Indonesia Conference Directory

Corresponding Author
Derry Wiliyanda Nasution

Institutions
a) Faculty of Civil and Environmental Engineering, Bandung Institute of Technology
Jalan Ganesha 10, Bandung 40132, Indonesia
*derrynst[at]gmail.com
**erisdi[at]yahoo.com

Abstract
In Indonesia, Pavement condition measurement tools did not fully distributed to every region especially on the level regional road. This matter happen becaouse the amount of costs which needed to procure the measurement tools To overcome the problem of the availability of these equipment, the agency that has authority over roads usually conducts visual surveys in determining the conditions of road pavement. In line with technological developments, many inovation had been made to determine functional conditions of road pavement road using minimum procurement cost. One of the innovations which being developed in determining pavement conditions is the use of smartphones to measure road pavement roughness. By using an installed mobile application on the smartphone roughness measurements can be done. RoadroidTM is a mobile application that can be used in these measurements. Roadroid application measures roughness on International Roughness Index (IRI). In this research roughness surveys was conducted to give a recomendation about the usage of Roadroid. The survey was conducted with various conditions such as differences in speed and testing repetition. Based on the analysis , it can be seen that surveys with a speed of 20-40km/hour provide the best data quality in terms of repetition with repetition error is <20% (20m segmentation), <12% (50m segmentation), and <11% (100m segmentation). Roadroid has an accuracy issues that affects the sensitivity of IRI at certain segment intervals. Thus, the output data should be generated in large segments such as 100m. Based on the statistical analysis performed the best relationship between the conditions of pavement between the two methods (IRI and PCI) occurred at a survey speed of 20-40km / hour 100m segmetation with a correlation coefficient according to Spearman Rank test of 0.774 and 0.737 for Kendall Rank test. Correlation coefficient in statement before shows that the pavement conditions based on Roadroid IRI of 20-40km/h have the best correlation with PCI pavement conditions. In terms of segmentation, the longer the segmentation interval give the greater the correlation between IRI Roadroid and PCI pavement conditions.

Keywords
Pavement condition; Roadroid; IRI; PCI

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/4ubjV8MUeCHa

Corresponding Author
Anggit Lestari Putri

Institutions
a) Department of Civil Engineering, Institut Teknologi Sepuluh Nopember, Jl. Raya ITS, Surabaya 60111, Indonesia
*hera.widyastuti[at]yahoo.co.uk

Abstract
Bandung and Jakarta have been connected by the Cipularang toll road since 2005. Based on data from Badan Pengatur Jalan Tol (BPJT), currently vehicle volume both in Bandung and Jakarta has grown rapidly. This is followed by an increasing volume of vehicles traveling from Jakarta to Bandung and vice versa. High Speed Train becoming one of the governments choice as a form of mass transportation modernization in Indonesia in building inter-city connectivity and regional development. In this study several scenarios for binary logistic regression analysis were conducted to analyze modal transfer from shuttle travel users to the Jakarta-Bandung High Speed Train. The probability of shuttle travel users who are willing to move using the Jakarta-Bandung High Speed Train is strongly influenced by variables, those are: Train Travel Time, Costs, Frequency and accessibility between modes. The probability of willingness to pay a ticket price of Rp 240,000 with a travel time of 60 minutes is 77.40%. The probability of willingness to pay a ticket price of Rp. 260,000 with a travel time of 50 minutes is 45.17%

Keywords
High Speed Train;Willingness To Pay;Probability;Binary Logistic Regression Analysis

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/BWdJ6LjXV9KG

Corresponding Author
Mahendra Andiek Maulana

Institutions
a) Institut Teknologi Sepuluh Nopember
* mahendrasipil[at]gmail.com
b) Kumamoto University

Abstract
Bengawan Solo River is one of the longest natural channels in Indonesia which functioned as irrigation, fresh water supply and flood control. This river covers up to 1.6 million ha of area from the mountainous region in the Central of Java to the North Sea of Java with approximately 600 km of river reach length. Bengawan Solo River is an alluvial river indicated by Holocene formation along the river flow. Since alluvial soils were easy to transport, the river morphology changing becomes main problem. The river morphology changing causes local river channel alteration such as degradation, aggradation, river channel enlargement, and unequilibrium of river profile. In this study, the suspended sediment concentration (SSC), flow discharge (Q) and flow velocity (u) were investigated as primary data through field work. The SSC provides the maximum and minimum value with 1496.868 mg/l and 294.308 mg/l respectively correspond to the climate succession in Bengawan Solo River basin area. The suspended sediment value shows the promising sediment equilibrium correlation with the river profile transformation tendency. Inequality between input and output sediment concentration in this study explains the mechanism of river channel alteration including deposition and erosion processes.

Keywords
sediment concentration, erosion, deposition, river morphology, Bengawan Solo River

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/aMJnAemEkVZR

Corresponding Author
Heriansyah Putra

Institutions
(a) Department of Civil and Environmental Engineering, Bogor Agricultural University, Bogor, Indonesia
(b) Department of Civil and Environmental Engineering, Ehime University, Matsuyama, Japan
(c) Department of Civil Engineering, Universitas Muhammadiyah Yogyakarta, Yogyakarta, Indonesia

Abstract
Calcita induced precipitation methods (CIPM) are the recently potential technique in geotechnical engineering to improve the engineering properties of sandy soil. One of the most promised methods is enzyme-mediated calcite precipitation (EMCP). In this technique, the mixed solution composed of reagents and an enzyme of urease, which produces calcite, is used as the grouting solution. The precipitated calcium carbonate in sandy soil provides bridges between the grains of sand, restricting their movement and, thus, leading to improving the strength and stiffness. This paper presents a review of the application of EMCP for soil improvement and discusses the additional material and their effect on the treatment process and engineering properties of the sandy soil. Envisioned application, potential advantages and the limitation of EMCP for soil stabilization are also presented and discussed. Finally, the primary challenges and the development opportunities for future research are briefly discussed.

Keywords
Calcite Precipitation, EICP, EMCP, Enzyme, Soil improvement

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/q4rdYTvpMFaX

Corresponding Author
LISTIYANI DESY RATNASARI

Institutions
(a) Student Civil Engineering Department of Universitas Sebelas Maret Surakarta, Indonesia. Jl. Ir. Sutami No.36 A, Pucangsawit, Jebres, Kota Surakarta, Jawa Tengah 57126
Email : listiyani_desy[at]student.uns.ac.id

(b) Lecturer Civil Engineering Department of Universitas Sebelas Maret Surakarta, Indonesia. Jl. Ir. Sutami No.36 A, Pucangsawit, Jebres, Kota Surakarta, Jawa Tengah 57126

Abstract
One of the emerging issue in the development of infrastructure is how to design and build new building that is more sustainable as well as retrofitting existing building towards resources saving. Improved design and appropriate intervention to the building may reduce its energy and water consumption and increase its ecological performance. This paper evaluates the design and performance of Bank Jateng Regional Branch Office in Jepara, Central Java in terms of its resources intensity. Edge building apps would be used to provide metrics-driven approach in the evaluation. As resources efficiency is considered in the building operation, then, the paper explores some of the scenario that works better to the building response to the local climate in reducing and saving resources consumption. The prediction of the identifying resources (energy) saving criteria were then evaluated. Environmental analysis tool then was employed to carry out in depth analysis of the building 3D model to some to the best scenarios and optimize the design. This ongoing research is expected to gain positive insight in improving building design in terms of its resources saving that in turn will be beneficial for the environment.

Keywords
3D modeling, energy saving, sustainable design

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/wqmLY4WHCTxV

Corresponding Author
Annisa Annisa

Institutions
1 Institut Teknologi dan Sains Bandung, Technic and Design Department, Lot-A1 CBD Kota Deltamas, 17530, Indonesia
2 Universitas Ibnu Khaldun Bogor, Engineering Department, Jalan Sholeh Iskandar KM 2, 16161, Indonesia
3 PT Intan Prima Kalorindo, Jalan Tekno Raya B1-F, Kawasan Industri Jababeka III Cikarang, 17530, Indonesia

Abstract
This study examines a sustainable design of a steel roof structure in a relatively small sized workshop area. Sustainable design refers to minimizing waste, efficient land use, reducing the negative effect of construction and establishing a better work environment. The steel roof structure is an extension of the existing workshop area. A case study analysis is performed to obtain a sustainable design for the additional steel roof structure in the workshop area. The steel roof structure is located at PT Intan Prima Kalorindo (PT IPK), Jalan Tekno Raya B1-F, Kawasan Industri Jababeka III, Cikarang. Data, such as workshop layout and as build drawing, were collected from December 2018 to January 2019. The result of this study will provide a construction insight for PT IPK. Therefore, PT IPK can implement the sustainable design to optimizing the design as well as minimizing the construction cost. Generally, this study will also provide additional knowledge of the structural engineering.

Keywords
sustainable, steel, structure, roof

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/4xM2ZWKpYkmP

Corresponding Author
Dina Noviadriana

Institutions
Water Resources Engineering Department, Faculty of Engineering, University of Brawijaya, Malang, Indonesia

Abstract
In the flood management, one way to reduce the volume of flood is by using polder system. This system is implemented by The Government of DKI Jakarta Province with retention ponds in some area. To keep its function, some routine maintenance with appropriate budget of each polder are running, but there are some conditions which give impact to the polder functions and services. There are many aspects that contributed in the decreasing of polder service capability. In other hand, Water Resources Agency of DKI Jakarta Province, who is responsible for the maintenance of those polders, does not have any guideline to evaluate the polder service and correlate it with appropriate maintenance budget. This research analyzed seven selected polders in DKI Jakarta with 41 various variables and indicators that used to evaluate polder services, which are 4 technical variables (Tx) with 17 indicators (tx) and 5 non-technical variables (NTx) with 15 indicators (ntx). As the result of this research, evaluating the polder services are more precisely by using 36 various variables and indicators, which are 4 technical variables with 15 indicators and 5 non-technical variables with 12 indicators. These variables and indicators then could be used to evaluate the polder-s service.

Keywords
flood management, polders, indicators

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/knd2RewXHb3B

Corresponding Author
Nafilah Hafizah

Institutions
a.Departement of Civil Engineering, Adhi Tama Institute of Technology, Surabaya, Indonesia
b.Agency For the Assesment and Application of Technology, M.H Thamrin Street, Jakarta, Indonesia

Abstract
Semarang City is the center of the economic activities of the province of Central Java and as a business center and trade center which includes national strategic areas. As we know that, Semarang city is located between 2 (two) large cities, namely Jakarta and Surabaya. Thus, the city of Semarang has quite large and strong access to regional economic growth. Semarang as a business center that is connected with other cities. Surabaya is one of them. Surabaya-Semarang is an important route because it connects two provincial capitals. To anticipate high passenger growth, support from the transportation sector is urgently needed. This research was conducted in order to see the characteristics of railroad mode assumption, assuming trains operate with travel time service faster than conventional trains in the Surabaya-Semarang corridor. The research method uses stated preference and binomial binary logit with attributes of travel time and travel costs. We believe that the attributes that affect conventional trains respondents in choosing the mode between the conventional trains and the Surabaya-Semarang corridor fast train are travel time and travel costs so that it will have a negative impact on the growth of conventional railway passengers.

Keywords
travel time, travel costs, stated preference, binomial logit model

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/T9at8cyMdxpf

Corresponding Author
anita rahmawati

Institutions
1) Department of Civil Engineering, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta, 55183 Kasihan Bantul Yogyakarta, Indonesia

Abstract
Indonesia is the natural asphalt – Asbuton, a producer with the largest deposit in the world. One of the modified Asbutons produced in the form of Retona Blend asphalt 55 produced by PT. Olah Bumi Mandiri. Asbuton has the potential to be used as a binder on road pavement to replace oil asphalt that is commonly used. Beside natural asphalt, coal is also one of the natural resources in Indonesia which continue to be explored, causing fly ash waste. Furthermore, fly ash waste can be used as a cavity filler. The method used is Marshall in order to examine the effect characteristics of coal fly ash on a mixture of HRS-WC and AC-WC and Retona Blend 55 asphalt binder with varying levels of coal fly ash as a filler substitute with the content of 0%, 5%, 5.5%, 6%, and 6.5%. The results of Marshall characteristics using coal fly ash in a mixture of AC-WC and HRS-WC tend to increase in density, VFWA values. Meanwhile, the value of VIM and stability in the mixture of AC-WC and HRS-WC have decreased. Flow value in the AC-WC mixture tends to increase. The highest value of flow in AC-WC and HRS-WC at levels of 6.5%, namely 3.67 mm and 3.55 mm. The MQ value in the AC-WC and HRS-WC mixture has decreased with the highest MQ value in the mixture without using fly ash, i.e., 750.41 for HRS-WC and 655.07 for AC-WC

Keywords
AC-WC, coal fly ash, HRS-WC, Marshall, Retona Blend 55

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/eEZzqQ3wbt84

Corresponding Author
Rahmani Kadarningsih

Institutions
1Departement of Civil Engineering, Gorontalo State University, Gorontalo, Indonesia
2Departement of Civil and Environmental Engineering , Gadjah Mada University, Yogyakarta, Indonesia

Abstract
Abstract. The beam column joint is the most vulnerable area in the moment resisting frame system. The failure in this area can causes the failure of the overall system. The beam column joint must be in elastic behaviour, therefore the beams which assembling in the joint achieve the flexural capacity. The condition of the joint will be even more critical during an earthquake. The seismic load causes the beams that arranged in the interior column resist a directional moment. This condition is different from the behaviour of the beam when resist the gravitation loads. This study shows how beam column joints without reinforcement are not adequate to resist the lateral earthquake load that occurs. The joint is only adequate to resist the load in the amount 38% of the beams flexural capacity. The amount of concrete shear capacity on the joint is compared to the joint concrete shear capacity on SNI 2847:2013 and the joint shear capacity of Park and Paulay (1974). The calculation of the concrete shear capacity on the SNI 2847:2013 reached 80.2% the joint shear capacity of the experiment. The calculation of the concrete shear capacity of the Park and Paulays reached 31.2% joint shear capacity in the experiment.

Keywords
beam column joint, concrete shear capacity, seismic load

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/eYfVx3NhrCzL

Corresponding Author
Dian M Setiawan

Institutions
Universitas Muhammadiyah Yogyakarta

Abstract
Ballasted track is a technology that commonly used in Indonesia due to the practical in build and maintenance. However, the application of this technology causes much ballast degradation that effect the rail track geometric condition. The rail track stabilization using bitumen and scrap tire was recommended to make a solution the problem of the ballasted track. In this research, scrap rubber and bitumen used as much as 10% and 2% of total weight, respectively. The samples then built with 4 different configurations to analyses the value of some parameters such as void volume, deformation, abrasion, and elasticity modulus. Results show that the ballast with scrap rubber and bitumen has a smallest value of void volume which is 35.21%. Also, the sample of ballast with bitumen has the smallest deformation value, which is 5 mm at the load of 483.4 kPa, and the highest elastic modulus, which is 27.13 MPa. Furthermore, the smallest value of abrasion, 19.6 grams, was occurred on ballast with bitumen and scrap rubber.

Keywords
Abrasion, deformation, elastic modulus, stabilization, volume void

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/xWyc8rBMHRe9

Corresponding Author
Anis Rahmawati

Institutions
Universitas Sebelas Maret;
School of Environment and Society, Tokyo Institute of Technology

Abstract
The reuse of grey water is one of the water management system implementations as an effort to preserve the environment. Gray water filter is an instrument that can be used to process grey water so that it can be reused. The purpose of this study was to determine the effect of the grey filter composition sequence on the acidity (PH) of household wastewater. This study used quantitative experimental methods. Water samples were tested before and after flowing through a filter made of four types of materials, namely sand, gravel, palm fiber, and charcoal, with the thickness of each material was 5 cm. The results of the study indicated that the composition sequence of the Gray Water Filter affects on the value of the water acidity level. The composition of the filter material that produces the lowest PH value was a composition sequence of gravel-sand-palm fiber-charcoal. While the sequence of composition that produces the highest PH value was the charcoal-and-gravel-palm fiber. All filter materials must be washed before being used as a gray water filter material so that the impurities on the surface of the material will not dissolve into the water that flows through the filter.

Keywords
196

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/aCGucgpfbTwn

Corresponding Author
Mira Anjar Gita

Institutions
Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia

Abstract
As the second largest city in Indonesia, Surabaya has quite big number of apartment building which is increasing from year to year. As the other construction project, apartment project can be considered as successful if is completed on time according to the time, cost and quality. However, it is not sufficient for the property developer only think a success from a short term, but also in the long-term that is related to product and market success. With regard to that, a green design potentially affects the success of the project in the long-term. This paper is an initial step of the research to develop a conceptual framework to investigate relationship between green design and the success components design from the developers- perspective in Surabaya. This research can help stakeholders understand whether a green design positively affects the success of the apartment projects in the long-term

Keywords
developer, green design, market success, product success

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/Lrme8jhqnRFy

Corresponding Author
Siti Umi Kalsum

Institutions
Universitas Gadjah Mada, Indonesia

Abstract
Abstract Water quality in Batanghari River has decreased due to changes in land use. One of the changes in land use is the existence of Unlicensed Gold Mining (PETI) in the upper part of the river. The test results of the Environmental Laboratory of the Environmental Office of Jambi Province showed that the upper and downstream of the Batang Asai River contained 0.003 mg / l of mercury and the Batang Limun River has 0.005 mg / l ini its upperstream and 0.004 mg / l in its downstream. The purpose of this study was to determine the effect of unlicensed gold mining on the spatial quality of the Batanghari watershed. This research approach uses the Principal Component Analysis (PCA) model through remote sensing techniques and Geographic Information Systems. The results of this study are expected to obtain a database of changes in the quality of Batanghari River water due to spatial-based gold mining activities which form the basis for the utilization of Batanghari river water as raw water for drinking water.

Keywords
Illegal Gold Mining Activities; The quality of Batanghari River; Spatial Model.

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/dJkHqRy3TgmE

Corresponding Author
Pratama Yuli Arianto

Institutions
(a) Department of Naval Architecture, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
*pratama.17041[at]mhs.its.ac.id

(b) Department of Civil Insfrastructure Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia

Abstract
The sandwich structure as a substitute for the conventional structure in the ship was an interesting topic in this recent era. Various innovation of type and shape of the core was studied with many researchers. Resin-talk-catalyst combination is one of cores type that has a high opportunity to research deeply and to applicate massively. The effect of roughness surface on the bending properties and failure mechanism of sandwich structure by using resin-talk-catalyst as the core and steel as the face was investigated in this paper. The four-point bending test of the sandwich structure was performed at three variations resin-talk-catalyst composition and two variations of with and without roughness surface in order to understand the deformation and failure mechanism. The effect of roughness on deformation modes, failure mechanism, and bending failure load was studied and analyzed. The result showed that the roughness surface and various type of core combination has a visible impact on the deformation modes, failure mechanism, and bending failure load. The roughness surface sandwich structure was stiffer and stronger than non-roughness surface sandwich structure.

Keywords
Bending Properties, Failure Mechanism, Roughness Surface, Sandwich Structure, Ship Structure.

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/K86JUXPT3gve

Corresponding Author
Hakas Prayuda

Institutions
(a) Department of Civil Engineering, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta.
Jl. Lingkar Selatan, Tamantirto, Kasihan, Bantul, Yogyakarta, Indonesia, 55183
Email : fanny.monika.2007[at]ft.umy.ac.id

(b) Ph.D Student in Department of Civil Engineering, National Central University, 32001 Jongli City, Taoyuan County, Taiwan

Abstract
The Yogyakarta region is an area that has quite a high earthquake activity. Meanwhile, the usual earthquake resistant building design ignores the influence of wall stiffness. For this reason, it is necessary to evaluate the structural behavior of earthquake loads, if the infill wall is included in the analysis. This research was conducted at the Postgraduate Building of the Faculty of Medicine, Gadjah Mada University. The purpose of this study is to look for the effect of displacement and interstory drift with additional infill walls. The research was conducted with ETABS software to make the model according to the actual conditions. The earthquake load simulated using equivalent static load and spectrum response. The structure model of the open frame structure building and the infill frame structure are modeled to compare the results. Result analysis shows that interstory drift in the open frame structure model is not safe because it exceeds the permit limit. While the infill frame structure of each floor is still within the range of permit values so that the structure deviation is still in the safe category as required by SNI 1726-2012.

Keywords
Infilled Wall, SNI 1726-2012, open frame structure

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/rbeyGKQqcThZ

Corresponding Author
Merzy Mooy

Institutions
a) Civil Engineering, Structural, Sepuluh Nopember of Institute Technology
Jalan Raya ITS, Keputih, Sukolilo
*merzhymooy[at]yahoo.com
b) Civil Engineering, Structural, Sepuluh Nopember of Institute Technology
Jalan Raya ITS, Keputih, Sukolilo

Abstract
Corrosion due to the loss of reinforcement diameter has an influence on flexure and shear capacity in reinforcement concrete. One of the corrosion causes is concrete cracks. Moreover, corrosion in reinforcement can causes expansive pressure worsen condition of the structure. This research investigate shear capacity of 4 reinforced concrete beams with dimensions of 200 x 10 x 20 cm. There were 2 beams exposed to 3.5% NaCl by galvanostatic method with constant current of 0.1 ampere for one month and 2 beams without exposure. Furthermore, four point bending test with shear span-effective depth ratio (a/d) under 2.5 will be applied. The test results showed that shear compression occurs along 2/3 of shear span, beams with exposure has shear capacity 35% and compression strength 8% lesser than beams without exposure.

Keywords
shear capacity, corrosion.

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/wTrKdMkHezNh

Corresponding Author
ocid Mursid

Institutions
Department of Mechanical Engineering, Universitas Indonesia, Depok 16424, Indonesia

Abstract
The purpose of this study was to show the hardness effect on natural rubber compound to KNF 800 (cone type marine fender) performance. The fender performance of the KNF 800 can be analyzed using the compression loading method with a deflection of up to 70%. Methods on this study using explicit dynamic on Abaqus student software. fender material using natural rubber with 4 variations of hardness and analysis using yeoh 3rd order material. The results of the analysis are then compared with the actual test of compression. Based on the result of the analysis, if the hardness of natural rubber compound increase, the reaction force of KNF 800 increase.

Keywords
Marine Fender, Natural Rubber, Explicit Dynamic

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/DdzPNwEUH3ZJ

Corresponding Author
Gatut Bayuadji

Institutions
a) Doctoral Program on the Department of Water Resources, Faculty of Engineering, University of Brawijaya, Jl. MT Haryono No 167 Malang-Indonesia
*gbayuadji75[at]gmail.com
b) Department of Water Resources, Faculty of Engineering, University of Brawijaya, Jl. MT Haryono No. 167 Malang-Indonesia

Abstract
The retarding basin decay factor is controlled by retarding or storage factor. Nowadays, the empirical formula of retarding factor is built based on the watershed morphometric. The roles of rainfall and decay coefficient are the important factors for controlling the threshold in predicting the flood. Generally, the analyses are carried out on the soil type parameter, watershed morphometric, and flood. This study intends to investigate the influence of soil parameters on the retarding factor as the new variable to the determination of the decay factor. The result is hoped that retarding basin factor is influenced by the soil texture, effective porosity of the soil, and soil conductivity hydraulic that is as the input for building retarding basin decay factor.

Keywords
soil type, soil texture, retarding basin factor, watershed.

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/Ha48Lwntdc6r

Corresponding Author
Muchlisin ST, M.Sc.

Institutions
Department of Civil Engineering, Faculty of Engineering, UMY, Indonesia

Abstract
Population growth in Indonesia is currently experiencing a high increase. Those things will affect the increase of transportation needs, so that might increase the traffic volume. Traffic volume is needed in transportation planning. Nowadays, the manual method is usually used by field observers using a calculation tool called a counter to get traffic volumes. With the high of traffic volumes, manual traffic volume calculations are less effective. For this reason, in this study the researchers modified the program to create a vehicle detection program and classify vehicles according to MKJI 1997 on a Java-based off-street called U-COUNTER (Rural Area). The method that used in this research is Gaussian Mixture Model (GMM) method that base in image processing. In this program will attack of video input in the morning with 6 m height and 7 m, as well as video input in the afternoon with 6m and 7m height. The calculation results on the program will compared with manual calculations to get the accuracy and percent error values. The highest accuracy results obtained in this program are 76.48% with an error value of 23.52% for video 6 m in the morning. For the lowest accuracy results found on the 7 m video in the afternoon with an accuracy of 43% with an error value of 57%, this caused by congested traffic during video capture.

Keywords
Gaussian Mixture Model (GMM), Rural Street, Image Processing, Traffic Volume.

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/EavpxWrgcBjV

Corresponding Author
Wahyu Widodo

Institutions
Universitas Muhammadiyah Yogyakarta

Abstract
The closures of the intersections because of construction, particularly in an urban area, are potentially impact on the congestion on the other road networks. The intersection which under construction in Yogyakarta city is the Kenthungan junction that located in North Ring Road of Yogyakarta. This study aims to create the optimization model of an existing junction condition (without project) and junction condition in the future (with project) to minimize the traffic impact. The software that used in this study was PTV. VISSIM 9.0 which is one of the micro simulation programs invented by PTV Group with the model results in the form of dynamic simulation. It could be concluded that the model result on existing conditions produce the level of service (LOS) E with the delay of 721.85 sec/passenger car unit (> 60 sec/pcu). Furthermore, the impact of the construction on this intersection caused the increasing of delay at other intersections, those are Kenthungan (771.71 sec/pcu), Gejayan (from 669.53 sec/pcu to 719.69 sec/pcu), and Monjali (from 591.67 sec/pcu to 641.11 sec/pcu). Therefore, it was recommended to widen the highway lane to become 2 m and the vehicle driver suggested avoid to passing the kenthungan intersection and choose another routes, i.e Southern Ring Road, especially for heavy vehicle in order to reduce traffic impact.

Keywords
Intersection, Model, Optimization, PTV.VISSIM

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/wn3UgxWt2VbJ

Corresponding Author
anita rahmawati

Institutions
Department of Civil Engineering, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta

Abstract
Road Solo-Yogyakarta KM 9-15 is the national highway which supports the traffic of goods and services, but many passing goods transport vehicles do not match the allowable load. As a consequence, the damage on the pavement occurred. Therefore, this study aims to know the effect of overloading on design life and pavement thickness. This study used the method of Binamarga to analyze the reduction in design life and the effect of pavement thickness caused by overloading. The analysis was carried out by using the formula of design life decreasing with the value of Cumulative Equivalent Standard Axle (CESA) for overloading and standard load. Based on the 2002 Binamarga method, the design life value is reduced by about eight years,from the previously determined is 20 years. Moreover, based on the analysis on pavement thickness of 20 years design life by using Binamarga 2002 for standard load, it showed that pavement thickness is needed for a surface layer of 24.5 cm (Laston). Also, the base course layer is 11.5 cm (Sirtu Class A), and the subbase course layer is 22 cm (Sirtu Class B). At the same time, for overloading, the analysis result showed that it was required the pavement thickness for the surface layer of 27 cm (Laston), the base course layer of 27 cm (Sirtu Class A) and the subbase course layer of 6.5 cm (Sirtu Class B). These results indicate that overloading causes a reduction in the design life of the pavement and an increase in the thickness of the pavement.

Keywords
Binamarga Method, Design life ,Overloading, Pavement thickness

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/Wabd49LeNYhT

Corresponding Author
Emil Adly

Institutions
Universitas Muhammadiyah Yogyakarta

Abstract
The roadways that located around the beach are often have some problems with puddle of the seawater caused by the condition tides or known as rob water. Therefore, to find alternatife way due to prevent pavement damage, application of steel slag with higher quality is better to be used rather than ordinary aggregate. This research substitutes aggregate into the steel slag with 100% coarse aggregate number 0,5 inch and 50% fine aggregate number 30 that will be soaked in the seawater about 6 hours, 12 hours, and 24 hours. From this research, the longer this immersion is conducted, the more significant effects will affect marshall characteristic resulting poor quality of asphalt, marked by decline of stability value, VFWA value, and also MQ value. As for the value of flow, VITM and VMA tend to rise.

Keywords
immersion, arshall, puddles sea, seawater, steel slag

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/QfuYrcMH8yka

Corresponding Author
Siti Qomariyah Qomariyah

Institutions
a)Doctoral Program in Environmental Science, Graduate Program, Sebelas Maret University
* siti.qomariyah[at]ft.uns.ac.id
b)Department of Civil Engineering, Faculty of Engineering, Sebelas Maret University
c)Graduate School of Environmental Science, Sebelas Maret University, Indonesia
d)Department of Physics, Faculty of Mathematics and Natural Sciences, Sebelas Maret University

Abstract
Abstract. Pollution of water sources as a result of inadequate sanitation is a serious issue in Indonesia. Domestic wastewater is considered as the most significant contribution to the water pollution. Centralized wastewater treatment plant systems built to serve city sanitation is costly for developing countries. Considering greywater has been practically separated from blackwater at its source of wastewater in most households in Indonesia, decentralized greywater treatment systems by adopting manmade wetlands in the level of individual household can be promoted. The manmade wetlands are characterized by specific conditions enabling simultaneous various physical and biochemical processes. This system utilized the interaction of aquatic plants and microorganism in the removal of pollutants. This paper presents the performance of a man-made wetland built four years ago on a household yard. The manmade wetland was constructed with dimension of 170x70x70cm, planted with Cyperus alternifolius aquatic plants, and filled with 40 cm gravelly sand filter media. Treatment performance of the systems was evaluated for the removal efficiency of Biological Oxygen Demand, Total Suspended Solid, Dissolved Oxygen, Oil & Fat, and Detergent. Results showed that the manmade wetland system still removed effectively the pollutants. Hence, the system still in a good performance to decrease the wastewater load discharged into the municipal drainage systems, help to recharge groundwater with better quality source, and provide aesthetic-green yard views.

Keywords
man-made wetlands; greywater; treatment

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/bdjCDY9QPX37

Corresponding Author
Dian M Setiawan

Institutions
1Department of Civil Engineering, Universitas Muhammadiyah Yogyakarta, Jl. Brawijaya, Bantul, 55183, Indonesia

2Department of Civil Engineering, Universitas Muhammadiyah Yogyakarta, Jl. Brawijaya, Bantul, 55183, Indonesia

Abstract
This research utilizes scrap rubber from motorcycle tires as a ballast layer mixture component. A compression test method was used with three test samples: ballast (sample I), ballast with 10% uniform graded scrap rubber (sample II) and ballast with 10% continuous graded scrap rubber (sample III). This research aims to analyze the elastic modulus, durability and vertical deformation of the ballast layer. It can be concluded that the elastic modulus of sample I, II, and III was 14.28 MPa, 8.53 MPa, and 3.10 MPa, respectively. Moreover, the abrasion of sample I, II, and III was 162.1 gr (3.24%), 54.2 gr (1.08%), and 50.1 gr (1%). Furthermore, at the same number of vertical deformation (5 mm), the sample I was able to receive the most considerable load that is 1980.9 Kg, followed by sample II by 1252.2 Kg and sample III by 443.7 Kg.

Keywords
ballast durability, elastic modulus, rail track, scrap rubber, vertical deformation

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/3X9tbwUEyAKd

Corresponding Author
Carlina Nurul Fithria

Institutions
a) Infrastructure Engineering Management, Master of Civil Engineering, Diponegoro University
Jl. Prof. Soedarto, SH, (Gedung D Lantai 2)
Tembalang, Semarang, Jawa Tengah, Indonesia, Kode Pos 50275
*carlinafithria[at]gmail.com

b) Engineering Faculty, Diponegoro University
Jl. Prof. Soedarto, SH, (Gedung D Lantai 2)
Tembalang, Semarang, Jawa Tengah, Indonesia, Kode Pos 50275

Abstract
Indonesia has committed to making a development transition in a low-carbon in the future. Increased use of private vehicles that are not controlled will lead to congestion and fuel consumption contributes to greenhouse gas emissions. One alternative mode of transportation that is environmentally friendly in sustainable transportation is cycling. This study aims to identify the factors that encourage and discourage the choice of modes of transportation by cycling, rank the choice of cycling facilities according to societys preferences and develop a strategy for developing bicycle facilities in Semarang City. From the results of factor analysis, factors that discourage the choice of cycling are discomfort, environment & safety, and daily activity. While the factors that encourage cycling choices is the pleasure factor. The assessment of cycling facilities was carried out by multiple attribute analysis with the highest rank results are bicycle lanes, bicycle parking, and signaling. One strategy for developing cycling facilities is in the form of bicycle lanes with continuous routes that are shady and connected to public transportation routes. These efforts are expected to reduce the factors that discourage the choice of cycling, and also for supporting tourism and the concept of Transit Oriented Development in Semarang City.

Keywords
Cycling Perception, Cycling Facilities, Factor Analysis, Transportation Management.

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/BVtWcGehjETf

Corresponding Author
Rahmani Kadarningsih

Institutions
1Departement of Civil Engineering, Gorontalo State University, Gorontalo, Indonesia

Abstract
Abstract. The work of square column is felt easier than the work of round column, on the implementation. The work is both on reinforcement assembly and when making formwork. However, the comparison of the strength of the two cross sections of the column still has to be proven. The column cross-sectional area and the reinforcement area are made equal to compare the strengths both in terms of the nominal axial resistance nominal and the nominal moment resistance. The analysis was carried out in the short column and in the slender column, with reference to SNI 2847: 2013. Based on the results of the analysis it was found that the round column produces the nominal moment resistance greater than the square column with the same compressive force. The graph interactions depictions of the round column greater than square columns.

Keywords
square column, round column, The Strength Comparison

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/U97M2qCePAVy

Corresponding Author
ISRIA MIHARTI MAHERNI PUTRI

Institutions
a) Civil Engineering Departement, Sepuluh Nopember Institute of Technology, Surabaya, Indonesia
*tachy.ria[at]gmail.com

Abstract
Good, safe, and efficient transportation are factors should be considered by resident in urban areas. Together with increasing development of technology make rise to a variety of transportation tools that can make competition between transports. While the upper class resident is getting bigger the dependence on personal vehicle it will increase the volume of traffic. Damri bus and Tranex Mandiri are the mode of transportation at the Minangkabau International Airport which is currently the interested people in using buses are decrease and need long time before moving to carry the passengers because of waiting for full load capacity, therefore it is carried out the analysis of probability of movement mode from personal vehicle to Damri and Tranex Mandiri. The methods are used in this research include the distribution of questionnaire, interview and Stated Preference technique. The performance parameters of buses are stop time, headway and load factor. In this research carried out several scenarios binary logistic regression analysis to analyze the movement of mode. The probability of private car users who want to move with Damri buses and Tranex Mandiri are strongly influenced by variables: the purpose of the trip, probability of transferring private car mode transfer is 69.90%.

Keywords
Damri bus and Tranex Mandiri; Probability Stated Preference; Logistic Regression; Performance

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/6JuEQCt2PxF3

Corresponding Author
Aqli Mursadin

Institutions
Civil Engineering Graduate Program
Engineering Faculty
Lambung Mangkurat University

Abstract
Minimizing construction waste can help achieve the environmental, economic, and social benefits of sustainable construction. Types of waste may include those known as non-value adding activities. Studies on the effects of construction waste on project performance are important to enable mitigation actions. Most of such studies, however, are based on perception surveys. This has led to problems in deriving valid information using parametric methods during the statistical analysis of the response. These problems are mainly related to the assumptions concerning the underlying distribution and the categorical nature of the data. This paper explores a class of nonparametric methods for analyzing survey data concerning the effects of construction waste on project performance. It includes a number of nonparametric tests for repeated measures and post-hoc procedures. Data concerning seven types of construction waste on the generation of material waste from past study are used for this purpose. The results show that consistent outcomes and inferences can be made among different nonparametric methods. A recommendation on which tests and procedures to use is given.

Keywords
construction waste, nonparametric inference, sustainable construction

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/mZ7tgJdwAHBv

Corresponding Author
Wiji Lestarini

Institutions
a)Faculty of civil engineering and planning, islamic university of Indonesia, Jl. Kaliurang Km 14.5, Besi, Sleman, Yogyakarta 55584
b)Departement of civil and environmental Engineering, UGM, Jl. Grafika, Kampus No.2, Senolowo, Sinduadi, Mlati, Kabupaten Sleman, Daerah Istimewa Yogyakarta 55284
b)Departement of civil and environmental Engineering, UGM, Jl. Grafika, Kampus No.2, Senolowo, Sinduadi, Mlati, Kabupaten Sleman, Daerah Istimewa Yogyakarta 55284

Abstract
Malioboro Area is the city centre of Yogyakarta. It is very busy area. There are many shops, public utilities and attractions in this area. Many visitors come to this area, especially during long weekends and holidays.It is planned to close and pedestrianize the Malioboro main street. Traffic surveys were carried out in Malioboro and surrounding areas. JICA Strada transport modeling software has been used to analyze the effects of pedestrianization in this area. There are some alternatives, i.e.: pedestrianization for the whole area of Malioboro or pedestrianization for only a part of Malioboro. Traffic increase in the surrounding areas have been analyzed. Some recommendations to reduce the negative impact of traffic increase have also been suggested.

Keywords
pedestrianization, transport modeling, JICA Strada

Topic
International Symposium of Civil, Environmental, and Infrastructure Engineering

Link: https://ifory.id/abstract/f8xavDR4MEyC