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INDONESIA
Journal of Railway Transportation and Technology
Published by Politeknik Perkeretaapian Indonesia Madiun
ISSN : 28300491     EISSN : 28306880     DOI : https://doi.org/10.37367/jrtt.v1i1
Core Subject : Economy, Science, Social, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation
The journal publishes original papers that cover but are not limited to, the following topics, Rolling Stock, Infrastructure, Energy and Environment, Signaling and communication, Operations, Strategies and Economics.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol. 1 No. 2 (2022): November" : 5 Documents clear
Behavior of Rail Ballast Layer Using Mortar Foam with LISA-FEA Aco Wahyudi Efendi; Yahya Do; Natriya Faisal Rachman
Journal of Railway Transportation and Technology Vol. 1 No. 2 (2022): November
Publisher : Politeknik Perkeretaapian Indonesia Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (601.29 KB) | DOI: 10.37367/jrtt.v1i2.8

Abstract

In the development of railroads, geosynthetics can be introduced in or under the stabilizer layer or sub ballast, foam mortar has become one of the trends in the construction sector in replacing the foundation layer as an excellent alternative. The researcher conducted a comparative analysis on railroad ballast by using a substitute for conventional railroad ballast material, namely granular material using mortar foam, conducting research on the stresses that occur and the value of the decrease that occurs in ballast using mortar foam. From the results of the analysis of this study, it was found that there was an increase in the ability of ballast with mortar foam material compared to granular material, the decrease in stress that occurred and a decrease in the deformation value in railroad construction gave an option to use conventional ballast substitutes.
A Comparison of Individual Bored Pile Bearing Capacity Using the Results of Standard Penetration Test (SPT) and Pile Driving Analysis (PDA) Test of the Railway Bridge Foundation Ayu Prativi; Puspita Dewi; Nila Sutra; Wahyu Tamtomo Adi; Chi Weijia
Journal of Railway Transportation and Technology Vol. 1 No. 2 (2022): November
Publisher : Politeknik Perkeretaapian Indonesia Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (261.395 KB) | DOI: 10.37367/jrtt.v1i2.9

Abstract

Prediction of the bearing capacity of deep foundations using analytical methods from the results of the standard Penetration Test has been carried out until now due to practical consideration. However, with the many types of empirical formulas proposed by various researchers, it is necessary to test the validity of the values predicted by the empirical formulas. During the construction stage, the bearing capacity of deep foundations can be checked using the Pile Driving Analysis (PDA) Test. This study aimed to compare the foundation bearing capacity prediction results using analytical methods of Luciano Decourt (1982), Reese and O'Neil (1999), and Building Standard Law of Japan with the results from PDA test. The comparison indicate that the analytical method of Luciano Decourt (1982) predict bearing capacity with the smallest error rate, which is 1.97% to 38.99% with safaty factor (SF) 2 to 3 on a relatively homogeneous and heterogeneous soil conditions. Prediction of bearing capacity of bored pile foundations using analytical methods O'Neil & Reese (1999) and Building Standard Law of Japan provide better performance for soil types which is dominated by cohesive soils with safety factor (SF) 2.
The Impact of Stability Factor of Train Operations to Railway Line Capacity (Kroya-Kutoarjo-Yogyakarta) Indonesia Yuwono Wiarco; Siti Malkhamah; Imam Muthohar; Luzile Mae Satur
Journal of Railway Transportation and Technology Vol. 1 No. 2 (2022): November
Publisher : Politeknik Perkeretaapian Indonesia Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (317.534 KB) | DOI: 10.37367/jrtt.v1i2.11

Abstract

Transportation is the backbone of development. It determines the economic growth of a country. Among any modes of transportation, railway is in need to be developed especially in the increasing of railway lines capacity in addition to the development of railway infrastructures, facilities, and the enhancement of rail operational. The determinant in rail operational is the stability in its operation. This stability can be seen by the punctuality of train arrival and departure, which is in accordance with the Graph Train Journey (Gapeka) and “delay” as the indicator. The study was conducted to determine the stability of railway operation and the delay of train travel as well as to identify the effect of the stability of railway operations to the capacity value of railway line. The study was conducted by collecting secondary data and conducting primary survey followed by data analysis. The results showed that the stability of rail operation for Kroya – Kutoarjo - Yogyakarta line was still low with an average delay of 15.60 minutes for double track and 21.68 minutes for single track. There was a decline in capacity when it was compared to the planned capacity or factual practical capacity at 22% on single track and 17% on double track. Further research on how to determine the cause of the instability of railway operation as input for the stability improvement would be needed in addition to the model or formulation to calculate line capacity in corresponding to the conditions in Indonesia.
An Analysis of Passengers’ Safety Risk at the Infrastructure Improvement Project of Railway Station Nanda Ahda Imron; Dian M Setiawan; Ali Oktavian Handoko; Erifendi Churniawan; Handoko Handoko; Ary Putra Iswanto
Journal of Railway Transportation and Technology Vol. 1 No. 2 (2022): November
Publisher : Politeknik Perkeretaapian Indonesia Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.792 KB) | DOI: 10.37367/jrtt.v1i2.13

Abstract

Constructing the elevated track at the Manggarai Railway Station has risk which potentially endangers the passengers’ safety due to its construction process is carried out within passengers’ activities around the railway station. This research aims to identify the hazard and risks, analyze the level and control the risk. Moreover, this study also aims to arrange the priority of serial alternative solutions regarding the handling the risk within the construction process of elevated track. This study used methods as follows: Hazard Identification, Risk Assessment, And Risk Control (HIRARC) and Analytical Hierarchy Process (AHP). In addition, data triangulation was also done by involving three respondents in keeping with to ensure the validity. The analysis of HIRARC generated 11 hazards and risks namely 6 are classified into extreme risks, 4 are rated high risk and 1 is categorized as medium risk. The method of AHP is used to analyze the alternative ways of handling the risks and to find out the priorities above some alternative ways of handling the risks. The sequence of the alternative ways of handling the risks based on the top priority is as follows: (1) first priority by applying the switch over 5, (2) second priority by adding the KLB feeder, (3) third priority by increasing the service facility.
Harmonic Analysis of A DC Railway Traction with Uncontrolled 12 Pulse Rectifier Andri Pradipta; Santi Triwijaya; Willy Artha Wirawan; Febri Pandu Wijaya; Pegah Hamedani
Journal of Railway Transportation and Technology Vol. 1 No. 2 (2022): November
Publisher : Politeknik Perkeretaapian Indonesia Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (511.864 KB) | DOI: 10.37367/jrtt.v1i2.15

Abstract

In the topology of the DC traction substation there is a rectifier component which generally uses a 12 pulse rectifier type and the load is in the form of a trainset with a component in the form of a converter used for variable speed drives (VSD). The operation of the rectifier and the VSD converter load causes harmonics to appear on the AC input side, so anticipation needs to be done. Therefore, it is necessary to conduct an assessment related to DC traction substations to obtain good electrical power quality. The purpose of this study was to determine the electric power quality parameters of DC railway traction using a 12 pulse rectifier and a VSD converter load. This research was conducted by simulating a DC railway traction model with a 12 pulse rectifier and knowing the comparison of the system power quality between the VSD converter load and the resistive load as the basic reference for the traction substation work system of this model. System modeling is done using PSIM software. The results of the simulation are the parameters of the stability of the voltage, current, and system harmonics.

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