{"title":"Mode Selection Sensitivity Analysis between BRT and Private Vehicle (Case Study of Pontianak City CBD Area)","authors":"R. S. Suyono, N. Nurhayati, Wisa Yustrinisa","doi":"10.14710/mkts.v27i1.29306","DOIUrl":"https://doi.org/10.14710/mkts.v27i1.29306","url":null,"abstract":"This type of public transportation BRT mode began to be officially applied in Pontianak City to overcome traffic congestion. The problem is that many travelers prefer to use private vehicles rather than public transportation. This study aims to analyze the sensitivity of the mode selection model which explains the probability of choosing a BRT against aprivate vehicles if a BRT is presented in the Central Business District of Pontianak City. The mode selection method uses the Stated Preferences Technique in the form of a quetionnaire which is analyzed by multiple linear regression to obtain a utility equation. Based on the results of the sensitivity analysis of the mode selection model, the probability value of selecting BRT is 21,7%, if it is in conditions where the difference in the attributes offacilities and comfort (X1) is -10, this means that there are no facilities and conveniences of BRTsuch as private vehicles, thesecond is the difference in thewaiting time attribute (X2) which is 15 minutes, the third condition is the difference in travel costs attribute (X3) namely Rp 0,- and the fourth condition is the difference in travel time attribute (X4), which is 10 minutes To increase the probability of choosing a BRT to 60%, it can be done by increasing the difference between the facilities and comfort attributes to 0 (zero), which means there is no difference in facilities and comfort that BRT has with private vehicles such as the availability of air conditioning, free WIFI, clean, fragrant, having a bag storage area and others. This is because the most sensitive attributes compared to other attributes are facilities and comfort attributes.","PeriodicalId":31880,"journal":{"name":"Media Komunikasi Teknik Sipil","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48863660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andhika Ajengtyas Setorini, J. Hatmoko, B. H. Setiadji
{"title":"Evaluation of Cost Effectiveness of Performance Based Contract for National Road Improvement and Maintenance Projects","authors":"Andhika Ajengtyas Setorini, J. Hatmoko, B. H. Setiadji","doi":"10.14710/mkts.v27i1.33599","DOIUrl":"https://doi.org/10.14710/mkts.v27i1.33599","url":null,"abstract":"As an effort to maintain and improve its national road condition with a strict budget, the Government of Indonesia has implemented various types of contract in road maintenance. One of the road maintenance contract, i.e. p erformanced b ased c ontract (PBC), allows the contractor to design, build, and maintain the road and use performance measures as payment requirement. While many researches state that the PBC implementation on road maintenance may lead to cost efficiency, in Indonesia the cost efficiency is still questionable. This research is trying to answer the question by comparing actual road maintenance cost of two roads with same characteristics, while one is PBC and the other is traditional contract. The result shows that in one case PBC is cheaper than traditional contract, while the other case shows the opposite.","PeriodicalId":31880,"journal":{"name":"Media Komunikasi Teknik Sipil","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67038655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Barriers to the Implementation of Sustainable Construction: Government Perspective","authors":"D. Willar, B. Trigunarsyah","doi":"10.14710/mkts.v27i1.33764","DOIUrl":"https://doi.org/10.14710/mkts.v27i1.33764","url":null,"abstract":"Sustainable construction is a way for the construction industry to achieve sustainable development by considering social, economic, environmental, and cultural issues. Policies for implementing sustainable construction in infrastructure delivery are still not clearly understood, resulting in challenging implementation by planners and contractors. This research study identifies the barriers to implementing sustainable construction in developing infrastructure projects in Bina Marga, Cipta Karya, Sumber Daya Air, and Perumahan Permukiman sectors in North Sulawesi Province. Data collection using semi-structured interviews involved 23 informants from these four sectors. The results of the study found that the barriers evenly occur throughout the life cycle of an infrastructure project in four sectors, namely: (1) the programming phase related to strategic planning documents and identification of barriers, (2) the technical planning phase related to technical understanding and competence service providers, (3) construction implementation phase related to expert consultants, service provider competence, and green construction technology, (4) utilization phase related to socialization, promotion, and education, (5) demolition phase related to mechanisms and availability of resources. The study results provide academic-based information for the government to minimize barriers to implementing sustainable construction policies throughout Indonesia.","PeriodicalId":31880,"journal":{"name":"Media Komunikasi Teknik Sipil","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49247894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kukuh Cahya Adi Putra, Y. A. Priastiwi, S. Sukamta
{"title":"Trajectory Stress and Angle Values Correlation to Deep Beams Dimensional Ratio","authors":"Kukuh Cahya Adi Putra, Y. A. Priastiwi, S. Sukamta","doi":"10.14710/mkts.v27i1.30591","DOIUrl":"https://doi.org/10.14710/mkts.v27i1.30591","url":null,"abstract":"SNI 2847-2019 defines a deep beam as a structural component that is loaded on one side and supported on the opposite face, allowing compressive components such as struts to form between the loads and supports. It is also stated that the ratio of the net span of the beam to the height of the beam must match the standards (l/h) 4. The goal of this investigation is to determine the value of the stress’s correlation and the trajectory angle to the ratio of the l/beam h's with a span of 4 meters when subjected to a point load of P = 2,000 kN. In the analysis procedure, SAP v.14 is being used to determine the value of stresses and trajectory angles of variations l/h. The results obtained from this study is ratio of l / h of deep beam affects the magnitude of the stress and the angle of the trajectory. Increasingly the width of the beam has no significant effect on the resulting trajectory angle.","PeriodicalId":31880,"journal":{"name":"Media Komunikasi Teknik Sipil","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46075763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Commuters' Behavior in Response to the Policy of Conversion of Paratransit to City Buses in the Bandung City","authors":"Dwi Prasetyanto, M. Rizki, W. Gardjito","doi":"10.14710/mkts.v27i1.29223","DOIUrl":"https://doi.org/10.14710/mkts.v27i1.29223","url":null,"abstract":"Bandung City Government plans to improve their bus services which are expected to decline traffic congestion,reduce air pollution, and improve road safety. One of the efforts is to implement the conversion policy of minibus/paratransit to public bus. The purpose of this study is to analyze people's behavior related for theconversion policy above and their intentions to use it. For that purpose, the analysis performed with the datathat obtained by interviewing public transport users in Bandung City. The method used in this research isTheory of Planned Behavior. It is found that, the effect of evaluation outcomes, motivation to comply andperceived power proven to be significant on the behavioral intention to shift the use of public transportationfrom mini public buses to city buses. The contribution of evaluation outcomes influences the highest comparedto other factors, which is 32.36%, this shows that the evaluation of the performance of city bus services is themost dominant factor in shaping the behavioral intention to use city bus. Positive perception towards theconversion policy is in the high number, however, the intentions to shift to public transport should be supportedby ensuring high quality bus services.","PeriodicalId":31880,"journal":{"name":"Media Komunikasi Teknik Sipil","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67038647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wira Rante Paganggi, A. Makmur, Rachmansyah Rachmansyah
{"title":"Effect of Addition Polypropylene Fiber on Compressive Strength and Permeability Values in Porous Concrete","authors":"Wira Rante Paganggi, A. Makmur, Rachmansyah Rachmansyah","doi":"10.14710/mkts.v27i1.31536","DOIUrl":"https://doi.org/10.14710/mkts.v27i1.31536","url":null,"abstract":"The infrastructure growth has an impact on reducing green areas, which will be followed by reduced water catchment areas. Porous concrete is one of the porous materials that can be used on a pedestrian walk, which is able to drain water. The porous concrete has a limitation strength. This research aims to determine the effect of using various content of chemical additive and polypropylene fibers for porous concrete mixtures related to the compressive strength and permeability values. This experimental method referring to ACI 522R-10 Standard. That specimens using chemical additives and variations of polypropylene fibers: 0.05%, 0.1%, 0.15%, 0.2%, and 0.25% by weight of cement. The results showed that the specimen which had the highest compressive strength was 16.9 MPa, which was added 0.25% polypropylene fiber. The addition of polypropylene fibers increases the compressive strength value by 5.6%. Based on the compressive strength and permeability graphs, it can be estimated that the optimal content of polypropylene fiber is 0.17% by weight of cement.","PeriodicalId":31880,"journal":{"name":"Media Komunikasi Teknik Sipil","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45696595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Use of Ground Motion Parameters to identify the Liquefaction during a Strong Earthquake in Northern Thailand","authors":"L. Z. Mase","doi":"10.14710/mkts.v27i1.29218","DOIUrl":"https://doi.org/10.14710/mkts.v27i1.29218","url":null,"abstract":"This paper presents a ground response analysis to simulate the liquefaction phenomenon during the 2011 Tarlay Earthquake in northern Thailand. The site investigation data and geophysical measurements on 7 sites in northern Thailand were collected. The multi-springs element model was implemented in finite element ground response analysis. Several parameters, such as peak ground acceleration, peak ground velocity, amplification factor, excess pore pressure ratio, were observed. Furthermore, the correlation from the ground motion parameters was generated to estimate liquefaction potential, which was represented by excess pore pressure ratio. The result showed that the excess pore pressure ratio was relatively well correlated with several ground parameters, such as amplification factor, velocity-acceleration ratio, and factor of safety against liquefaction. The results could be also used for the engineering practice in predicting liquefaction potential in Northern Thailand.","PeriodicalId":31880,"journal":{"name":"Media Komunikasi Teknik Sipil","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48649691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Y. Adi, Safira Yulia Rizqi, Sie Alexander Patrick Subagyo, A. Han
{"title":"The Effect of Slag Cement Substitution on the Water – cement Ratio , Setting Time and Compression Strength of Mortar at the age of 14 and 28 Days","authors":"R. Y. Adi, Safira Yulia Rizqi, Sie Alexander Patrick Subagyo, A. Han","doi":"10.14710/mkts.v26i2.31691","DOIUrl":"https://doi.org/10.14710/mkts.v26i2.31691","url":null,"abstract":"The use of industrial waste as a component of nowadays building material has become of major importance due to the underlining of environmental and sustainability issues. Among these materials is Ground Granulated Blast Furnace Slag (GGBFS), often referred to as slag-cement. The material is a residue produced during the steel refining process. The cementitious nature of the product makes it most suitable for ordinary Portland cement (PC) substitution. However, the behavior of this slag-cement in terms of development time and strength has not been defined in great details. In the construction industry, time is of major importance, a prolonged hydration process could delay the overall process. This research work focused on the setting time and strength response of slag-cement in mortar. The ratio of mortar constituent of cement-to-sand was 1 : 3. The percentage of slag-cement substitute to PC was 0%, 25%, 50% and 75% to the cement weight. The compressive strength was tested at the age of 14 days and 28 days. The results of the analysis showed that at a 25% slag-cement substitution a very significant increase in strength was shown. The increase was more pronounced at the age of 28 days when compared to 14 days and recorded to be 31.90%. As for the 50% and 75% slag-cement substitution, no significant increase in strength improvement was noticed. The test results showed a 2.66% enhancement for the 50% slag- cement substitution and a 2.45% increase for a 75% slag-cement replacement. The study also showed that slag-cement required a higher water-cement factor for the normal consistency","PeriodicalId":31880,"journal":{"name":"Media Komunikasi Teknik Sipil","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67038581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Ulfiana, Y. E. Windarto, N. Bashit, N. S. Ristianti
{"title":"Analysis of Flood Vulnerability as a Support to Water Sensitive Urban Design Planning in Klaten Regency","authors":"D. Ulfiana, Y. E. Windarto, N. Bashit, N. S. Ristianti","doi":"10.14710/mkts.v26i2.31929","DOIUrl":"https://doi.org/10.14710/mkts.v26i2.31929","url":null,"abstract":"Klaten Regency is one of the regions that has a high level of flood vulnerability. The area of Klaten Regency which is huge and has diverse characteristics makes it difficult to determine an appropriate flood management model. Water Sensitive Urban Design (WSUD) is a model that focuses on handling water management problems with environmentally friendly infrastructure. Therefore, an analysis is carried out to determine the level of flood vulnerability and factors causing flooding to plan a WSUD design that is suitable for each sub-districts of Klaten Regency. The Analytical Hierarchy Process (AHP) and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) methods are used to help the analysis. Aspects used as criteria are rainfall, slope, soil type, geological conditions, and land use. Based on the analysis, it could be concluded that Klaten Regency has two sub-districts with high flood hazard category, 21 sub-districts with medium category, and three sub-districts with low category. Bayat and Cawas are sub-districts that have a high level of flood vulnerability category. Meanwhile, Kemalang, Karangnongko and Polanharjo are districts with a low level of flood vulnerability category. The main factors causing flooding in Klaten Regency are slope and land use.","PeriodicalId":31880,"journal":{"name":"Media Komunikasi Teknik Sipil","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67038588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stakeholder Power-Interest Analysis of disaster insurance for public infrastructure in Semarang City","authors":"J. Hatmoko, Dita Mentari Putri, F. Hermawan","doi":"10.14710/mkts.v26i2.32086","DOIUrl":"https://doi.org/10.14710/mkts.v26i2.32086","url":null,"abstract":"The use of disaster insurance for public infrastructure is still uncommon in Indonesia, including in Semarang. The success of the adoption of disaster insurance for public infrastructure is inevitably dependent on the acceptance of stakeholders. The aim of this study is to analyse the power and interest of stakeholders towards the use of disaster insurance for public infrastructure in Semarang. Data was collected via interviews and focussed group discussions with stakeholders of Semarang government officials, asset managers, users, etc. The power-interest grid of stakeholders divides the stakeholders based on their levels of power and interests, resulting in four categories, i.e. players, subjects, crowds, and context setters. This research identified the players are the Mayor, Regional Disaster Management Authority, and Regional Financial and Asset Management Authority (5.5%); the subjects category includes The Public Works Department of Human Settlements and Highways, Public Works Department, Trade Department, majority Public Health Center (40.7%); the crowds are Education Department and majority public schools (53.7%); and no context setters (0%). This study found that low trust in the insurer is a major factor causing a lack of interest in the use of insurance. The results of this study are valuable to understand the stakeholder map of Semarang city based on power and interest aspects, and serve as a basis for developing disaster insurance adoption strategies for public infrastructure.","PeriodicalId":31880,"journal":{"name":"Media Komunikasi Teknik Sipil","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67038599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}