight Modular Block (LMB) using recycled dredged soil mixed with EPS
Authors: Marfu’ah N , Harianto T , Muhiddin A B , Irmawaty R 
Published: December 2022

Abstract
Changing material into a lightweight geomaterial such as EPSCS is one of the considerable methods to improve the geotechnical performance in the field. This material is already used in numerous construction projects due to its light characteristics. Lightweight Modular Block or LMB is a type of EPSCS composed of dredged Soil, cement, and Expanded Polystyrene (EPS). The amount of cement composition are 3%, 5%,7% and 9%. Meanwhile, Expanded Polystyrene (EPS) are 0.5% and 0.75%. This paper aims to briefly explain the performance of LMB as road foundation materials, such as subbase and base, through CBR laboratory tests. Based on the data, adding EPS can reduce density by 18% - 29% depending on the chosen mixture. Whereas adding more cement tends to increase the CBR value. All the test results will be analyzed and compared to SNI 03-3438-1994 for its qualification as a road foundation layer.
Shear Strength Behaviour of Sedimentary Soil Stabilized by Fly Ash
Authors: Nur S.H , Nofriana  
Published: December 2022

Abstract
Sedimentary soil is made up of deposits that are the consequence of the weathering of rocks that have already been deposited elsewhere by various natural processes, including water, wind, and others. A location with sedimentary soil is the Bili-bili Dam in the South Sulawesi Province's Gowa Regency. Sedimentary soil at this location is quite abundant and has not been used in general, so it can be investigated for its use, namely stability against the influence of external forces on the carrying capacity of the sedimentary soil. Stabilizing the soil is one approach to boost its bearing capacity, particularly for sedimentary soil. The original soil is categorized as group A-4, or silty soil, according to the AASHTO classification system and as ML, or silt with low plasticity, according to the USCS classification system, based on the findings of physical characteristics testing. It has been demonstrated that the soil's cohesiveness and shear angle increase with the addition of fly ash. It has been demonstrated that adding fly ash stabilizing material to the sedimentary soil of the Bili-bili Dam and allowing it to cure increased the cohesion value from the initial soil cohesion value of 0.72 kg/cm2 to 1.70 kg/cm2 after 28 days. With a 20% fly ash mixture and a curing period of 28 days, the shear angle value increased from the initial soil shear angle value of 22 to 31; this is a 40% increase in the shear angle value.
Evaluation of Unconfined Compression Strength Value of Expansive Soil Stabilized Fly Ash
Authors: Nur S.H , Djamaluddin R , Nurafifa. Y S 
Published: December 2022

Abstract
Expansive soils are referred to as swelling soils as a result of changes or modifications in the water content in the soil. This study aims to determine how the addition of fly ash affects the value of the expansive soil's free compressive strength as well as how the curing period affects the value of the expansive soil's free compressive strength that has been stabilized with fly ash. Variations of the addition of fly ash were made by 5%, 10%, 20%, and 25% with curing times of 0 days, 7 days, 14 days, and 28 days to see how adding fly ash affected the Free Compressive Strength Value. The value of the Free Compressive Strength increases as fly ash addition is increased in percentage and curing time is extended. The variation of the addition of 10% fly ash with a curing period of 28 days of 31,622 kg/cm2 and 25% with a curing period of 0 days, 7 days, 14 days, and 28 days produced the best compressive strength value. The value of the Free Compressive Strength increases as fly ash addition is increased in percentage and curing time is extended. The variation of the addition of 10% fly ash with a curing period of 28 days of 31,622 kg/cm2 and 25% with a curing period of 0 days, 7 days, 14 days, and 28 days produced the best compressive strength value. The value of the Free Compressive Strength increases as fly ash addition is increased in percentage and curing time is extended. The variant of 10% fly ash addition with a 28-day curing period produced the maximum compressive strength value of 31,622 kg/cm2.
The Effectiveness of Tidal Power Plant Model
Authors: Rusvan A A , Maricar F , Thaha M A , Paotonan C 
Published: December 2022

Abstract
Since tidal energy is renewable and the Indonesian archipelago has a beach length of roughly 80,000 km, the country has a very large potential for tidal energy. The possibility for utilizing tidal energy is highly open because there are several places in Indonesia where the high tide and low tide are quite different from one another. When calculating the quantity of tidal energy based on the greatest and lowest sea level readings, tides are a crucial factor. The moon and sun’s gravitational pull are what bring about the tides. The structural characteristics of pristine beaches, coastal waterways, such as bays and narrow straits, and the depth near the shore are additional local elements that affect.. The results of this study use the assumption that the tidal height difference that occurs is 5 m for 1 tidal cycle (12 hours) or with a single daily tidal type model (Diurnal Tide) or in one day there is one high tide and one low tide accompanied by Reservoir length 150 m with a reservoir width variation of 60 m produces a maximum discharge of 12.50 m3/s with a maximum energy potential of 439.92 kWh, a variation in the width of a pool of 80 m produces a maximum discharge of 16.67 m3/s with a maximum energy potential of 586.56 kWh and a variation of the width of the reservoir 100m produces a maximum discharge. 20.83 m3/s with a maximum energy potential of 733.20 kWh. The results above make it abundantly evident that the potential energy produced increases with the size of the pond formed, the magnitude of the tidal height difference that occurs, and the duration of the production processes. In order to maximize tidal energy as a potential alternative energy source, it may therefore be inferred that tidal energy consumption can be used as a reference in future development planning. This article is a part of ongoing research on single-pond dual cycle systems for tidal energy empowerment.
Numerical Modelling of Shoreline changes of Galesong, Takalar’s coast
Authors: Karamma R , Hatta M P , Mustari AS , Manda SP , Ilda A. , Ihsan M 
Published: December 2022

Abstract
Morphological changes of Talakar’s coastline covering three administrative subdistrict has been modelled numerically in terms of sedimentation build up. Shoreline changes is one of the dynamic processes as parts of natural processes for coastline to reach their subsequent equilibrium resulting in bathimetrical alteration of coastal bed. Sedimentation modeling simulation has been conducted for the coastlines of North Galesong, Galesong, and South Galesong subdistricts. As the location is physically affected by the oceanoghrapic dynamics of Makassar Strait, Flores Sea as well as the river hydraulics of Jeneberang and Pappa rivers’ estuaries. Shoreline accretion and abbrasion are distincted by data analysis. Sedimentation model shows shallowing process (pendangkalan) of 0.0136m to 0.05977m with 0.000006 m/day to 0.013 m/day growth near shorelines of North Galesong, 0.025202m to 0.1194 deepening and 0.02526m to 0.16736m shallowing with 0,0013 m/day to 0,013 m/day growth near shorelines of Galesong, and 0.014148 m to 0.11948 deepening and 0.01351 m - 0.16736 shallowing with 0.01m/day to 0.026 m/day growth near shorelines of South Galesong.