scholarly journals RISK ANALYSIS OF FOUNDATION WORK IN CONSTRUCTION PROJECTS OF 6 (SIX) TOLL ROADS IN THE CITY TO IMPROVE TIME PERFORMANCE

Neutron ◽  
2020 ◽  
Vol 19 (2) ◽  
pp. 41-50
Author(s):  
Chandra Fertilia Novika ◽  
Ika Anggraeni Elfera
Keyword(s):  
Inner City ◽  
Traffic Congestion ◽  
Construction Projects ◽  
Study Data ◽  
Provincial Government ◽  
Risk Category ◽  
Toll Roads ◽  
Toll Road ◽  
Time Performance ◽  
Expert Validation

The Jakarta inner ring toll road is a toll road that surrounds the inner city of Jakarta. Due to the dense number of vehicles and traffic congestion on the existing inner-city toll roads, the DKI Jakarta Provincial Government plans to increase the number of inner-city toll roads to 6 sections. The project development begins with Section 1A, namely from Kelapa Gading - Pulo Gebang. At present development is still at the stage of foundation work where progress in October 2019 only reached 80.97% of the target of 100%. The work has been delayed and has been extended 2 times. From these problems, this study was conducted to analyze the high risks that affect the time performance of foundation work and corrective and preventive actions. In this study data collection was carried out by distributing 4-step questionnaires, namely expert validation, pilot survey, respondents, and final expert validation. Risk ranking is analyzed using MS. Excel is based on a probability and impact matrix table that aims to determine variables that have a high level of risk. From the results of data analysis, 4 variables fall into the high-risk category, namely the problem of land acquisition, work location is not ready, work drawings are not ready, and the core staff of the project is less competent. The results of expert recommendations for the four variables can be stated in preventive and corrective actions.

scholarly journals SIMULASI ANTRIAN PELAYANAN PADA GARDU TOL BINJAI

2019 ◽  
Author(s):  
Akim Manaor Hara Pardede
Keyword(s):  
Metropolitan Area ◽  
Traffic Congestion ◽  
Service Providers ◽  
Transportation System ◽  
Good Choice ◽  
Queuing System ◽  
Toll Roads ◽  
Toll Road ◽  
Traffic Conditions ◽  
Toll Station

Services performed by service providers must be maximized, so that customers get satisfaction in receiving services. The thing that affects service maximally is the limited available resources, so more research is needed about the queuing system that has gone so far. Binjai City already has a toll road and has been operating since 2018, so far the use of toll roads is still running smoothly, but it should be noted whether this toll road has been operating optimally or not optimally. Toll roads are an important part of the transportation system, toll roads not only function as a good choice to avoid traffic congestion, but also affect all traffic conditions for the metropolitan area. Congestion is currently not a priority issue on the Binjai-Medan toll road. From the results of the research conducted, information is obtained that the number of toll gates is still appropriate, namely 3 Substations, Probability of busy Substation = <1 means that for now the Toll Gate will not be long queues at the time of normal everyday conditions, and further analysis is needed in the following years, so that the possibility of a Toll Station can always be maximized.

scholarly journals ANALISIS RISIKO PELAKSANAAN PEMBANGUNAN JALAN TOL BENOA – BANDARA – NUSA DUA

2015 ◽  
Author(s):  
Ni Putu Mega Astiti ◽  
I N. Norken ◽  
IBN. Purbawijaya
Keyword(s):  
Risk Mitigation ◽  
Road Construction ◽  
Risk Category ◽  
Toll Roads ◽  
Negative Consequences ◽  
Implementation Phase ◽  
Toll Road ◽  
Road Project ◽  
Risk Handling ◽  
The Cost

Benoa-Bandara-Nusa Dua toll road project is the first toll road project in Bali. This highway connects region Nusa Dua with Benoa Harbour area. Construction of toll roads-Benoa-Bandara-Nusa Dua is claimed as the fastest highway development in Indonesia as completed within 14 months. With time so short that the implementation of development it is necessary to research on the risks that arise in the implementation phase of the construction of the toll road The existence of the risks that arise in the implementation of toll road construction will directly impact the cost and development time. It is necessary in order to study the risks that might occur notably members of the dominant risk category can be used as a basis for decision making by the parties concerned to overcome the negative consequences that occur in the construction of toll roads. The research was conducted by means of interviews with various parties and has expert competence in the implementation of toll road construction to determine how the possibility (likelihood) against a variety of risks and to determine how much influences (Consequences) risk. The number of risks identified in this study was as many as 54 risks. The distribution of revenue risk of the project is a total of 18 (33.33%) classified as unacceptable risk, 25 (46.29%) classified as undesirable risk, 9 (16.67%) classified as acceptable risk, 2 (3.7%) classified as negligible risk. Handling risk (risk mitigation) is only performed on the dominant risks are risks that are categorized as unacceptable and undesirable. Risk mitigation conducted on a total of 18 risk unacceptable risk. 25 risk mitigation undesirable risk. Based on the results of this mitigation is then performed risk management ownership (ownership of risk) to the parties involved in the implementation of toll road construction project.

Quantitative appraisal of cost and time performance of construction projects in public and private universities in Osun State, Nigeria

2017 ◽  
Vol 15 (5) ◽  
pp. 619-634 ◽  
Author(s):  
Nathaniel Ayinde Olatunde ◽  
Oluwaseyi Olalekan Alao
Keyword(s):  
Construction Projects ◽  
Private Universities ◽  
Sampling Technique ◽  
Study Data ◽  
Public And Private ◽  
Content Type ◽  
Time Performance ◽  
Significant Difference ◽  
The Cost ◽  
University Settings

Purpose The purpose of this paper is to compare the cost and time performance of construction projects in public and private universities in Osun State, Nigeria. Design/methodology/approach Purposive sampling technique was adopted to select four universities (two public and two private) used for the study. Archival data on 40 completed construction projects (ten from each university) was used in the study. Data were analysed with percentile and t-test. Findings The study showed that only 35 per cent of the construction projects in public and 10 per cent of those in private universities were completed at the estimated cost. There were no construction projects completed within the planned time in public universities, but 20 per cent were completed within the planned time in private universities. The t-test showed there is no significant difference in performance of construction projects in public and private universities in Nigeria. The study concluded that time performance of public and private universities in Nigeria was still below acceptable international best practices. Research limitations/implications The findings of this study are limited to universities’ construction projects and may be of little application to other construction projects outside university settings. Practical implications It is recommended that construction stakeholders be more proactive in ensuring that significant improvement is achieved in cost and time performance of construction projects both in public and private universities; the clients need to be more detailed in their briefs and requirements, the designers (architects and engineers) need to be more precise and avoid varying their designs, the quantity surveyors should use their professional competency in cost engineering adequately and the contractor should avoid spurious claims that result in increase in construction cost and time so that performance of construction projects can be improved. Originality/value The study is an attempt to compare cost and time performance of construction projects in public and private universities in Osun State, Nigeria.

scholarly journals INVESTMENT RISK OF SOLO-NGAWI TOLL ROAD

CI-TECH ◽  
2021 ◽  
Vol 2 (01) ◽  
pp. 18-24
Author(s):  
Zaid Dzulkarnain Zubizaretta ◽  
Rudy Hermawan Karsaman ◽  
R. Sony Sulaksono Wibowo
Keyword(s):  
Risk Analysis ◽  
Risk Level ◽  
Risk Category ◽  
Investment Risk ◽  
Toll Roads ◽  
Moderate Risk ◽  
Toll Road ◽  
Risk Probability ◽  
Land Availability ◽  
State Governance

In investing, there is definitely a risk, as well as the concession of toll roads. Risk analysis is used to anticipate losses due to an element of risk at each investment stage. The results of the analysis show that the highest risk probability for the Solo-Ngawi toll road is land availability and the influence of weather during development and the highest risk impacts are land availability, the potential for revolution in state governance. Based on the results of the analysis, the investment risk level of the Ngawi Solo Toll Road is included in the moderate risk category, so there is a need for cooperation in risk assurance by the Insurance Agency so that the risk level can be reduced to be lower than before. 

Flexible Charge Measures Used on Toll Roads

2005 ◽  
Vol 1932 (1) ◽  
pp. 137-146 ◽  
Author(s):  
Waka Matsuda ◽  
Yukihiro Tsukada ◽  
Masahiko Kikuchi
Keyword(s):  
Traffic Safety ◽  
Traffic Congestion ◽  
General Purpose ◽  
Toll Roads ◽  
Time Zone ◽  
Safety Measures ◽  
The Road ◽  
Toll Road ◽  
Effective Use

In fiscal 2003, the Road Bureau of the Ministry of Land, Infrastructure, and Transport in Japan performed demonstration projects concerning diverse and flexible charge measures for toll roads. The goals were to promote the effective use of roads by encouraging traffic to switch from general purpose roads to toll roads, improving roadside environments, mitigating congestion, and promoting traffic safety measures. This study analyzes the results of the 22 projects. As a result of the bureau's efforts, traffic on the toll-free general purpose roads decreased and traffic on the toll roads increased, with traffic congestion in the affected areas subsequently eased. The projects that were intended to eliminate commuter congestion in regional cities were in many cases particularly effective. However, this effectiveness varied according to the setting of the toll and the interchange section, the type of vehicles involved, the discount time zone, and the locational relationship between the general road and the toll road.

scholarly journals Risk analysis and strategic planning on bridge construction works at the toll road procurement projects in Central Java Province

2018 ◽  
Vol 49 ◽  
pp. 02020
Author(s):  
Hery Suliantoro ◽  
Nurul Fitriani ◽  
Bagus Hario Setiadji
Keyword(s):  
Avoidance Response ◽  
Construction Projects ◽  
Construction Project ◽  
Weather Forecast ◽  
Development Project ◽  
Response Strategy ◽  
Bridge Construction ◽  
Risk Response ◽  
Toll Road ◽  
The Impact

Risk is a condition caused by uncertainty. Risks will occur on any construction project, including bridge construction projects. Efforts that can be taken to minimize the impact of these risks are to engage in risk management activities. This research was conducted on bridge construction work on toll road procurement project in Pejagan-Pemalang, Pemalang-Batang and Salatiga-Kertasura. The purpose of this research is to analyze the risk of bridge development project in toll road project using Risk Breakdown Structure (RBS) method and then the result as database in discussing risk response strategy. The bridge construction project has 36 risks that are divided into six groups: materials and equipment, design, human resources, finance, management, nature and environmental conditions. Bad weather risks are the higest risk and seasonal risk causing temporary work stoppages. This risk-response strategy is avoidance. Short-term avoidance response strategy is to add shift workers, install tents and add additives in the acceleration of the process of maturation of concrete. The long-term avoidance response strategy is to evaluate and rearrange the work schedule by considering the weather forecast report.

Administrative risks challenging the adoption of smart contracts in construction projects

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Asli Pelin Gurgun ◽  
Kerim Koc
Keyword(s):  
Construction Projects ◽  
Risk Mitigation ◽  
Research Question ◽  
Group Discussion ◽  
Mitigation Strategies ◽  
Risk Category ◽  
Smart Contracts ◽  
Content Type ◽  
Smart Contract ◽  
Criteria Weights

PurposeAs a remedy to usually voluminous, complicated and not easily readable construction contracts, smart contracts can be considered as an effective and alternative solution. However, the construction industry is merely known as a frontrunner for fast adoption of recent technological advancements. Numerous administrative risks challenge construction companies to implement smart contracts. To highlight this issue, this study aims to assess the administrative risks of smart contract adoption in construction projects.Design/methodology/approachA literature survey is conducted to specify administrative risks of smart contracts followed by a pilot study to ensure that the framework is suitable to the research question. The criteria weights are calculated through the fuzzy analytical hierarchy process method, followed by a sensitivity analysis based on degree of fuzziness, which supports the robustness of the developed hierarchy and stability of the results. Then, a focus group discussion (FGD) is performed to discuss the mitigation strategies for the top-level risks in each risk category.FindingsThe final framework consists of 27 sub-criteria, which are categorized under five main criteria, namely, contractual, cultural, managerial, planning and relational. The findings show that (1) regulation change, (2) lack of a driving force, (3) works not accounted in planning, (4) shortcomings of current legal arrangements and (5) lack of dispute resolution mechanism are the top five risks challenging the adoption of smart contracts in construction projects. Risk mitigation strategies based on FGD show that improvements for the semi-automated smart contract drafting are considered more practicable compared to full automation.Originality/valueThe literature is limited in terms of the adoption of smart contracts, while the topic is receiving more attention recently. To support easy prevalence of smart contracts, this study attempts the most challenging aspects of smart contract adoption.

scholarly journals Pelanggaran Kecepatan Kendaraan pada Ruas Jalan Tol Cipularang. (Hal. 39-49)

2019 ◽  
Vol 5 (1) ◽  
pp. 39
Author(s):  
Rizki Intan Mauliza ◽  
Tania Bonita Sabrina ◽  
Wahyu Maulana
Keyword(s):  
Search Method ◽  
Primary Data ◽  
Maximum Speed ◽  
Speed Limit ◽  
Toll Roads ◽  
Passenger Cars ◽  
Passenger Car ◽  
Average Speed ◽  
Toll Road ◽  
Road Speed

ABSTRAKSalah satu faktor penyebab kecelakaan yang signifikan adalah tidak sesuainya kecepatan kendaraan dengan kondisi jalan, lingkungan dan kegiatan, dalam hal ini adalah kecepatan yang terlalu tinggi. Jalan tol/jalan bebas hambatan merupakan salah satu jalan yang berpotensi memiliki banyak pelanggaran dalam kecepatan kendaraan. Batasan kecepatan jalan tol telah di atur dalam PM Hub 111/2015 yaitu 40 km/jam untuk tol dalam kota dan 60 km/jam - 100 km/jam untuk tol luar kota. Untuk memastikan kecepatan rata-rata kendaraan dan menentukan tingkat pelanggaran kendaraan yang melintasi ruas jalan tol Cipularang maka penelitian menggunakan metode pengumpulan data primer/pengamatan secara langsung. Hasil analisis secara keseluruhan didapatkan bahwa rata-rata kecepatan kendaraan mobil penumpang sebesar 88 km/jam, truk 62 km/jam dan bus 72 km/jam dengan persentasi kecepatan rata-rata untuk mobil penumpang, truk dan bus berturut-turut sebesar 43%, 5% dan 22%. Hal ini menunjukan terdapat pelanggaran batas kecepatan maksimum untuk kendaraan mobil penumpang dengan prosentase yang tinggi (lebih dari 30%) atau kecepatan rata-rata lebih dari 80 km/jam.Kata kunci: kecelakaan, batas kecepatan, jalan tol ABSTRACTOne factors of a significant accident is not according to the speed of the vehicle with the environment, environment and activities, in this case the speed is too high. Toll road / freeway is one of the roads that has many roads in the vehicle. The toll road speed limit has been set in PM Hub 111/2015, which is 40 km/hour  for city tolls and 60 km/hour  100 km/hour for out-of-city toll roads. To determine the average speed of a vehicle and determine the level of the vehicle passing through the Cipularang toll road, the study uses the primary data / direct search method. The overall analysis results are obtained that the average speed of passenger car vehicles is 88 km/hour, trucks 62 km/hour and buses 72 km/hour with the percentage of average speed for passenger cars, trucks and buses being helped-along by 43%, 5% and 22%. This shows the maximum speed limit for passenger car vehicles with a higher percentage (more than 30%) or an average speed of more than 80 km/hour.Keywords: accidents, speed limits, toll roads

scholarly journals The Effect of MSM and CD4+ Count on the Development of Cancer AIDS (AIDS-defining Cancer) and Non-cancer AIDS in the HAART Era

2019 ◽  
Vol 16 (4) ◽  
pp. 288-296
Author(s):  
Prosanta Mondal ◽  
Hyun J. Lim ◽  
OHTN Cohort Study Team
Keyword(s):  
Competing Risks ◽  
Joint Modeling ◽  
Study Data ◽  
Hiv Treatment ◽  
Cd4 Count ◽  
Survival Outcomes ◽  
Risk Category ◽  
Joint Models ◽  
Kaplan Meier ◽  
Sex With Men

Background: The HIV epidemic is increasing among Men who have Sex with Men (MSM) and the risk for AIDS defining cancer (ADC) is higher among them. Objective: To examine the effect of MSM and CD4+ count on time to cancer AIDS (ADC) and noncancer AIDS in competing risks setting in the HAART era. Method: Using Ontario HIV Treatment Network Cohort Study data, HIV-positive adults diagnosed between January 1997 and October 2012 having baseline CD4+ counts ≤ 500 cells/mm3 were evaluated. Two survival outcomes, cancer AIDS and non-cancer AIDS, were treated as competing risks. Kaplan-Meier analysis, Cox cause-specific hazards (CSH) model and joint modeling of longitudinal and survival outcomes were used. Results: Among the 822 participants, 657 (79.9%) were males; 686 (83.5%) received anti-retroviral (ARV) ever. Regarding risk category, the majority (58.5%) were men who have Sex with men (MSM). Mean age was 37.4 years (SD = 10.3). In the multivariate Cox CSH models, MSM were not associated with cancer AIDS but with non-cancer AIDS [HR = 2.92; P = 0.055, HR = 0.54; P = 0.0009, respectively]. However, in joint models of longitudinal and survival outcomes, MSM were associated with cancer AIDS but not with non-cancer AIDS [HR = 3.86; P = 0.013, HR = 0.73; P = 0.10]. CD4+ count, age, ARV ever were associated with both events in the joint models. Conclusion: This study demonstrates the importance of considering competing risks, and timedependent biomarker in the survival model. MSM have higher hazard for cancer AIDS. CD4+ count is associated with both survival outcomes.

scholarly journals Development of institutional funding model of deep discount bond and land lease on a toll road project

2018 ◽  
Vol 159 ◽  
pp. 01016 ◽  
Author(s):  
Randika Dwirahman ◽  
Yusuf Latief ◽  
Ayomi Dita Rarasati
Keyword(s):  
Corporate Finance ◽  
Success Factors ◽  
Toll Roads ◽  
State Budget ◽  
Toll Road ◽  
Funding Model ◽  
Road Project ◽  
Institutional Funding ◽  
Management Institutions ◽  
Institutional Success

Toll road is one of the most important parts of connectivity infrastructure. However, the current length of the existing toll roads is still not sufficient compared to the increasing number of vehicles in Indonesia. Nevertheless, the needs for infrastructure funding including for toll roads are not comparable to the availability of state budget. Innovations in funding schemes were required to meet such needs such as Deep Discount Bond (DDB) and Land Lease (LL). To ensure these schemes are running appropriately, an institutional funding model is needed to organize the stakeholders involved. Therefore, five institutional funding models were developed based on the conditions of the DDB issuer (project or corporate finance), LL executor [State Assets Management Institutions (LMAN) or Special Purpose Company (SPC)], and the number of SPC in the models. In addition, ten institutional success factors were identified. Data was collected using in-depth interviews consisting of three parts and analyzed using the Relative Importance Index to rank the institutional success factors found and using the Multi Criteria Analysis to choose the most effective institutional funding model. The institutional success factors that were found to have great values were those related to Government. At the same time, the most effective funding model is a corporate finance scheme, where LL is executed by LMAN, and a single SPC is used.

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