bluuebunny/crossref_metadata_2025_split huggingface dataset:
Liquefaction potentials analysis of sandy gravel on the sediment deposit of the Serpong formation
Authors: Nur S H , Hafid A , Iswanto E R 
Published: February 2020

Abstract
Experimental Power Reactor Design in Serpong has been completed consisting of 4 (four) buildings, namely reactor buildings, supporting reactors buildings, switchgear buildings, and turbine buildings which are the main building of RDE power plants. Soil testing series has been carried out and delivered a number of data on sediment deposit formation which in its surface area is a sandy gravel soil layer and has the potential for liquefaction. Several analyses were carried out to test the liquefaction potential including surface sediment vulnerability analysis, grain size distribution analysis, liquefaction safety factor analysis, and liquefaction index analysis. The results show the level of vulnerability of the Serpong formation liquefaction in the medium category and there is a zone that has a high potential for liquefaction at DH-16 and DH-17.
Analysis of correlation between urban heat islands (UHI) with land-use using sentinel 2 time-series image in Makassar city
Authors: Rauf S , Pasra M M , Yuliani  
Published: February 2020

Abstract
In this study, to analyze the value of the correlation between Urban Heat Island and land-use variables. Y variable used is temperature and some variables X in the form of land use variants, namely road network area (km2), population density / ha, building area (km2), and image index data from sentinel2 and Landsat 8 time-series images in the form of satellite image index namely the normalized difference vegetation index (NDVI), the Normalized Difference Water Index (NDWI) and Moisture Indices (MI) in Makassar City. The method used in this study is the Pearson correlation coefficient to determine the variables that influence the increase in Urban Heat Island in Makassar City. Based on the results of the correlation analysis obtained, variables that influence Urban Heat Islan are Moisture Indices (MI), which have a significant correlation in increasing Urban Heat Island, where the correlation value between temperature and Moisture Indices (MI) is R = - 0.766. Another variable is the road area, where the correlation value R is - 0.655.
Design principle of evacuation route for the pedestrian during a flood event in Borgo village
Authors: Makalew F P , Mandang D J F 
Published: February 2020

Abstract
Flooding in the riverfront area is a danger for pedestrians without appropriate information and facility during the event. This research aims to analyze the principle design of the evacuation route for the pedestrian in Borgo Village. This village is located in Minahasa regency, North Sulawesi Indonesia. Many experiences of flooding followed by a landslide, Borgo Village has faced many destruction and victims during such an event. Therefore, creating a principle design can help improve access for evacuation for the pedestrian. The method of this research is field study with record area using photos and videos. Interview with the community in the area is conducted to support field data. Potential identification data is used to establish an area of evacuation and safety temporary location during evacuation. The result shows that several factors need to be implemented in the region. Such the factors are access from the river to the temporary evacuation building or area. The other one is the symbol and sign of evacuation that needs to be installed to the location, and the facility for the pedestrian pathway need to be constructed based on the standard design. Lastly, regulation for building setback in the riverfront area need to be applied to improve the city for water flow during flooding and flash flooding. There should be more attention to activity in the area as well as understanding land use for the riverfront and other waterfront areas for future research.
Friendliness of route along the home-school journey for less privileged children in old city zone of Makassar
Authors: Asrun A M , Said I , Rusli N 
Published: February 2020

AbstractThe home-school journey is a part of less privileged children’s daily routine in Makassar. Children’s repetitive engagement with elements of the street environment contributes to their growth and development. This study determines the actual friendliness of route for less privileged children along their homeschool journey that lead them to perceive the street as their play space. Participatory observation and behavior mapping were conducted to 10 less privileged children, aged 9 to 11. Their movement, social play, place of visit and preferred route were elicited during their journey from home to school and back. The site was a neighborhood in the old city zone of Makassar. The data was analysis using GIS heat-map. It is found that less privileged children perceive the home-school journey as a route to reach their school as well as a place space especially coming back from school to home. Utilized and shaped affordances of school to home journey were more than those gained from home to school. Boys practiced a longer journey than girls on their way back from school to home. It means that the geography of less privileged children at urban street generates spatial skill through social play.
Model of logistic transport distribution in the urban area
Authors: Putra A A , Magribi L O M , Sharly T , Ngii E , Sukri A S , Sukri A S , Balaka R , Azikin T , Lawalendo  , Sriyani R , Makmur M 
Published: February 2020

Abstract
Logistics Transportation in supporting Logistics movement in urban areas has very limited space for certain road segments, especially for large trucks and container vehicles. The limited space of movement will determine the effectiveness and efficiency of Logistics transportation itself. Logistics travel from to and from trading locations, finally reaching consumers is not a simple matter, but is influenced by the various chain of movements that affect costs, time, security and safety. The factors that influence the pattern of distribution of freight transport in Kendari City, Types of modes of commercial goods transportation, Road networks and supporting infrastructure, Land use Patterns.
Study of HRS-WC mixture performance using the waste of crude palm oil ash as filler
Authors: Daud  , Rachman R , Tanijaya J 
Published: February 2020

Abstract
Filler has an important role in the HRS-WC mixture besides aggregates and asphalt due to its functions to fill the void in the asphalt mixture so that it could produce more friction resistance and high interlocking aggregate. The use of filler in the mixture is limited in number because too much filler will lead to the stiffer and easily cracked mixture. On the contrary, the lower values could lead to the easily deformed and too flexible mixture. Previous researchers have studied the use of the waste of crude palm oil (CPO) ash as a filler. This research aims to study the performance of the HRS-WC mixture using CPO ash as a filler. The asphalt content used was 5.9%; 6.33%; 6.75%; 7.18% and 7.6%, while the proportion of CPO ash waste is 0%, 25%, 50%, 75% and 100%. The mixture gradation is made using a gap-graded and half gap-graded mixture. The results showed that the stability is higher when 25% of CPO ash proportion is used, but it is decreased again when the proportion is larger than 25%. The use of a small asphalt content will increase the value of VIM. The flow value decreases when 32% of CPO ash proportion is used and increases again over the use of 32%. The use of a large amount of CPO ash filler in the mixture will increase VMA. While the VFB will decrease if the larger amount of CPO ash is used. The immersion index of the mixture can still be maintained even when the use of CPO ash is increased. The use of CPO ash as a substitute for filler in the HRS mixture - WC must be balanced with the increasing of asphalt mixture.
Walkability index of real estate housing in Makassar
Authors: Arifin M , Rasyid A R , Osman W W 
Published: February 2020

Abstract
Makassar is considered a metropolitan city with about 1.469.601 residents. Therefore, there is a need to upgrade quality, especially the basic needs. The desire to make the city world-class should be a motivating factor towards quality improvement. Walkability Index (WI) is used as an indicator for implementing sustainable development of infrastructure in the era of industrial revolution 4.0. This is the reason why the study about the walkability index of Real Estate housing in Makassar was important to be conducted. To be a livable city, Makassar needs to have pedestrian infrastructure bolstering the mobility of its citizens. This study, therefore, was meant to determine the extent of Real Estate housing in Makassar as supported by pedestrian pathways and Walkability Index. Both Quantitative and qualitative methods with spatial analysis and Walkability Index were used. The result showed that only 9 (3%) out of 272 housing had pedestrians while 97 % had no pedestrian. From 9 housing, 5 were considered very good housing, 2 quite good, and 2 worst. The walkability Index had an average score of 54.55, indicating it was good for pedestrians.
A Study on-resistance characteristics and turbulent structure properties of hyper-concentrated sediment-laden flow
Authors: Hendratta L A , Sukarno  , Ohmoto T 
Published: February 2020

Abstract
Sediment laden flows of high density occur in most natural environments in the world. A certain amount of particles in hyper-concentrated sediment-laden flow plays an important role and has a great effect on the behavior of the flow. Significant erosion and siltation associated with hyper-concentrated floods give rise to many problems. Mudflows that contain large concentrations of clay particles suspended in water are considered to have non-Newtonian hydrodynamic properties but remain largely unknown. In this experimental study, the flow field over a square ribs roughness in an open channel was investigated in detail through comparison with clear water flow by using sodium polyacrylate (PSA) solutions that have viscosity characteristics similar to those of hyper-concentrated sediment-laden flow and applying PIV (Particle Image Velocimetry) measurement system to current meters. The experimental results stressed that the total resistance coefficient for the highly viscous PSA solution reached a maximum of 1.76 times the total resistance coefficient in clear water due to the shear-thinning effect of a non-Newtonian fluid.
Development of flood forecasting model and warning systems at Way Ruhu – Ambon
Authors: Marasabessy M , Pallu M S , Lopa R T , Thaha M A 
Published: February 2020

Abstract
Way Ruhu has a river with the slope of the land is steep. The heavy rains that often occur in the city of Ambon resulted in floods and landslides in several places thus to give a big loss to the people in the city of Ambon both the loss of property and lives. This study was conducted with the aim to determine the magnitude and time of flooding in the Way Ruhu watershed, the modeling results will be applied in android so that people can evacuate early because information can be received more quickly and the Government can prepare better mitigation programs. Modeling methods are carried out using 2D software HEC-RAS 5.0.7 which requires hydrological and topographical data as the main inputs. The output from HEC-RAS is a flood map, flood height, and duration of the flood. The results of this study indicate that the time between the upstream river rise and the arrival of floodwater in the downstream is less than one hour, with flood characteristics as high as 1-5 meters and receding within 4 to 11 hours.
Distribution pattern of water salinity analysis in Jeneberang river estuary using ArcGIS
Authors: Bakri B , Sumakin A , Widiasari Y , Ihsan M 
Published: February 2020

Abstract
Interaction between freshwater and saltwater is a natural phenomenon in river estuaries, with no exception for Jeneberang estuary. This interaction will affect the distribution of salinity. Due to the difference in the density of saltwater and freshwater, blending will occur in between the two types of fluids. In another perspective, the existence of a driving factor such as the tidal routines affects the level of salinity. The purpose of this research was to describe the distribution of salinity at Jeneberang River Estuary both on high and low tide conditions. The results show that the salinity in Jeneberang River estuary in high tide conditions is distributed to distance as far as 2.63 km from the mouth of the estuary, while at low tide conditions the distances reach 2.12 km to the upstream. The salinity would decrease in line with the increase of the distance towards the headwaters of the river. The Salinity would also decrease in the same trends with increasing distance towards the surface of the river. While the value of salinity between the high tide and low tide is not too significant at depth of 0.8H. This is caused by the difference in the depth of the River at each point of sampling and a low stream at low tide conditions, so that the salt sediment washed from the sea at high tide did not return at low tide. Based on water classification, the kind of water in the Jeneberang River estuary could be categorized as freshwater to brackish.
Evaluation on sabo dam construction planning Matakabo River at East Seram island
Authors: Malik R , Pallu M S , Thaha M A , Hatta M P 
Published: February 2020

Abstract
The Matakabo River is one of the major rivers in Maluku Province that crosses the Eastern Seram Regency. The Matakabo River is currently used for the Matakabo Irrigation Area through Matakabo Weir, with an area of + 3,050 Ha. Considering the number of tributaries entering the Matakabo River system and the risk of changes in land conversion in upstream, the development of Sabo Dam is seen as crucial for securing the water supply to irrigation as well as functioning as flood control. The location of 6 Sabo Dam is in Wai Sop, Wai Mol, Wai Sol, Wai Bemis, Wai Jana, and Wai Ines areas were based on visuals in the field where these areas are vulnerable to erosion and sedimentation. The calculation of flood discharge uses two methods, namely Nakayasu and ITB. Based on the highest river flow and flood capacity in the Q2: 401.68 m3 / second field which is close to the results of the synthetic discharge calculation from the ITB Method. Evaluation of 6 Sabo Dam with 1 Groundsill in Matakabo based on the calculation of the Van Rijn and Meyer Peter Muller (MPM) method will be able to accommodate sediment beds and suspended load around 1,275,958.63 m3 / year or around 0.581 mm / year. With 6 unit additional Sabo Dam locations (vol: 9,563,750 m3) equipped with groundsill, the estimated useful life of the river will not be disturbed by the sediment for about 7.5 years.
Feasibility evaluation of water supply infrastructure in Luwuk district
Authors: Fatahuddin S , Selintung M , Bakri B 
Published: February 2020

Abstract
Water is an essential factor in determining human needs. Society has increased or not in a city or region can be seen from the availability of clean water that available whenever we need it. Provision and development of clean water is an activity directly related to one of the basic needs of the community. The availability of clean water is a necessity, which, if neglected, will have a significant effect on the sustainability of human life. Clean water infrastructure functions to empower water resources for the community. The availability of adequate and enough clean water infrastructure has a significant influence on clean water services. Luwuk District receives a clean water supply from the PDAM sourced from the water treatment plants (WTP) of Keles and WTP of Mangkio. This study aims to (1) Analyze the existing conditions of the clean water infrastructure of Luwuk District, (2) Evaluate the performance of the clean water infrastructure of Luwuk District. The object of research is the PDAM clean water infrastructure. The results showed that the physical condition and performance of the WTP Keles clean water infrastructure was not good while in Mangkio was quite good. It is necessary to have regular and periodic maintenance of the clean water infrastructure in the two water treatment plants to maintain the continuity of the existing infrastructure and maximize the economic life of the support in supply the freshwater needs of the community. The first section in your paper
Stability of breakwater armour using rock pockets on transition wave
Authors: Rohani I , Thaha M A , Hatta M P , Paotonan C 
Published: February 2020

Abstract
Breakwater, which is one of the coastal protection systems that is often used in Indonesia, has a major component of the armour/protection layer. Breakwater armour on the coast has three possibilities for wave attack, are shallow waves, transition waves, and deep waves. Using rock pockets as armour in transition waves has significant characteristics and influences on the coefficient of damage value. This study aims to obtain the Coefficient of damage breakwater armour using rock pockets in transition wave conditions. This research is experimental with physical tests conducted in the 2-D wave channel at the Laboratory of Marine Engineering, Faculty of Engineering, Hasanuddin University. Making with several waves, and weight of armour configurations. Transition waves are obtained by plotting and eliminating the wave classification graph. The scale model used is 1: 10, with three water depth variations, are 25 cm, 20 cm, and 15 cm. The results showed that coefficient of damage armour at the end (head) of the breakwater for the transition wave for slope device 45˚, coefficient of damage value is 3.92, at the slope device 60˚ Coefficient of damage value is 4.52.
Stratification model of seawater mass structure at the estuaries of Jeneberang River and Tallo River and the influences to current pattern in Makassar coastal areas
Authors: Karamma R , Pallu M S , Thaha M A , Hatta M P 
Published: February 2020

Abstract
The influences of periodically continuous tides and river discharges flowing from upstream will be responded by basic morphological form and geometry of estuaries and resulting in current pattern in estuaries. The current induced by tidal effect creates turbulences in estuaries which influence the change of configuration of stratification of seawater mass structure and suspended sediment. The intrusion of seawater from estuaries upstream in Jeneberang River and Tallo River will affect the pattern of water mass mixing which later generate patterns of current and sediments on the river. Mathematical model is a useful method to predict structural stratification of seawater mass flowing from estuaries upstream. The stages were to develop mathematical model of tidal current and mathematical model of water flow downstream.
The prediction of flood damage in coastal urban areas
Authors: Pariartha G , Goonetilleke A , Egodawatta P , Mirfenderesk H 
Published: February 2020

Abstract
The increase of impervious surfaces in the urban area triggers a flood. A flood occurs area with a dense population that will result in a lot of damage. The flood simulation itself is not adequate to calculate the flood damage, as it only shows the flood depth and extent. It needs the capability of mapping software to map the vulnerable area. Accordingly, the research study’s aim is to propose the methodology to predict the flood damage on the coastal urban area by combining the flood simulation model with GIS mapping software. MIKE FLOOD and ArcGIS were used to represent the flood simulation model and mapping software. The flood depth and inundation area were calculated with MIKE FLOOD; meanwhile, the residential house was mapped using ArcGIS. Both of MIKE FLOOD and ArcGIS were then combined to obtain the flood depth in each residential house. Moreover, to value the flood damage in monetary terms, the depth-damage curve and average house prices were applied. The result shows that the majority of the inundation caused by riverine flood and coastal area is the place where the largest inundation area occurs. As the flood appears in a residential area, the flood damage of the residential building in terms of annual average damage (AAD) was obtained with the amount of $8,716,227.67 calculated from six AEPs (50%, 20%, 10%, 5%, 2%, and 1%).
Type of mixing confluence between Mahakam and Karang Mumus Rivers based on temperature and salinity distribution tidally
Authors: Nur A , Suriamihardja D A , Thaha M A , Hatta M P 
Published: February 2020

Abstract
Observations of physical oceanographic parameters including temperature and salinity were carried out in Estuary Mahakam and Karang Mumus Rivers, on July 8, 2018, and July 14, 2018, to determine the vertical distribution patterns of temperature and salinity used to identify the type of estuary confluence Mahakam and Karang Mumus Rivers. Observations were conducted at 9 points and 11 points when the neap tide and the spring tide conditions were in the estuary area to enter the Karang Mumus river at the surface, middle and bottom layers. Temperature and salinity parameters were measured using the CTD Minos sensor system equipment. X PDC-B0900 which can simultaneously record profiles of temperature and salinity parameters lowered to the bottom of the water while the point position was determined using GPS. The results of the observation of temperature distribution showed that in the Estuary between Mahakam and the Karang Mumus Rivers did not have a thermocline layer. This was because of the depth of the water under study including shallow water. Salinity distribution was obtained with a relatively homogeneous salinity towards depth water. Homogeneous salinity is an indication of a well-mixed vertical process between seawater and freshwater.
The effect of channel roughness to the flow velocity (Case Study: secondary channel of the Saddang irigation area, Pinrang Regency)
Authors: Syamsuddin S G H , Maricar F , Lopa R T 
Published: February 2020

Abstract
The channel roughness phenomenon can result in changes in flow velocity. The research is aimed to analyze the magnitude of the speed of the flow that is made out of some roughness channels are different. Research is carried out in line Secondary Regional Irrigation Alitta village Bentenge Subdistrict Paleteang district Pinrang. Channels that are reviewed are the channel secondary which is made of some roughness channel are different by opening the doors as deep as 20 cm, 30 cm, and 40 cm. The results of the study indicate that happens changes the speed of each roughness channel. It is caused by the difference in the roughness of each channel and the sedimentation of each channel.
Activity-based – risk breakdown structure as an initial stage in formulating OHS unit cost analysis in the construction project
Authors: Kusumo E , Arifuddin R , Latief R U 
Published: February 2020

Abstract
Implementation of occupational health and safety in a construction project must be applied, referring to existing regulation. Previous research indicates that budget planning is one of the most basic aspects of OHS implementation problems in a construction project. Effective approach to formulating appropriate OHS cost models still needs further effort. This research tries to develop an activity based-risk breakdown structure as an initial stage in formulating the OHS unit analysis model based on the existing unit cost analysis model referring to Regulation of Ministry of Public Work and Human Settlement number 28/2016 about Unit Cost Analysis in Construction Project in Public Work Field. The methodology used in this research is archive analysis and expert judgment on activity based-risk breakdown structure analysis using HIRADC (hazard identification risk assessment determining and controlling) theory that attached to the workers and the project method used in each work unit. This research tries to deliver a simple job risk analysis method as an initial stage in formulating a reference for making a cost safety analysis formula in a construction project.