Indonesia Conference Directory

Corresponding Author
Naniek Utami Handayani

Institutions
Industrial Engineering Department, Faculty of Engineering, Diponegoro University
*naniekh[at]ft.undip.ac.id

Civil Engineering Department, Faculty of Engineering, Diponegoro University

Abstract
Climate change due to rising greenhouse gas (GHG) emissions and resource depletion is one of the major challenges of the twenty-first century. Construction waste is not only associated with energy use and waste of materials in the construction process, but also other activities that do not add value such as repair, waiting time and delays. Concepts such as waste and value are not well understood by construction personnel. They often do not realize that many activities they carry out do not add value to the work. These issues contribute to a reduction in the value of construction productivity and could reduce company performance. The aim of this GSCM study on the construction sector are to identify the drivers/motives of stakeholders are for implementing green practices; and the barriers/ challenges faced by stakeholders are in the implementation of these practices. The research methods are literature study (deductive methods) and fields observation (inductive methods) where the experts are going to be asked to contribute their opinions related to barrier and driver to implement the Green Supply Chain management (GSCM) in construction.

Keywords
Green Supply Chain Management, Construction, Driver, Barrier

Topic
Civil Engineering

Link: https://ifory.id/abstract/gDcLvKPm7tjr

Corresponding Author
Fidi Lee

Institutions
a)Universtas Mercu Buana, Jl. Meruya Selatan No.1, Meruya Selatan, Kec. Kembangan, DKI Jakarta 11650

b)Universitas Katoik Widya karya Malang, Jl. Bondowoso 2-Malang No.2, Gading Kasri, Kec. Klojen, Kota Malang, Jawa Timur 65115.

Abstract
The micro-cracks that commonly occur in concrete structures are a potential source of crack propagation which leads to the possibility of catastrophic failure. Concrete cracks that occur propagating mainly along the interface zone that significantly conditioned by aggregate characteristics. Aggregate characteristics as concrete fillers have a significant role as a strain energy release medium known as fracture energy. This research is using an experimental investigation about the fracture characteristics of concrete using different gradations with a maximum diameter of 25 mm and 20 mm. The experiment includes a compressive strength test and a fracture parameter test. Three-point bend test was selected based on RILEM recommendations to calculate fracture parameters. The result has shown that the aggregate gradations used in concrete mixtures should take into account the effect on compressive strength and total fracture energy.

Keywords
Aggregate grading, compressive strength, fracture energy, stress intensity factor

Topic
Civil Engineering

Link: https://ifory.id/abstract/EBj7W6qp2rvT

Corresponding Author
Norma Puspita

Institutions
(a) Civil Engineering Department, Engineering Faculty, Indo Global Mandiri University, Jl. Jend Sudirman No. 629 Palembang - South Sumatera, Indonesia
*norma.puspita[at]uigm.ac.id

Abstract
Failure of concrete in the environment which containing sulphate causes damage to the cement bonds in the concrete. One of environment that contains sulphate is peatlands. Peat water has a low acidity (pH) and causes the water to be acidic. The acidic environment will slowly damage the concrete starting from the edges and corners of the concrete with the release of granules of concrete particles so that the concrete becomes porous. To reduce the damage, used mineral additives in the form of Ground Granulated Blast Furnace Slag (GGBFS) on Type II Cement. The purpose of this research was to determine the effect of using variations of GGBFS as an additives on Portland Cement Type II on compressive strength of high quality concrete and the optimum variation percentage using GGBFS as additives on Portland Cement Type II. This research outlines divided into several stages, i.e. material testing, manufacturing of test specimens, testing of test specimens and analysing test results. This research used a cylindrical specimen with 4 variations of the mixture that is normal concrete, concrete with the addition of 2 % ,4%, and 6% GGBFS by the weight of cement with a concrete age of 7, 14, and 28 days. Also, the treatment of specimens is carried out using peat water. From the results of this research, it can be concluded that the effect of using a GGBFS addition as an additives can increase the compressive strength of concrete from normal concrete, however it decreases with the addition of 2% GGBFS and 6% GGBFS at the age of 7 days amounting to -14.62 % and -3.47 %. The optimum variation percentage is concrete with the addition of 4% GGBFS which produces compressive strength of 40.90 MPa and the minimum variation is concrete with the addition of 0 % (normal concrete) which produces compressive strength of 33.82Mpa.

Keywords
GGBFS, Type II Cement, Peat Water, Concrete Compressive Strength

Topic
Civil Engineering

Link: https://ifory.id/abstract/qXAvBkuK6L2n

Corresponding Author
Erizka Ramdhiani

Institutions
a) Civil Engineering Department, University of Indonesia, Depok, West Java, 16424, Indonesia
b) Civil Engineering Department, University of Indonesia, Depok, West Java, 16424, Indonesia
*wrahayu[at]eng.ui.ac.id

Abstract
Peat has been known for its high compressibility, low shear strength and high-water content. Moreover, when it comes to dry season, peatland is easily to be burnt leaving the large amount of carbon into the atmosphere also causes significant damage to peatland ecology. Based on these, peat burning remains are used as fly ash and it is expected to improve the strength of peat soils alongside to be environmentally safe. Laboratory tests were carried out according to that condition. A study on the influence of fly ash addition in peat soils was done by comparing the result from CBR (California Bearing Ratio). Different percentages of fly ash (i.e. 15, 20, and 25%) were added into peat soil at optimum moisture content amidst 5% of Portland Cement for each sample with a variety of curing time of 2 hours, 1 day, 3 days, and 7 days. Changes were observed in specific gravity, acidity, and the microscopic structure. The CBR test results show that the peat gained strength due to the addition of different percentages of fly ash as well as the increase of curing periods, with the optimum result applying 15% of fly ash upon the curing periods of 1 day. Furthermore, according to the results, the peat soil can be used as a subgrade.

Keywords
California Bearing Ratio; Peat Soil; Peatland Fire; Stabilization

Topic
Civil Engineering

Link: https://ifory.id/abstract/JN3RBta9WZAn

Corresponding Author
Syahril Syahril

Institutions
1) Departement of Civil Engineering Lecturer of Politeknik Negeri Bandung. Jl. Gegerkalong Hilir, Ds. Ciwaruga, Bandung 40012. Email: syahril_polban[at]yahoo.com
2) Departement of Civil Engineering Graduate Student of Politeknik Negeri Bandung. Jl. Gegerkalong Hilir, Ds. Ciwaruga, Bandung 40012. Email: reghanzareza[at]gmail.com

Abstract
Subgrade is part a road pavement structure designed to accept vehicle loads on it. Therefore must have an optimal carrying capacity and be able to accept the load due to traffic without experiencing significant changes or damages. The increase of heavy vehicle passing the main road cause damage on the pavement surface, such as rutting. For this reason, soil improvement is needed in order to obtain a stable subgrade to increase the performance of the pavement structure. The effort of stabilizing the subgrade soil of expansive clay has been conducted by various stabilizer, such as limestone, cement-fly ash, pozzoland material and others. One of stabilizer materials that can be used as an additive material is phosphoric acid, meanwhile other alternative material for phosphoric acid mixture is coconut shell ash. Soil sample is taken from Gedebage region and the test result on the soil is categorized as expansive soil category. In a soil stabilization with the mixture of 8% coconut shell ash + 10.5% phosphoric acid within 0 day of caring period can increase the carrying capacity of the soil and reduce damage due to fatigue cracking and grooves (rutting) which can improve the performance of flexible pavement structures.

Keywords
Subgrade, expansive clay, coconut shell ash, phosphoric acid, pavement

Topic
Civil Engineering

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

Corresponding Author
Tanya Audia Balqis

Institutions
Civil Engineering Department, Politeknik Negeri Bandung, Indonesia
Post-Graduate Student of Infrastructure Engineering Study Program, Applied Master Program, Politeknik Negeri Bandung, Indonesia

Abstract
This research is performed to analyze effect of using crumb rubber (CR) on the overlay design of Palembang City – Betung roads. Analysis of existing road conditions using the AASHTO 1993. This analysis based on deflection data using the Falling Weight Deflectometer (FWD). While, the overlay design analysis using CIRCLY 7.0 software to determine horizontal tensile strain (ɛh) for fatigue live and vertical compressive strain (ɛv) for rutting live parameters. The result showed that using CR can increase fatigue live into 66 % and rutting lives into 22 % for contribute pavement performance. To ensure the effect of CR in pavement-s performance, further research must be taken to find out if there are other effects that support.

Keywords
Crumb Rubber, Fatigue, Rutting, Flexible Pavement

Topic
Civil Engineering

Link: https://ifory.id/abstract/N7QW64jqKYnX

Corresponding Author
Revy Safitri

Institutions
a) Civil Engineering Department, Faculty of Engineering, Universitas Bangka Belitung, Jl. Kampus Terpadu Balunijuk, Indonesia
*revy.safitri[at]gmail.com
b) Mathematics Department, Faculty of Engineering, Universitas Bangka Belitung, Jl. Kampus Terpadu Balunijuk, Indonesia
c) Department of Law, Faculty of Law, Universitas Bangka Belitung, Jl. Kampus Terpadu Balunijuk, Indonesia

Abstract
The Capital of Bangka Belitung Province, Pangkalpinang City, become a center of various activity that generates high vehicle trips. The high vehicle trips require larger parking spaces. Therefore, the parking space in this city not only provide parking lots but also provide on-street parking. The Government of Pangkalpinang City has established the policy of on-street parking fees for parking management. But, the implementation of on-street parking in Pangkalpinang City has not run optimally. This study aims to determine the effectiveness of the current on-street parking fee. In this study, the effectiveness of the on-street parking fee is reviewed based on current fees, willingness and ability to pay for parking users. Data collection was collected by distributing questionnaires to on-street parking users. The results showed a difference between the official and current on-street parking fees. In addition, the current fee is considered too low when compared to the users willingness to pay and ability to pay.

Keywords
on-street parking, parking fee, willingness to pay, ability to pay

Topic
Civil Engineering

Link: https://ifory.id/abstract/TPW7Yp3qnezU

Corresponding Author
Agung Sedayu

Institutions
State Islamic University of Malang

Abstract
The Terboyo Terminal Semarang had been officially closed its operations and services in 2018 by the Ministry of Transportation of the Republic of Indonesia. This terminal is a terminal type A that has an important role as a transit point for public transport between cities between provinces that connects between Surabaya-Jakarta via the northern coastline. This study aims to evaluate the performance degradation factors that cause this terminal service to be closed, so that this research can be used as a recommendation so that there is no recurrence of the failure of transportation infrastructure development, especially road transport passenger terminals. The data collection phase uses a questionnaire distributed to a number of respondents. The research respondents are terminal users who are aware of terminal developments, namely public transport passengers, public transport operators and commercial area tenants. The research method used is multiple linear regression analysis with the composition of the dependent variable components are terminal performance and independent variables covering the reliability of transportation, architectural aesthetics, material and structure, utility and environment, and behavior and social interaction. The results describe that the five independent variables have a significant effect on the dependent variable of terminal performance. The utilities and environmental independent variable become a variable with the most significant level of influence. This result is relevant to the current terminal problems, namely the utility of buildings and terminal areas that are not good, where the terminal area often floods due to the proximity of the Java sea coast.

Keywords
Evaluation; decline; performance factors; passenger terminal; road transport

Topic
Civil Engineering

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

Corresponding Author
Faujia Umasugi

Institutions
(a) Faculty of Social Science, Universitas Muhammadiyah Maluku Utara, Ternate, Indonesia
E-mail: saifuldeni[at]ummu.ac.id

Abstract
The study idea due to a cooperative agreement on tourism villages development implemented in Bobanehena tourist village. The study purpose was to analyze how the Indonesian village and tourism ministry cooperative agreement implemented. The analysis method uses qualitative descriptive. Data obtained from interview and documentation. Implementation criteria using Edward III theory that is; communication, resources, disposition, and bureaucratic structure. The results found that there was excellent communication between central, regional, and village governments. Besides, the Bobanehena society support who warmly welcomed the tourism development program in their village and the most crucial thing is sufficient funding sources in tourism developing process supporting facilities. Meanwhile, there is a positive attitude that supports implementation success. Following, the fulfillment of standard operation procedure (SOP) by Bobanehena tourist village from central government. The tourist villages development through community empowerment, increasing tourist visits number, destinations development using attractions, amenities and visible accessibility, and increasing people income

Keywords
Tourism Village Development; Bobanehena

Topic
Civil Engineering

Link: https://ifory.id/abstract/ZhbmLtvjR64F

Corresponding Author
Ahmad Baihaqi

Institutions
a) Department of Civil Engineering, Bandung State Polytechnic, Bandung 40012, Indonesia
*h.muchtar[at]polban.ac.id
*ahmadbaihaqiab79[at]gmail.com

Abstract
The potential of bamboo as one of the materials that have a high tensile strength of parallel fibres is expected to be an alternative material to replace steel reinforcement. It is very feasible to use because bamboo is a renewable resource, cheap, easily cultivated, relatively fast growth, and the use of bamboo can play an important role as a first step in realizing savings of renewable resource. This research will develop bamboo as reinforcement which is applied to the structure of reinforced concrete beams by making modifications that utilize as much as possible the strongest part of bamboo, namely on the skin. The specimens were designed in the form of reinforced concrete blocks with dimensions of 200 x 400 x 1700 mm, with 2 bars of compressive reinforcement and pulling 3 D13 rods while imperfectly shaped bamboo stirrups with dimensions of 12 x 12 mm. In the modification made on bamboo reinforcement, there are 2 types of reinforcement, namely bamboo reinforcement using 1-inch screw nails and bamboo reinforcement using 1½ inch screw nails, while the distance between screw nails is taken at 75 mm. Reinforcement area there is 4 strain gauge.

Keywords
Bamboo; Bamboo Reinforcement; Concrete Beams; Shear Test

Topic
Civil Engineering

Link: https://ifory.id/abstract/MuPVaeDZRG4X

Corresponding Author
Zulmahdi Darwis

Institutions
University of Sultan Ageng Tirtayasa

Abstract
The use of laminated bamboo beams to be an alternative as one of the elements of building materials. Techniques such laminates can be used to form the building materials used as construction materials in large sizes. Previous studies have extensively covered the beam strength of laminated bamboo, type and pattern collapse crack. Some testing of the shear strength with the use of adhesive labur 60 MDGL, resulting in partial fracture or shear fracture between bamboo material and not occur in the adhesive. This research is directed to find out the effect of variation within the stake on the block against the shear strength of laminated bamboo. Comparison between high beam size and the width is two to one size (120 mm x 60 mm). Further tested the strength of the beam to the shear capacity with four variations within the stake is fox, Ligno and Rajawali. For laminated bamboo using bamboo outer skin on the surface of the beam as well as the use of adhesives labur 50 MDGL. The results showed that there was no significant difference in shear strengths between the four variations within the stake. Beam strength is highest test object 50

Keywords
bamboo, laminated, adhesive

Topic
Civil Engineering

Link: https://ifory.id/abstract/wX9AzaVTnkuK

Corresponding Author
vicario valentinus rogo anthony

Institutions
University of Indonesia
Depok, Jawa Barat

Abstract
Construction projects have been identified as one of the most difficult projects to succeed, because they need to lead people effectively to achieve the success of an organization. The lack of influential leaders and the relationship management with team members and stakeholders makes productivity in construction projects is very low, and the emergence of various types of management deviations and project failures in the construction sector have emphasized the needs effective leaders to effectively manage projects and team members. Thus, it is necessary to examine the effect of transformational leadership and soft skills in project manager for project success factors in Indonesia, by conducting a quantitative survey of construction professional minimum with supervisor position and 3 years experiences in construction industry inside Indonesia and will be processed and analyzed using the Structural Equation Modeling (SEM).

Keywords
Transformational leadership, soft skills, project manager, project success factors

Topic
Civil Engineering

Link: https://ifory.id/abstract/uZ49GPHAbMnm

Corresponding Author
Naniek Utami Handayani

Institutions
a Civil Engineering Department, Faculty of Engineering, Diponegoro University
b Industrial Engineering Department, Faculty of Engineering, Diponegoro University
c Civil Engineering, Vocational School, Diponegoro University

* naniekh[at]ft.undip.ac.id

Abstract
Supply chain is the interconnected hierarchy of supply contracts necessary to procure a built asset. On a traditional building project, design consultants are first tier suppliers, working for the client, and the contractor has a supply chain of sub-contractors and specialist suppliers. The problems in the construction industry is that the first and second tier of the supply chain sign up to impartially difficult arrangements but as the chain develops, so the contractual responsibilities decrease until suppliers at the end of the chain are often not locked in at all. The construction of the Diponegoro University Psychology building began September 29, 2017 with a target of 300 days. The deviation between the realization of project work and the planning timeline is -10.37% in the 7th month. The purpose of this study is to evaluate the supply chain process in building construction project. The Supply Chain Operation References (SCOR) is going to be applied to measures the performance of construction projects based on five material planning processes (plan) and project work schedules, material procurement (source), implementation of construction work (make), material delivery (deliver), and the return process if there is a material return (return). The Matrix (OMAX) and Traffic Light method is going to be used to assess the performance of cement and steel structure as the main material on this building project. The results of the assessment with Omax and traffic light obtained that the supply chain performance of cement material is worth 4.3 of the maximum value is 10. Supply chain performance for iron material worth 5.4 from the maximum value is 10. This shows that supply chain performance is quite good but needs repaired.

Keywords
construction supply chain, SCOR, building project

Topic
Civil Engineering

Link: https://ifory.id/abstract/MKarBLV3yqUN

Corresponding Author
Azzumar Utami

Institutions
(a*) Student of Applied Civil Engineering Master Program at State Polytechnic of Bandung. Jl. Gegerkalong Hilir, Ds.Ciwaruga, Bandung 40012. Email:
azzumarutami[at]gmail.com
(b) Faculty Staff of Applied Civil Engineering Master Program at State Polytechnic of Bandung. Jl. Gegerkalong Hilir, Ds.Ciwaruga, Bandung 40012. Email: riawan.gunadi[at]gmail.com

Abstract
The steel structure is commonly acknowledged able to return to its original strength condition. It is yet unknown whether composite structure may return to its initial condition. Test specimen on the present study consists of 8 units, each of them divided into four stud-connector bold (SP) composites beams and four UNP connector (SF) composite beams. Each of the specimen has control value by SP/020 and SF/020, and other six specimens with combustion of SP/400, SP/550, SP/700 and SF/400, SF/500, SF/700, within condition of point load for about 12 kN. The study intend to investigate composite girder of post-fire bridge element towards duration and heat temperature factors and effect of beam performance towards stud-connector and UNP connector composites. The results draw several conclusions; (1) the process of composite combustion shows that the failure on composite steel beam specimen is due to the load, burning duration and temperature which results in residual deflection, (2). Deflection test reveals the effect of temperature, load, and duration do not give significant impact to load capacity of post-combustion beam structure. (3) The tensile test on the post-combustion steel. The higher the temperature and the longer the duration, the greater the melting reduction and strain hardening.

Keywords
Combustion; temperature; composite; duration; load

Topic
Civil Engineering

Link: https://ifory.id/abstract/THPYgy3VDQZ8

Corresponding Author
Mela Damayanti

Institutions
(a) Student, Magister Terapan Rekayasa Infrastruktur, Politeknik Negeri Bandung.
Jl. gegerkalong Hilir, Ds. Ciwaruga. Bandung, 40012. Indonesia.
*simeladamayanti[at]gmail.com

(b) Lecturer, Magister Terapan Rekayasa Infrastruktur, Politeknik Negeri Bandung.
Jl. gegerkalong Hilir, Ds. Ciwaruga. Bandung, 40012. Indonesia.

(c) Lecturer, Magister Terapan Rekayasa Infrastruktur, Politeknik Negeri Bandung.
Jl. gegerkalong Hilir, Ds. Ciwaruga. Bandung, 40012. Indonesia.

Abstract
Flood is an important phenomenon which often occurs in cities recently. The Case of this paper is the flood in Dr. Junjunan Roadt which is one of high density roads in Bandung and the main road to Cipularang Toll Road. The floods height is up to 40-50cm, and the average of flood duration is abaout 30 minutes. The rainfall used for counting in this research is a return period approximately 25 years with the rainfall value of 80.1 mm. The solutions for reducing the floods is by increasing the drainage capacity as well as increasing the water infiltration to the ground. The reserach method uses the physical experimental model, using the scale mode of 1:30. The experimental results are tested through validation process using Hecr-RAS 5.0.7. Furthermore for the testing model, a scheme of two drainage streams and one river which leads to Citepus river through Box Culvert is used. The results of the testing model indicate that increasing the drainage capacity along the street is the most effective solution in decreasing the potential of floods, while applying the pourous drainage may also reduce the debit of water run off.

Keywords
Rainfall, cities flood, drainage, infiltration, Hecr-RAS 5.0.7

Topic
Civil Engineering

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

Corresponding Author
Purnawan Purnawan

Institutions
University of Andalas

Abstract
Since Grab bike and Go-jek operate using smart phone application in 2015, now this mode of transport is very popular in Indonesia. This mode of transport serves many features that most of them are needed by people. Because of the popularity, this mode of transport has spread in more 100 cities in Indonesia. Although, this transport mode is not regulated in UU No.22 Year 2009 but government can not avoid the reality that people like using this services. This research explores the potential problems on operational Grab bike and Go-jek. Survey was conducted by interviewed 100 drivers in Padang. Characteristic of drivers were explored, and operational characteristic of Go-jek and Grab Bike were identified. From the analysis it can be concluded that the driver work in Go-jek and Grab Bike because of low degree of education and could not work to good job, and other drivers are already work to other job but has low income. The potential problems that could arise is from internal and external factors. From internal factor, it is caused by the characteristic drivers it self, and from external factors, it is caused by the operational system and competition with other mode of transport. Recommendation has been developed to reduce the potential problems that could arise.

Keywords
potential problems, operational, go-jek and grab bike

Topic
Civil Engineering

Link: https://ifory.id/abstract/VZ9tjpr4qAhR

Corresponding Author
Abdul Rochim

Institutions
2,5 Universitas Islam Sultan Agung Semarang
2,3,4, Universitas PGRI Semarang

Abstract
Bamboo is an abundant material and easily available in Indonesia. In addition to having high compressive strength and tensile strength as well as ease of obtaining and low prices, bamboo is a consideration and focus in developing in the world of construction today. In this study, bamboo is used for soil stabilization, where bamboo is used in the form of fibre. This research focuses on the strength properties of various types of bamboo. The focus is to investigate the relationship between the maximum tensile strength of bamboo and the flexibility of bamboo in soil stabilization. This is very important, because bamboo fibers used for soil stabilization rely on their tensile strength rather than their compressive strength. Thus, the optimum tensile strength and flexibility of bamboo must be of particular concern. From the results of the study of the tensile strength of two types of bamboo, namely Apus Bamboo and Java Bamboo, the Apus Bamboo results were found to have a higher tensile strength of 225.57 mpa with maximum flexibility of 19.99 mm and 43.76 mpa for tensile strength of Javanese Bamboo with a level of flexibility of 10.26 mm.

Keywords
Bamboo, Tensile Strength, Soil stabilization

Topic
Civil Engineering

Link: https://ifory.id/abstract/2C9W8FP43kfK

Corresponding Author
Aghnia Darajatun

Institutions
(a) Student, Magister Terapan Rekayasa Infrastruktur, Politeknik Negeri Bandung. JL.Gegerkalong Hilir Bandung
(b)Lecturer, Magister Terapan Rekayasa Infrastruktur, Politeknik Negeri Bandung. JL.Gegerkalong Hilir Bandung
(c)Lecturer, Magister Terapan Rekayasa Infrastruktur, Politeknik Negeri Bandung. JL.Gegerkalong Hilir Bandung

Abstract
Urban floods has become a critical phenomenon recently. These are mostly caused by the fast increase of building growths. The need of mitigation of floods to save road users becomes an important aspect in urban area. This paper is to find a solution the case of flood in Pagarsih Road which was occured at 2016 with standard the rain fall cyclus for 25 years. The characteristic of Pagarsih Road floods are due to the overflow of Citepus River which lays beside the road. A kind of the road infrastructure proposed to solve the problem is a porous reservoir which functioned as the water storage of run off. The method used in this research is a simulation using a physical model as well as the manual calculation using Hec Ras. The model is to simulate the existing condition as well as the proposed solutions. The alternative solution developed is tested by providing several reservoir volumes and also by adding pourous facilities to increase the reservoir capacity. The validation test is carried out by using HECRAS-5.0.7 to achieve a certain reliable solution. The result shows that the reservoir storage capacity is the dominant parameter to mitigate the risk of floods.

Keywords
flood, reservoir, physical model, HEC RAS 5.0.7, capacity.

Topic
Civil Engineering

Link: https://ifory.id/abstract/DFpNybAgZW2V

Corresponding Author
Moch Sayid Assaury

Institutions
a)Student, Magister Terapan Rekayasa Infrastruktur, Politeknik Negeri Bandung
*limzsevensquad[at]gmail.com
b)Lecturer, Magister Terapan Rekayasa Infrastruktur, Politeknik Negeri Bandung
c)Lecturer, Magister Terapan Rekayasa Infrastruktur, Politeknik Negeri Bandung

Abstract
Side frictions along the market area of Tanjungsari often cause traffic congestion during peak hours. The traffic congestions are caused by the high frequency of side frictions decreasing the effectivity of road capacity value. This paper analyse the degree of saturation due to side frictions influencing on traffic congestion as well as providing some effective alternative solutions. The traffic congestion analysis method refers to the PKJI 2014 by considering the level of service standard. The three alternative solutions are simulated by the detouring and widening road as well as combining those alternatives. The solutions are concerned with the level of service standard for 10 years period. The analysis results shows that the most effective alternative solution is a combining solution between road widening and detouring. The other result shows that detour could solve congestion if the width of alternative road equals to the width of previous main road.The result of combining alternative shows that the level of service may achieve the category of "C" complying to the rural road standards. The degree of saturation Bandung-Sumedang segment is 0.51, whereas Sumedang-Bandung segment is 0.74. These solution achieve upto 57% reduction of traffic congestion Bandung-Sumedang section and 52% Sumedang-Bandung section.

Keywords
Traffic congestion, Road Capacity, Degree of Saturation, Side Friction

Topic
Civil Engineering

Link: https://ifory.id/abstract/F8CxtXRkBupK

Corresponding Author
Kathy Sulistianny

Institutions
a) Student, Magister Terapan Rekayasa Infrastruktur, Politeknik Negeri Bandung
*sulistiannykathy[at]gmail.com
b) Lecturer, Magister Terapan Rekayasa Infrastruktur, Politeknik Negeri Bandung

Abstract
The Construction of Antapani Flyover has caused traffic congestion. This paper is to find the solution to achieve the queuing standard allowed refering to PKJI 2014. The method of research uses the risk analysis. The analysis is focused on the two critical construction works, namely abutment and bridge wall works. The traffic congestion analysis considers the narrowing road due to construction disruption. The traffic congestion analysis was carried out by comparing the congestion of the existing construction with the construction method proposed. The three proposed alternative solutions are by the increasing road capacity, scheduling construction methods, and a combining solution those two alternatives. The results shows that the best alternative solution to reduce traffic congestion during construction is a combined solution between the increasing road capacity and scheduling construction methods. The result of alternative solution shows the decrease of queue on Terusan Jakarta road reaching up to 90% from the existing condition. The conclusion describes that the narrowing road of work zones of construction has a huge influence on traffic congestion. By this result is suggested to consider the magnitude of disturbance as well as the solution of the traffic congestion that may occured.

Keywords
Traffic Congestion, Queuing Standard, Construction Road, Antapani Flyover.

Topic
Civil Engineering

Link: https://ifory.id/abstract/H4kEKYG6T3Mt

Corresponding Author
Noer Fadhly

Institutions
Department of Civil Engineering, Engineering Faculty of Syiah Kuala University

Abstract
The spatial structure and construction of transport infrastructure in the city of Banda Aceh, which combines the development of "multi-center" and "linear-growth", the structure of service centers for urban activities there has been a shift in the role of urban service centers towards the south and east of the city of Banda Aceh, followed by an increase the growth of activity centers so that not sprawled. This has an impact on the inefficient development of transportation infrastructure with an increase in the number of vehicles 6% per year. The concept of TOD can eliminate urban sprawl, which turns urban sprawl into a compact city area. The method used is path analysis with network connectivity variables (x1),travel time(x2), travel frequency(x3) so that the equation can be obtained: Space Structure =0.52+0.20X3+0,26X2+0,10X1, the relationship with infrastructure development transportation consists from variables, diversity of public/social facilities(X1), travel frequency(X2), travel intent(x3), travel costs(x4) and travel time(x5), so that the equation is obtained, Transportation Infrastructure Development =-1,45+0,65X1+0,38X2+0,23X3+ 0,22X4+0,32X5, from the model obtained, it can be concluded that the development of transportation infrastructure with the concept of TOD is strongly influenced by the structure of space, this can be seen from the influence variables which have lower values if direct effects with the development of transportation infrastructure, but if indirect effects through the structure of space have a greater influence.

Keywords
Spatial structure, transportation infrastructure development, TOD

Topic
Civil Engineering

Link: https://ifory.id/abstract/qKdmCekxFE27

Corresponding Author
MUNIRWANSYAH MUNIRWANSYAH

Institutions
(1) Lecturer of Civil Engineering, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia.
(2) Lecturer of Urban and Regional Planning, Institute Technology of Sumatera, Bandar Lampung, 35365, Indonesia.

corresponding author email: r.munirwan[at]unsyiah.ac.id

Abstract
Banda Aceh is surrounded by the subduction of Indo-Australia and Eurasia plate which may cause the tsunami. One of it was the tsunami which occurred in Aceh on December 26th, 2004. The governments lack of preparedness for temporary evacuation sites in the high risk disaster zone caused the large number of casualties. Hence it is necessary to build evacuation facilities such as escape hill. The objective of this research is including to determine the bearing capacity of the soil subgrade below escape hill soil embankment and settlement, due to the load of the embankment height (Hcrit) and the value of the safety factor. This study is conducted in Deah Baro with the Geographic Coordinate System(GCS) 5º3345.72"N - 95º1751.34"E. The calculation method of Hcrit in this study was conducted by using Plaxis 8.2, which started from the existing site to 15.00 m or higher than Tsunami run-up wave height 12.00 m. This study uses soil parameters variation modeling by increasing the soil cohesion value (c) and soil friction angle (φ) proportionally with simulation to get stable condition by safety factor (SF) greater than 2.5. The result of this research found that the soil subgrade settlement δ=17.45 cm with SF=1.04 that is less than 2.5, which is still within in the tolerance limits and the subgrade is still able to withstand the embankment load. As the last result, the most stable condition at Hcrit =15.00 m was obtained in the soil parameter modeling with the c =1.5 kN/m2 and φ = 30º, with δ = 15.96 cm and SF= 1.33 which can be used for the escape hill design material embankment.

Keywords
Escape hill; Critical embankment height; Run up height; Soil settlement; Safety factor

Topic
Civil Engineering

Link: https://ifory.id/abstract/fQbv6ymXw8dL

Corresponding Author
Resti Meysita Pramaesti

Institutions
Departement of Civil Engineering Lecturer of Politeknik Negeri Bandung. Jl. Gegerkalong Hilir, Ds. Ciwaruga, Bandung 40012
*hendry[at]polban.ac.id

Abstract
Soil is the material on which the structure built.. Soil conditions on the site greatly affect the type of foundation used. Clay is a bad type of soil if it has poor soil properties such as high plasticity, low shear strength, high swelling, and large shrinkage potential. Soil stabilization is an effort to improve the quality of the soil by using certain materials to increase soil strength. Soil improvement by using mixture materials are mostly done to stabilize the soil. The mixing material used is Lapindo mud. A number of soil improvement techniques are offered to overcome problems in soft soil. The selection of soil improvement techniques is generally based on the formation of soil geology, soil characteristics, and costs. The stabilization used is emulsion asphalt which is locked of 8% and Lapindo mud variation of 3%, 6%, 9% and 12%. The results of physical and mechanical properties on soil material with stabilization of Lapindo mud and emulsion asphalt were obtained that the specific gravity increased by about 68%, with the density value of 16% and the dry weight content of 6%. In the compressive strength testing, the more Lapindo mud mixture, the less compressive strength (qu) value.

Keywords
Lapindo Mud; Emulsion Asphalt; Clay; Stabilization; Compressive Strength.

Topic
Civil Engineering

Link: https://ifory.id/abstract/ebMPyARka8nZ

Corresponding Author
Sulwan Permana

Institutions
Department of Civil Engineering, Sekolah Tinggi Teknologi Garut, Jl. Mayor Syamsu 1, Garut 44151, Indonesia
sulwanpermana[at]sttgarut.ac.id

Abstract
The Availability of water for irrigation is very important in the sustainability of crops. One of the main water sources to maintain and even increase yields is the river. Mount Galunggung has many sources of water. Cibanjaran River is one of the rivers that originates on Galunggung mountain used to irrigate an area of 595 ha of rice fields. At present, the river has undergone silting due to sand mining activities next to the weir. The purpose of this study is to determine the effectiveness of the available discharges in the river in meeting the needs of the rice fields that are due to river sedimentation. Available data processing methods are used to analyze the availability and needs of water. Planting plan in November, water requirements in the rice fields are 1.5 lt /sec/ ha. The available discharge is not able to meet the needs of 595 ha of rice fields. River sedimentation due to sand mining upstream affect the availability of water because a lot of water overflows above the spillway so that it cannot be utilized. The use of a group system and scheduling water supply provides the right solution in the distribution of water.

Keywords
River; Discharge; Sedimentation

Topic
Civil Engineering

Link: https://ifory.id/abstract/PaEXcnHbkFv9

Corresponding Author
Rezqi Malia

Institutions
Student Magister Civil Engineering of Syiah Kuala University

Abstract
Simpang Tujuh Ulee Kareng is one of intersection with high vehicle volume. The increase in V/C ratio every year starts from 2016, 2017, and 2018, each was 0.301, 0.316 and 0.322, but each was 21,909 vehicles, 20,950 vehicles, and 21,896 vehicles. The intersection will be calculated by using SIDRA Intersection, and then it will merger of intersection. In this case, it will change the route for flow rate. The calculate is in unsignalized and signalized. Furthermore, we will compare after estimate all of its. After estimating with this method, it has level of service for existing conditions which has seven road segments and the level of service after merger of intersections will be four road segments unsignalized or signalized. The results that will hope are the level of service and sensitivity.

Keywords
SIDRA Intersection, unsignalized, signalized, seven road segments, four road segments.

Topic
Civil Engineering

Link: https://ifory.id/abstract/2CjvzcDEpwRG

Corresponding Author
Dewi Yustiarini

Institutions
(1) UPI and Student at Graduate School of ITB
(2) FTSL, ITB
(3), (4) UPI

Abstract
Good governance is generally characterized by the application of the principles of transparency, participation and accountability as the starting point. This principle is known as the principle of Good Governance which regulates the relationship between government, society and the business sector (private). The initiative to select providers of electronic construction services (the Construction Services Act) is expected to be an answer to transparency and accountability. PP No.16 / 2018 specifically discusses the procurement of goods / services electronically which is managed by LKPP by developing SPSE. LPSE provides accessible information containing package code, package name, HPS package value, etc. The project stage and the contract stage that must be disclosed according to CoST are not all presented by LPSE. This study aims to identify transparency and accountability in the selection of construction service providers based on the legal perspective of construction services. Secondary data collection through legislation, regulations related to the selection of construction service providers. The results of the study are presented in the form of a model of transparency and accountability in the selection of construction service providers.

Keywords
transparancy, accountability, selection, construction

Topic
Civil Engineering

Link: https://ifory.id/abstract/4QPhDtrdfF6n

Corresponding Author
Desy Widya Astuti

Institutions
School of Strategic and Global Studies, Universitas Indonesia, Indonesia; and Universite de Technologie de Compiegne, France

Abstract
Depok City as one of the satellite cities has developed both in terms of population, social, economic and environment. The high mobility of commuter line passengers is influenced by the pattern of passenger travel using various modes of transportation such as: public transportation, private transportation online transportation, non-motorized vehicles or walking. The analysis used is the multinomial logistic regression method by observing the socio-economic characteristics of passengers and the travel characteristics of commuter line passengers. The results of the study suggest that the behavior of passengers to the station (access mode) is influenced by transport costs. So the choice of the most used transportation modes will have an impact on the arrangement of facilities at Depok City stations.

Keywords
travel behavior, passenger, station

Topic
Civil Engineering

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

Corresponding Author
Amelia Hayati

Institutions
School of Architecture, Planning and Policy Development,
Institute Technology Bandung

Abstract
The Millennial Situation and Condition are now changing the lifestyles of the urban societies, especially for women. It is also changing their travel behavior to do their daily activities to meet their family needs. Including in The Great Metropolitan Bandung Area, the urban women have high demand for their daily journey and tend to increase. By the theme of Gender Mainstream philosophy, urban women have the freedom to get their accessibility of going anywhere with their own transportation modes, including non-working urban women or as housewives in the region of Bandung. As WRI (2015) said that was more than 50% of womens mobility have a complex daily trip to meet their needs by doing their daily activities. It was done to meet the needs of family and home care in the terms of rising familys welfare. While less than 60% of mens travel behavior have a simple trip. This kind of condition is very interesting to be analyzed, especially in The Great Metropolitan Bandung Area. This study explains how complex the daily travel behavior of non-working urban women and as housewives with activities based approach that were done outdoor in a week. The quantitative data that is performed by socioeconomic and household demographic variables serve as the basis to measure the independent variables affecting family welfare, as well as the type, time, and duration of each daily activities and daily traveling data of non-working urban women. Using Clustering Methods approach to describe the width of research area, we could find the differences of models by Regression Analysis. So, we have 3 kinds of Regression Models to figure out the each of cluster from 3 Clusters that we find by Clustering Method in The Great Metropolitan Bandung Area. The result of this study could be used to make a change of city transportation policy and also to analyze the economic potential area by the models for the government officers and the business owner to increase their profit. By the regression models result, It could be used to estimate many variables in the future to increase the economic growth of the City from the transportation by users perspective.

Keywords
travel behavior, daily activities, accessibility, Clustering Method, The Great Metropolitan Bandung.

Topic
Civil Engineering

Link: https://ifory.id/abstract/vqMK2Xy3kRGN

Corresponding Author
Anita Setyowati Srie Gunarti

Institutions
a) Department of Civil Engineering, Universitas Islam 45, Jl. Cut Meutia No. 83, Bekasi, Indonesia
* anita_ft[at]unismabekasi.ac.id
b) Department of Accounting Information Systems, Universitas Bina Sarana Informatika, Jl. Banten No. 1, Karangpawitan, Karawang Barat, Indonesia

Abstract
The need to improve the subgrade of a highway becomes urgent when the vehicle load exceeds the carrying capacity of the soil. Industrial waste, that increase every day, was proposed in this study as an additive or stabilizer to improve the carrying capacity of the subgrade. Testing was done through laboratory experiments of the mixing original soil with Silica Sand waste and Dust Sand Foundry waste in certain compositions. To test the mechanical properties, the Unconfined Compression Strength Test based on ASTM standards was conducted. The unconfined compression strength (qu) value of the original soil was 0.289 kg/cm2. The highest qu value was shown in the composition of the soil mixture with 2.5% SS and 7.5% DSF which was 0.347 kg/cm2. The qu value increased by 20.07% from the qu value of the original soil, and showed a mechanical improvement in stabilizing soil.

Keywords
Silica Sand, waste, Dust Sand Foundry, Soil, Unconfined Compressive Strength

Topic
Civil Engineering

Link: https://ifory.id/abstract/BbxR687fUKup

Corresponding Author
Enden Mina

Institutions
Sultan Ageng Tirtayasa University

Abstract
The condition of road access as a means of transportation needs to be considered because it affect the smoothness of vehicles passing over it. Road construction is not always on a good subgrade, there is possibility of being built on subgrade which has a low soil bearing capacity. If subgrade soil had low bearing capacity, the pavement will suffer damage such as holes and bumps. One of the parameters to find out the soil bearing capacity (soil strength)for subgrade is by Californian Bearing Ratio testing. Soil stabilization is one of some treatments to improve bearing capacity of soil through adding one or more material admixtures to the soil. This study aims to determine the effect of steel slag and fly ash admixture to the soil bearing capacity parameters such CBR value and its effect on soil physical properties. Soil samples are taken from location of Kadusentar Village Road Medong Village Mekarjaya Subdistrict Pandeglang District. The classification of soil using Unified Soil Classification System (USCS). The methode of stabilization of soil using variation of prosentase admixture 20% of fly ash and mixed with steel slag 0%, 10%, 20% and 30% from total weight of soil. Those samples are preservated for 0 day, 3 days, and 7 days then tested using CBR laboratory test apparatus. Based on the USCS, the classification of original soil sample in the area of study can be included as MH group, a non-organic clay soil with high plasticiy where its plasticity index value were 24,59%. The CBR laboratory test result showed that for variation of 20% fly ash and 20% steel slag with 7 days preservated give the optimum value of CBR increases from 3,524% to 26.14%. the highest CBR value of this mixture can be categorized as good classification. Plasticity index value decreased became 4.57 % which it can be categorized as low plasticity. Based on those results above it can be concluded that the addition of admixture combination of fly ash and steel slag can increase the CBR value and decrease the plasticity index value which is good for soil stabilization.

Keywords
Stabilization, Fly Ash, Steel Slag, CBR.

Topic
Civil Engineering

Link: https://ifory.id/abstract/bBfMEnQc9J7D