scholarly journals Emission inventory of HC and CO of heavy construction equipment by using NONROAD engine modelling for toll road project in Indonesia

2020 ◽  
Author(s):  
Apif M. Hajji ◽  
Bambang Supriyanto ◽  
Aisyah Larasati
2018 ◽  
Vol 1 (1) ◽  
pp. 1136-1139
Author(s):  
Niyazi Bilim ◽  
Bilgehan Kekec ◽  
Atiye Bilim

Equipment-related occupational accidents are very higher when compared to all other type occupational accidents in the worldwide. Various types and styles of many equipment are used in construction industries (construction and mining). This equipment are usually huge and heavy, so the consequences of accidents are severe. Occupational accidents related this equipment might occur due to operating faulty, carelessly and unserviceably. In this study, the causes of occupational accidents related with heavy equipment in construction workplaces are presented and cause-and-effect relationships of occupational accidents are investigated based on the statistics. Heavy equipment safety types are analysed for incident prevention by statistics. In addition, the detailed information are presented about the precautions to prevent such accidents. As a result, all stakeholders should pay attention to the use of new security technologies and to reduce human default to prevent workplace injuries depending on the equipment.


2020 ◽  
Vol 19 (1) ◽  
pp. 87-98
Author(s):  
Agung Budi Broto ◽  
Dul Azis Mei Maulana

Many parties are involved in a construction project, so in deciding a method of implementing the box girder erection many criteria are taken into consideration. Consequently, decision making is not easy for decision makers. A simple, frequently-used, and popular method for decision making is Fuzzy-Analytical Hierarchy Process (F-AHP) which is designed to overcome the problem of multi criteria decision making (MCDM) in the subjective assessment process. This study aims to obtain the correct method of implementing the box girder erection to be used. Based on previous research, the criteria for determining box girder erection method are the criteria for job risk, work quality, implementation time, implementation process, work safety, and work costs. The alternatives compared are the tandem crane method and the launching gantry method. The data in this study were collected through questionnaires distributed to the expert parties involved in Jakarta - Cikampek II Elevated Toll Road Project. F-AHP analysis is based on the weighting  of quantitative criteria as a result of normalized calculations and qualitative criteria from the results of the respondents questionnaires which were then made pairwise comparisons assisted by Microsoft Excel software. The results of the analysis show that the occupational safety criteria are the most influential criteria with a weight of 0.454, then followed by job risk criteria (0.169), implementation time (0.119), work quality (0.114), implementation process (0.084), and work costs (0.061). The most appropriate method used in the work of the box girder erection at Jakarta - Cikampek II Elevated Toll Road Project is a launching gantry method with a value of 0.597, while the tandem crane method has a value of 0.403.


2018 ◽  
Vol 159 ◽  
pp. 01016 ◽  
Author(s):  
Randika Dwirahman ◽  
Yusuf Latief ◽  
Ayomi Dita Rarasati

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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