Article Per Year (5 Year)
p-Index From 2020 - 2025
0.562
P-Index
This Author published in this journals
All Journal Majalah Ilmiah Pengkajian Industri CSID Journal of Infrastructure Development (CSID-JID)
Utomo, Djoko Prijo
Unknown Affiliation
Aerospace Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Social Sciences Transportation

Published : 8 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 8 Documents
Search

 1 
Permintaan Perjalanan Angkutan Umum Massal Kota Surabaya Utomo, Djoko Prijo
Majalah Ilmiah Pengkajian Industri Vol 8, No 2 (2014): MAJALAH ILMIAH PENGKAJIAN INDUSTRI
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2602.208 KB) | DOI: 10.29122/mipi.v8i2.3650

Abstract

Sebagaimana kota?kota metropolitan di dunia, kemacetan menjadi permasalahan utama dalam bidang transportasi perkotaan. Kemacetan terjadi pada umumnya karena ketidakseimbangan antara penyediaan (supply) dengan permintaan (demand). Usaha untuk menekan jumlah kendaraan di jalan, salah satunya, adalah dengan mempromosikan pengunaan angkutan umum kota. Oleh karena itu diperlukan sebuah perencanaan penyediaan fasilitas angkutan umum. Untuk memperkirakan permintaan angkutan umum dibangun model lalu lintas yang mereplikakan bangkitan, pola dan pembebanan perjalanan. Hasil kalibrasi model distribusi perjalanan menggunakan gravity model diperoleh fungsi impedance yang terbentuk dari fungsi waktu perjalanan dengan faktor ? sebesar 0.063. Perbedaan mean trip length model (dengan observed adalah -5,4%. Mean trip length (MTL) model dengan angkutan umum adalah 17,04 menit dan hasil survai 18,02 menit. Model yang terbangun validasinya cukup baik dengan indikator R2 terhadap data observed sebesar 0,88. Hasil dari seluruh tahapan proses pemodelan diperoleh total permintaan perjalanan dengan angkutan umum tahun 2030 diperkirakan mencapai 67.800.434 penumpang/tahun.Kata kunci: Angkutan umum masal, Distribusi perjalanan, Gravity model.AbstractAs metropolitan cities in the world, congestion becomes a major problem in the field of urban transport. Congestion occurs generally due to an imbalance between supplyand demand. Attempts to reduce the number of vehicles on the road, one of which, is to promote the utilization of public transport. Therefore we need a plan for the provision of public transport facilities. To estimate the demand for public transport, it is built transport model which is replicating the trip generation, trip distribution and trip assignment. The results of the trip distribution model calibration using a gravity model obtained impedance function which is formed from travel time functionby a ??factor of 0.063. Mean trip length difference between model and observed is equal -5,4%.Mean trip length (MTL) model utilizing public transportsis about 17.04 minutes whereasMTL resulted from traffic survey is about 18.02 minutes.The model validation is quite well with observed data by showing the R2 indicatorof about 0.88.The results fromall stages modeling process obtained total travel demand by public transport in the year of 2030 is estimated at about 67,800,434 passengers/year.Keywords: Mass transit, Trip distribution, Gravity model.
Pemodelan Ruas Jalan Tunggal dengan Diagram Fundamental Triangular equilibrium Harjono, Mulyadi Sinung; Utomo, Djoko Prijo
Majalah Ilmiah Pengkajian Industri Vol 13, No 2 (2019): Majalah Ilmiah Pengkajian Industri
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1044.352 KB) | DOI: 10.29122/mipi.v13i2.3472

Abstract

Paper ini memodelkan ruas jalan tunggal untuk kondisi lalu lintas kendaraan makroskopik pada ruas jalan tunggal berdasarkan diagram-fundamental-triangular-equilibrium (DFTe) dengan hybrid ? Petri nets. Integrasi DFTe ke dalam model HPN dilakukan dengan memodelkan 1). infrastruktur ruas jalan menggunakan struktur dinamis jaringan HPN, 2). dinamika jumlah kendaraan pada titik keluar ruas jalan saat steady-state dengan parameter kecepatan firing internal ?. Kondisi lalu lintas kendaraan pada ruas jalan tunggal ditunjukkan oleh evolusi aliran arus dan evolusi token saat steady-state. DFTe diperoleh dari kumpulan berbagai kondisi lalu lintas kendaraan steady-state pada ruas jalan tertentu. Non-linearitas DFTe dimodelkan dengan sinkronisasi transition HPN menggunakan minimum-operator. Paper ini menghasilkan pemodelan baru DFTe menggunakan timed HPN dengan infinite-server-semantics untuk diterapkan pada ruas jalan tunggal. Pemodelan baru DFTe untuk ruas jalan tunggal terbukti lebih baik, karena dapat menunjukkan kondisi lalu lintas arus bebas, arus stabil dan arus tertahan.
IMPACT OF THE JAKARTA – SURABAYA HIGH – SPEED TRAIN ON PASSENGERS OF THE JAKARTA – SURABAYA EXECUTIVE TRAIN CORRIDOR Utomo, Djoko Prijo; Lestari, Prasetyaning Diah Rizky; Sucipto, Sucipto; Nurhidayat, Asep Yayat
Majalah Ilmiah Pengkajian Industri Vol 14, No 1 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (627.59 KB) | DOI: 10.29122/mipi.v14i1.3897

Abstract

Due to the increasing demand for travel by train in recent years, the large potential number of passengers in Jakarta - Surabaya corridor needs to be anticipated with adequate transportation system planning so that the bottlenecks on available transportation network system can be minimized. This paper analyses the potential competition between the demand of executive passenger train and Jakarta-Surabaya high-speed train which will be built by the Government as planned. This study only use travel time variables and ticket rates as independent variables between executive passenger train and high-speed train, then stated preference methods and binomial logit models are used as tools for processing data. As a result, we believe that the operation of Jakarta-Surabaya high-speed train will have a negative impact on the demand of executive passenger train on this route.
COMPARISON ANALYSIS OF RAILWAY BRIDGE MODUL FOR “I” GIRDER TYPE AND “WARREN” TRUSS TYPE Purnomo, Dwi Agus; Utomo, Djoko Prijo; Waseso, Agung Barokah; Marindaa, Mira
Majalah Ilmiah Pengkajian Industri Vol 14, No 1 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i1.3833

Abstract

The railway bridge in Indonesia, with a width of 1067 mm, was built in 1878, so that maintenance modules are needed to repair or to replace of construction modul at regular intervals. Implementation of maintenance and repairs refers to the Minister of Transportation Regulation No. 60 of 2012. Problems were encountered in the field at the BH182 Daop 2 railway bridge in Bandung due to lowering structural strength. Therefore, it was necessary to repair the bridge module with a new bridge design. The purpose of this study is to analyse and to calculate strength of the structure and to determine effectiveness of the use of construction materials on 2 alternative bridge construction selection with the type of ?I" girder and the type of ?Warren" Truss. Design implementation method used is to utilize Midas Civil Structure software. The loading used for railway bridges is grouped into three load groups, namely the girder's self-weight, additional dead load, and live load. Additional dead load analysed is line load including bearings, while for live load is trainset load based on loading requirements. From the results of calculations between the steel bridge ?I" girder type height of 300 cm and the type of ?Warren" Truss height of 600 cm, each span of 30 m showed that those were a function of the railway bridge. It would be more effective to use the type of ?Warren? Truss structure that is quite able to withstand train traffic loads in accordance with applicable standards.
PEMODELAN RUAS JALAN TUNGGAL DENGAN DIAGRAM FUNDAMENTAL TRIANGULAR EQUILIBRIUM Harjono, Mulyadi Sinung; Utomo, Djoko Prijo
Majalah Ilmiah Pengkajian Industri Vol 13, No 2 (2019): Majalah Ilmiah Pengkajian Industri
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1044.352 KB) | DOI: 10.29122/mipi.v13i2.3472

Abstract

Paper ini memodelkan ruas jalan tunggal untuk kondisi lalu lintas kendaraan makroskopik pada ruas jalan tunggal berdasarkan diagram-fundamental-triangular-equilibrium (DFTe) dengan hybrid ? Petri nets. Integrasi DFTe ke dalam model HPN dilakukan dengan memodelkan 1). infrastruktur ruas jalan menggunakan struktur dinamis jaringan HPN, 2). dinamika jumlah kendaraan pada titik keluar ruas jalan saat steady-state dengan parameter kecepatan firing internal ?. Kondisi lalu lintas kendaraan pada ruas jalan tunggal ditunjukkan oleh evolusi aliran arus dan evolusi token saat steady-state. DFTe diperoleh dari kumpulan berbagai kondisi lalu lintas kendaraan steady-state pada ruas jalan tertentu. Non-linearitas DFTe dimodelkan dengan sinkronisasi transition HPN menggunakan minimum-operator. Paper ini menghasilkan pemodelan baru DFTe menggunakan timed HPN dengan infinite-server-semantics untuk diterapkan pada ruas jalan tunggal. Pemodelan baru DFTe untuk ruas jalan tunggal terbukti lebih baik, karena dapat menunjukkan kondisi lalu lintas arus bebas, arus stabil dan arus tertahan.
Permintaan Perjalanan Angkutan Umum Massal Kota Surabaya Utomo, Djoko Prijo
Majalah Ilmiah Pengkajian Industri Vol. 8 No. 2 (2014): Majalah Ilmiah Pengkajian Industri
Publisher : Deputi TIRBR-BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2602.208 KB) | DOI: 10.29122/mipi.v8i2.3650

Abstract

Sebagaimana kota–kota metropolitan di dunia, kemacetan menjadi permasalahan utama dalam bidang transportasi perkotaan. Kemacetan terjadi pada umumnya karena ketidakseimbangan antara penyediaan (supply) dengan permintaan (demand). Usaha untuk menekan jumlah kendaraan di jalan, salah satunya, adalah dengan mempromosikan pengunaan angkutan umum kota. Oleh karena itu diperlukan sebuah perencanaan penyediaan fasilitas angkutan umum. Untuk memperkirakan permintaan angkutan umum dibangun model lalu lintas yang mereplikakan bangkitan, pola dan pembebanan perjalanan. Hasil kalibrasi model distribusi perjalanan menggunakan gravity model diperoleh fungsi impedance yang terbentuk dari fungsi waktu perjalanan dengan faktor  sebesar 0.063. Perbedaan mean trip length model (dengan observed adalah -5,4%. Mean trip length (MTL) model dengan angkutan umum adalah 17,04 menit dan hasil survai 18,02 menit. Model yang terbangun validasinya cukup baik dengan indikator R2 terhadap data observed sebesar 0,88. Hasil dari seluruh tahapan proses pemodelan diperoleh total permintaan perjalanan dengan angkutan umum tahun 2030 diperkirakan mencapai 67.800.434 penumpang/tahun.Kata kunci: Angkutan umum masal, Distribusi perjalanan, Gravity model.AbstractAs metropolitan cities in the world, congestion becomes a major problem in the field of urban transport. Congestion occurs generally due to an imbalance between supplyand demand. Attempts to reduce the number of vehicles on the road, one of which, is to promote the utilization of public transport. Therefore we need a plan for the provision of public transport facilities. To estimate the demand for public transport, it is built transport model which is replicating the trip generation, trip distribution and trip assignment. The results of the trip distribution model calibration using a gravity model obtained impedance function which is formed from travel time functionby a factor of 0.063. Mean trip length difference between model and observed is equal -5,4%.Mean trip length (MTL) model utilizing public transportsis about 17.04 minutes whereasMTL resulted from traffic survey is about 18.02 minutes.The model validation is quite well with observed data by showing the R2 indicatorof about 0.88.The results fromall stages modeling process obtained total travel demand by public transport in the year of 2030 is estimated at about 67,800,434 passengers/year.Keywords: Mass transit, Trip distribution, Gravity model.
BINOMIAL LOGIT MODEL UNTUK PEMILIHAN MODA ANTARA PESAWAT UDARA, KERETA API EKSEKUTIF, DAN KERETA API EKSPRES Utomo, Djoko Prijo; Harjono, Mulyadi Sinung
Majalah Ilmiah Pengkajian Industri Vol. 13 No. 1 (2019): Majalah Ilmiah Pengkajian Industri
Publisher : Deputi TIRBR-BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (506.756 KB) | DOI: 10.29122/mipi.v13i1.3400

Abstract

Penelitian ini untuk mengkaji potensi pasar dari rencana pembangunan kereta api ekspres Jakarta – Semarang. Survai stated preference dan model logit binomial digunakan untuk kompetisi antara moda kereta api ekspres dengan pesawat udara maupun kereta api kelas eksekutif yang telah beroperasi. Atribut yang digunakan adalah travel time dan travel cost.  Hasil analisa regresi untuk model utility cukup baik dengan indikator R2 sebesar 0,51 untuk penumpang pesawat udara dan 0,56 untuk penumpang kereta api kelas api eksekutif. Hasil temuan menunjukkan bahwa penumpang pesawat udara lebih sensitif terhadap perubahan waktu tempuh dibandingkan penumpang KA eksekutif, dan penumpang pesawat udara juga memiliki kemampuan membeli yang lebih tinggi dibandingkan penumpang KA eksekutif. Jika waktu perjalanan KA ekspres 2,8 jam (kecepatan rata-rata 155,5 km/jam), maka potensi pendapatan terbesar terjadi jika tarif Rp. 360.000,-/penumpang.
The Selection of PPP Type Through Value for Money Analysis: A Case Study of Jakarta-Surabaya Railway Project Purnomo, Dwi Agus; Yulianta, Yulianta; Utomo, Djoko Prijo; Sucipto, Sucipto
CSID Journal of Infrastructure Development Vol 3, No 1 (2020)
Publisher : Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32783/csid-jid.v3i1.117

Abstract

With the suboptimal performance of the Jakarta-Surabaya corridor railway currently operating, the Government of Indonesia intends to upgrade the railway system in terms of speed performance as well as to engage the participation of both the public and private sectors in the upgrading project as mandated in Presidential Regulation Number 38/2015. Through this research, the type selection of the Public-Private Partnership (PPP) scheme and their implications on the Jakarta-Surabaya railway project will be demonstrated by conducting analysis to the alternative scenarios of the study on railway technology selection with an emphasis on economic and financial feasibility aspects to determine the suitable PPP type,  which is validated through Value for Money (VfM) analysis,  where the benefits of the selected PPP type in terms of economic, financial, and non-financial aspects were examined through numerical tests, the result of which indicated that with the VfM value of the actual data of IDR 224.51 trillion, and the most significant changes in VfM value for each variable change are in the 20-year concession period which reduces the VfM value by 4%. Of all the variable changes, there is no minus VfM value, indicating that public projects are in an improved condition with the PPP scheme.
Co-Authors Ali Djamhuri Harjono, Mulyadi Sinung Lestari, Prasetyaning Diah Rizky Marindaa, Mira Nurhidayat, Asep Yayat Purnomo, Dwi Agus Purnomo, Dwi Agus Waseso, Agung Barokah Yulianta, Yulianta