Imam Muthohar
Department of Civil and Environmental Engineering, Universitas Gadjah Mada

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THE BOGOR BUS STATION RELOCATION IMPACT ANALYSIS TO THE BOGOR OUTER RING ROAD (BORR) AND PANGERAN SOGIRI STREET PERFORMANCE Tri Sudibyo; Imam Muthohar
Journal of the Civil Engineering Forum Volume: XXI/3 - September 2012
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (953.848 KB) | DOI: 10.22146/jcef.18923

Abstract

As the main bus station in Bogor, West Java, Baranangsiang bus station is currently located in the crowded city centre, near many offices, campuses and department stores. There is a plan of Bogor’s Dinas Perhubungan Komunikasi dan Informasi (Diskominfo) to relocate the bus station to the new location in the Pangeran Sogiri Street in Tanah Baru area, near the newly built toll road, the Bogor Outer Ring Road (BORR).This research is conducted to analyze the traffic performance impact of the relocation plan of the bus station to the BORR network and the Pangeran Sogiri Street. The traffic data is obtained from the field survey in the Baranangsiang bus station and the BORR network. Some other secondary data are obtained from the Dinas Lalu Lintas and Angkutan Jalan (DLLAJ) Bogor city. Based on the obtained data, a micro simulation model is built by using Aimsun traffic micro simulation program. The analysis is conducted in three traffic performance parameters; the traffic density, speed, and vehicles queue length. With respect to the analysis result, the relocation causes a serious traffic problem to the BORR network and the P. Sogiri Street. To minimize the problem caused by the relocation, three scenarios are proposed and thus simulated based on the findings and observed traffic problems. The first proposed scenario is conducted by widening the P. Sogiri Street and providing a 4-4 toll payment gate system to the BORR. This first scenario is able to reduce traffic problem in some sections, but the average network density, speed and queue length are still high by 132%, -54%, and 200% respectively compared to the existing condition. The second scenario is conducted by widening the P. Sogiri Street and providing a 5-3 toll gate system. This second scenario is also able to reduce traffic problem in most sections, but the average network density, speed and queue length are still high by 248%, -70%, and 95% respectively compared to the main bus station before the relocation. The third scenario is conducted by widening the P. Sogiri into 4 lanes, providing a 4-3 toll gate system, and providing a new access from/to P. Sogiri Street to Bogor city direction. The simulation result shows that the third scenario is considered as the best scenario since in this scenario, the density, speed and queue length are relatively similar compared to the existing condition.
Analysis on Railway Infrastructure Utilization Priority Factor Variation on Track Access Charges (TAC) Sekar Mayang; Imam Muthohar
Journal of the Civil Engineering Forum Vol. 2 No. 2 (May 2016)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.983 KB) | DOI: 10.22146/jcef.26584

Abstract

In Presidential Decree Republic of Indonesia Numb. 53 in 2012, it is explained that every railway operator which use railways infrastructure have to pay Track Access Charges (TAC) to Government. The rules of the calculation of TAC which have to be paid by PT.KAI is explained in Regulation of Transport Minister Numb. 62 in 2013. In this regulation, there is priority factor which has same value for every service type of the train (Fp=1). Actually, every service type of railway has different priority and gives different damages for infrastructure based on the speed. This research intended for analyzing the influence of priority factor to TAC. Quantitative description method is used in this research. The objects of the research are Executive, Business, and Economic class of passenger train in Java. It suggested with two alternatives calculation of TAC with variations in priority factor (Fp) which oriented on train travel time. Then, the best Fp is chosen which represented the real condition where the train with higher priority has to pay higher TAC than that of others. The result of this research, with Fp=1, showed the value of TAC for Economic class is IDR 68.00/GT/km, for Executive class is IDR 30.00/GT/km, while for Business class is IDR 28.00/GT/km. A modified of Fp, with two alternatives calculation, considering travel time and stay time of each railway service type showed a better result. The first alternative generates Fp= 1.39 for Executive class and gives IDR 42.00/GT/km for the average TAC, while Fp=1.21 for Business class and generates IDR 34.00/GT/km for average TAC. The second alternative generates Fp=3.00 for Executive class and it gives IDR 91.00/GT/km while for Business class generates Fp=2.00 and it gives IDR 56.00/GT/km. The calculation of TAC with second alternative is more represents the real condition, where Executive class has higher priority and speed than the other classes, so it also has to pay higher TAC.