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PENGARUH MUATAN TRUK BERLEBIH TERHADAP BIAYA PEMELIHARAAN JALAN M. Saleh, Sofyan; Z. Tamin, Ofyar; Sjafruddin, Ade; Bona Frazila, Russ
Jurnal Transportasi Vol 9, No 1 (2009)
Publisher : Jurnal Transportasi

More than 90% of freight movement in Indonesia is carried out by land transportation (mostly highway mode). Meanwhile most nation land is surrounded by water, in which the movement could have been carried out by sea transportation. There are rail network in Java Island and some parts of Sumatera Island where multimodal/inter-modality system can be applied. However, lack of sea and rail transportation infrastructure and management makes highway mode the main choice among other transportation modes. This study investigated the impact of overloading trucks in the freight transportation system in Indonesia, because the government still allows trucks to carry up to 50% of the normal maximum load. This policy has greatinfluence on road deterioration, creating the vehicle damage factor approximately 5 times higher than that of the normal one. This overloading has a big impact on the maintenance of the road and will increase themaintenance budget.

KEBIJAKAN SISTEM TRANSPORTASI BARANG MULTIMODA DI PROVINSI NANGGROE ACEH DARUSSALAM M. Saleh, Sofyan; Sjafruddin, Ade; Z. Tamin, Ofyar; Bona Frazila, Russ
Jurnal Transportasi Vol 10, No 1 (2010)
Publisher : Jurnal Transportasi

More than 95% of freight movement in the Province of Aceh is done by the road mode. As most of the land in the province is surrounded by sea, the freight movement could have been done by sea transportation. Railway was already in the Province of Aceh long time ago, it began to operate in 1906, but the operation was closed in 1982. The Central Government and the Aceh Provincial Government want to revitalize the railway and there is also a plan to build a new Jalan Raya from Banda Aceh to North Sumatra border. However, there is a constraint in the costs of building these infrastructures so that multimodal and intermodal transportation can not take place. As a result, road transportation remains to be a major transport choice and this condition is even worse with vehicles on the road also tend to carry overload. This study was conducted in connection with the overload effect of the freight transport using trucks and how these trucks cause road deterioration and increase road maintenance costs in the Province of Aceh. The results suggest that multimodal/intermodal freight transportation, specifically road and railroad combined transport, could provide more efficient freight transport and, most likely, is the best option for the province.Keywords: freight transportation, multimodal/intermodal transportation, overload

MODEL PEMILIHAN RUTE DAN PEMBEBANAN PERJALANAN DENGAN SISTEM FUZZY Cahyo Kresnanto, Nindyo; Z. Tamin, Ofyar; Bona Frazila, Russ
Jurnal Transportasi Vol 9, No 2 (2009)
Publisher : Jurnal Transportasi

Route selection is a major element of the network assignment model. This process is often also callednetwork tree building. In conventional route selection, each repetition will only produce one best path orshortestpath. Using fuzzy systems approach, travel cost is modeled in fuzzy numbers. Fuzzy numbers arenumbers with certain upper-bound and under-bound limits. In fuzzy conditions, route selection process isexpected to produce several routes that can be nominated as the shortestpath. It means that in each repetition,the finding algorithm will generate more than one best route, starting from the first best route, the second bestroute, to the k best route. The next process is the trip assignment existing (demand side) on the transportationnetwork system (supply side) which will produce a route pattern and traffic flow. Traffic flow allocationbased on the series of best routes and degree of membership of fuzzy numbers.Keywords: fuzzy travel cost, fuzzy shortest path, fuzzy assignment

EFEKTIVITAS JALUR SEPEDA MOTOR PADA JALAN PERKOTAAN MENGGUNAKAN MODEL SIMULASI-MIKRO Zukhruf, Febri; Bona Frazila, Russ; Wibowo, Sony S .
Jurnal Transportasi Vol 10, No 1 (2010)
Publisher : Jurnal Transportasi

The Growth of motorcycles in Indonesia creates high proportion of motorcycles on traffic flow. This high proportion, which is very dominant, creates some traffic problems, including traffic jam dan traffic accidents. There are several methods available to solve the problems; for example providing motorcycle lane and slow lane for the movement of motorcycles. The purpose of this study is to determine the effectiveness of motorcycle lane and slow lane using microsimulation model. The results show that the microsimulation model can only be used for road sections with the average motor cycle speed less than 40 km per hour.Keywords: high proportion of motorcycle, microsimulation, motorcycle lane, slow lane

Modelling the Impact of Travel Time Uncertainty to the Cocoa Supply Chain Network Zukhruf, Febri; Frazila, Russ Bona
Jurnal Teknik Sipil Vol 25, No 1 (2018)
Publisher : Institut Teknologi Bandung

AbstractThe uncertainty issue becoming more and more important in term of freight transport, which essentially affect the transport cost. As an essential parameter to construct the product price, the transport cost variations sequentially impact the supply chain network structures. This paper then presents the multi-channelled supply chain network equilibrium (SCNE) model with the behaviour of freight carriers by considering variation of travel time. The cocoa SCNE model is then invoked to represent the trading chain of cocoa. As different with the previous researches, the model takes into account the variation of traffic flow and the road capacity to the freight cycle time, which is practically used for estimating the transport cost. The variation is propagated based on the Monte Carlo simulation approach. Finally, the model is applied to an actual cocoa SCN in Sulawesi for investigating the impact of travel time variation to the price of cocoa.AbstrakKetidakpastian di dalam jaringan transportasi menjadi isu yang semakin penting di dalam dunia angkutan barang, yang secara subtantif dapat mempengaruhi komponen biaya transportasi. Sebagai parameter penting untuk membangun harga produk, variasi biaya transportasi berperan dalam mempengaruhi struktur jaringan rantai pasokan. Makalah ini kemudian mendiskusikan model supply chain network equilibrium (SCNE) dengan perilaku angkutan barang dengan mempertimbangkan variasi waktu tempuh. Cocoa SCNE model kemudian digunakan untuk mewakili rantai pasok komoditas kakao. Berbeda dengan penelitian sebelumnya, makalah ini memperhitungkan variasi arus lalu lintas dan kapasitas jalan terhadap waktu siklus pengiriman, yang secara praktis digunakan untuk memperkirakan biaya transportasi. Variasi tersebut dibangun dengan mendasarkan kepada pendekatan simulasi Monte Carlo. Akhirnya, model ini diterapkan pada jaringan rantai pasok kakao di Sulawesi untuk menyelidiki dampak variasi waktu tempuh terhadap harga kakao.Â Â

Modelling the Impact of Travel Time Uncertainty to the Cocoa Supply Chain Network Zukhruf, Febri; Frazila, Russ Bona
Jurnal Teknik Sipil Vol 25, No 1 (2018)
Publisher : Institut Teknologi Bandung

AbstractThe uncertainty issue becoming more and more important in term of freight transport, which essentially affect the transport cost. As an essential parameter to construct the product price, the transport cost variations sequentially impact the supply chain network structures. This paper then presents the multi-channelled supply chain network equilibrium (SCNE) model with the behaviour of freight carriers by considering variation of travel time. The cocoa SCNE model is then invoked to represent the trading chain of cocoa. As different with the previous researches, the model takes into account the variation of traffic flow and the road capacity to the freight cycle time, which is practically used for estimating the transport cost. The variation is propagated based on the Monte Carlo simulation approach. Finally, the model is applied to an actual cocoa SCN in Sulawesi for investigating the impact of travel time variation to the price of cocoa.AbstrakKetidakpastian di dalam jaringan transportasi menjadi isu yang semakin penting di dalam dunia angkutan barang, yang secara subtantif dapat mempengaruhi komponen biaya transportasi. Sebagai parameter penting untuk membangun harga produk, variasi biaya transportasi berperan dalam mempengaruhi struktur jaringan rantai pasokan. Makalah ini kemudian mendiskusikan model supply chain network equilibrium (SCNE) dengan perilaku angkutan barang dengan mempertimbangkan variasi waktu tempuh. Cocoa SCNE model kemudian digunakan untuk mewakili rantai pasok komoditas kakao. Berbeda dengan penelitian sebelumnya, makalah ini memperhitungkan variasi arus lalu lintas dan kapasitas jalan terhadap waktu siklus pengiriman, yang secara praktis digunakan untuk memperkirakan biaya transportasi. Variasi tersebut dibangun dengan mendasarkan kepada pendekatan simulasi Monte Carlo. Akhirnya, model ini diterapkan pada jaringan rantai pasok kakao di Sulawesi untuk menyelidiki dampak variasi waktu tempuh terhadap harga kakao.Â Â

Penerapan Konsep Interaksi Tata Guna Lahan-Sistem Transportasi Dalam Perencanaan Sistem Jaringan Transportasi Tamin, Ofyar Z.; Frazila, Russ Bona
Journal of Regional and City Planning Vol 8, No 3 (1997)
Publisher : Center for Research and Community Services ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (725.016 KB)

Strong interaction between landuse and transportation system has been well and widely known by many transport planners. However, this concept is rarely being used in many transportation network planning projects. The parameter usually used is the trend of traffic growth. This kind of information is not very precise to be used for the transportation network development policy. This kind of information will give misleading results for the transportation network development policy.Basically, this interaction concept combines the regional development policy represented in the Regional Landuse Plan (national, province, kabupaten or city) with the Transport Network System which will accomodate the flows resulting from the activities carried out by each landuse. In fact, the landuse has a very strong causal relationship with the transport network system (road, rail, etc.)A quantitive model has been developed to relate the interaction between the Regional Landuse Plan and the Transport Network System (especially road) so that the transport network development policy, in fact, has anticipated and accomodated the changes due to the landuse development. This quantitive model can be used for different levels of planning such as: for landuse (national, regional island, province, kabupaten, city and ecen small local area) and for road transport network (arterial, collector, local, either primary or secondary). This paper will describe in detail the interaction concept in the form of a quantitive model and show the results of the application for planning the development of road transport network in East Java province.

Model Optimasi Pemeliharaan Jalan Multi Tahun dengan Batasan Anggaran Zukhruf, Febri; Frazila, Russ Bona; Burhani, Jzolanda Tsavalista; Samantha Ag, Rafika Almira
Jurnal Teknik Sipil Vol 26, No 2 (2019)
Publisher : Institut Teknologi Bandung

Pavement maintenance has longtermly been perceived as an essential factor for the road network efficiency and the driver safety. However, these activities involve the challenge issues relating to the pavement aging, the deterioration mechanism, and the available budget constraints. This paper then presents an optimization model for handling the multiyear maintenance programs in the network-level by including budget constraint. The model is developed as a mathematical programming problem, in which the Lagrange relaxation-based procedure is invoked for solving the problem. The numerical examples are also presented for providing the better insight of model application, in which the model could provide not only the multiyear maintenance programs but also the optimum budget allocation by considering the expected roughness performance of road network.Pemeliharaan perkerasan jalan telah lama dianggap sebagai faktor penting dalam menentukan efisiensi jaringan jalan. Namun, kegiatan ini selalu melibatkan tantangan yang berkaitan dengan penuaan perkerasan, mekanisme deteriorasi, dan keterbatasan anggaran yang tersedia. Artikel ini kemudian mengusulkan model optimasi matematika untuk strategi pemeliharaan jalan multi tahun pada level jaringan. Model ini bertugas untuk menentukan jenis kegiatan pemeliharaan dan waktunya dengan tujuan meminimalkan nilai International Roughness Index (IRI) melalui pengoptimalan pemanfaatan alokasi anggaran. Untuk menginvestigasi aplikabilitas dari model ini, eksperimen numerikal dilakukan pada jaringan jalan sederhana. Hasil dari eksperimen tersebut mengindikasikan kemampuan model tidak hanya dapat digunakan untuk merencanakan kegiatan pemeliharaan multi tahun dengan batasan anggaran, akan tetapi juga dapat digunakan untuk memberikan masukan terkiat penentuan alokasi anggaran dengan mengkonsiderasikan performa yang ingin dicapai.

PERHITUNGAN PENURUNAN BEBAN EMISI PENCEMARAN UDARA DARI PEMBANGUNAN JALUR TOL JORR W2 DI DKI JAKARTA Siami, Lailatus; Sofyan, Asep; Frazila, Russ Bona
Jurnal Teknik Lingkungan Vol 20, No 2 (2014)
Publisher : ITB Journal Publisher, LPPM ITB

Abstrak: Sebagai pusat urbanisasi, mobilitas barang dan manusia di Kota Jakarta memiliki rutinitas transportasi yang padat setiap hari. Hal ini ditandai dengan adanya orientasi mobilitas manusia dari perumahan di sekeliling Jakarta (Jabodetabek) menuju tempat kerja di Kota Jakarta. Dengan pertumbuhan jumlah kendaraan sebesar ±8% per tahun, sektor transportasi memiliki dampak berupa kemacetan dan pencemaran udara. Dari penelitian sebelumnya (Darmanto, 2012) sektor dominan dalam penyumbang emisi CO dan PM10 adalah sektor transportasi sebesar 78,85% dan 99,94%. Sehingga, diperlukan penanganan khusus pada sektor transportasi. Pendekatan pada jaringan jalan yang kompleks di Jakarta dilakukan dengan menggunakan model jaringan jalan. Sehingga didapatkan volume kendaraan tiap ruas jalan untuk dihitung beban emisinya. Berdasarkan hasil representasi dari model jaringan jalan, ruas jalan dengan volume tertinggi berada di jalan tol Cawang dan jalan utama pada jalan Ciputat Raya. Hasil dari inventarisasi emisi pada ruas jalan berbeda ? beda pada tiap jenis polutan. Hal ini dipengaruhi oleh proporsi jenis kendaraan yang ikut menentukan faktor emisi. 70,68% beban emisi didominasi oleh polutan CO sebesar 973.734,26 ton/tahun. Sistem transportasi di Jakarta disusun dalam pola transportasi makro (PTM). Dan pada RPJMD (Rencana Pembangunan Jangka Menengah Daerah), terdapat beberapa rencana prioritas untuk pembangunan transportasi. Salah satunya adalah pembangunan tol dalam kota maupun tol luar kota. Pada studi ini, skenario yang dipilih adalah pembangunan jalur tol JORR W2 (Jakarta Outer Ring Road West 2). Jalur tol ini Di daerah Kebon Jeruk ? Ulujami yang juga dijadikan akses bus. Dari skenario ini, didapatkan penurunan beban emisi sebesar 2% untuk polutan NOx; 1,6% untuk polutan NO2; 0,4% untuk polutan CO; 0,8% untuk polutan PM10 dan 0,1% untuk polutan VOC. Kata kunci: Sektor transportasi, model jaringan jalan, RPJMD, JORR W2, penurunan emisi Abstract : As the center of urbanitation for goods and human, Jakarta surely have a dense of mass transportation everyday. It is showed by the mobile of human from the surround (Jabodetabek) to workplace in Jakarta. By the 2011, the rate of vehicle number is ±8% each year. It is a common that transportation sector has a traffic congestion and traffic air pollution impact. Previous study (Darmanto, 2012) showed the dominant sector of highest emission of CO and PM10 from transportation sector as 78,8 % and 99,4%. So it will be necessary to take particular handling from transportation sector. The approach of complex road networking uses road networking model. So that, flow of vehicle in every road derived to be calculated in emission inventory. Based on emission inventory of road segmentation, Cawang road highway has the highest number for number of vehicle. And so does Ciputat Raya road. The result of emission inventory for each road is different for each parameter. Due to the proportion of vehicle which determine the factor emission. 70,68% CO as the highest emission is 973.734,26 ton/year. Transportation system in Jakarta conduct in Jakarta?s macro transportation (JMT) master plan. And in RPJMD (Mid-term action), there are some specific priority of transportation action. It is highway road development inner and outside of Jakarta. In this study, scenario will be do in development of Jakarta Outer Ring Road West 2(JORR W2). And the suitable scenario highway development in Kebun Jeruk ? Ulujami for bus ccesable. Based on the scenario, reduction of NOx emission is 2%; 1,6% for NO2 emission; 0,4% for CO emission; 0,8% for PM10 emission and 0,1% for VOC emission. Key words: Transportation sector, traffic networking model, Mid-term action, JORR W2, emission reduction

SIMULASI PEMODELAN JARINGAN JALAN UNTUK MEMPREDIKSI PENGURANGAN EMISI CO, NOX, PM10, DAN SO2 DARI RENCANA PEMBANGUNAN BUS RAPID TRANSIT DI KOTA TANGERANG Maulana B.S, Qiyam; Sofyan, Asep; Frazila, Russ Bona
Jurnal Teknik Lingkungan Vol 22, No 1 (2016)
Publisher : ITB Journal Publisher, LPPM ITB

Abstrak: Pencemaran udara saat ini menjadi salah satu masalah utama di kota-kota besar di Indonesia seperti di kota Tangerang. Sebagai daerah penyangga ibu kota Negara DKI Jakarta, Kota Tangerang merupakan salah satu wilayah dengan laju pertumbuhan ekonomi yang tinggi ditandai dengan bertambahnya jumlah industri, kawasan bisnis dan jumlah kendaraan bermotor. Saat ini jumlah dan penggunaan kendaraan bermotor bertambah dengan tingkat pertumbuhan rata-rata 10% per tahun. Pemerintah kota Tangerang berencana membangun fasilitas Bus Rapid Transit (BRT) guna mengatasi masalah kemacetan. Hal tersebut tentunya akan berdampak pada berkurangnya emisi yang dihasilkan dari sektor transportasi karena berkurangnya penggunaan kendaraan pribadi yang beralih ke BRT. Terdapat tiga skenario pemodelan yang dibuat pada penelitian ini yaitu Business As Usual, skenario BRT satu koridor, dan Skenario BRT 5 Koridor. Ketiga skenario tersebut juga diproyeksikan dalam lima tahun kedepan yaitu tahun 2021. Inventarisasi Emisi pada Segementasi Jalan di Kota Tangerang Tahun 2016 tanpa skenario adalah 270.292 ton/tahun untuk polutan CO. Polutan NOx sebesar 23.857 ton/tahun. Polutan PM10 sebesar 3.349 ton/tahun dan polutan SO2 sebesar 571 ton/tahun. Hasil dari penelitian menunjukkan Penurunan beban emisi dari skenario BRT 1 koridor pada tahun 2016 rata ? rata sebesar 1,5%. Untuk proyeksi tahun 2021 penurunan dari skenario BRT 1 koridor sebesar 5,6%. Sedangkan untuk skenario BRT 5 koridor rata-rata penurunan beban emisinya sebesar 16 %. Kata kunci: Inventarisasi emisi, pemodelan jaringan jalan, bus rapid transit Abstract : Air pollution is currently one of the main problems in big cities in Indonesia such as in the city of Tangerang. As the buffer area state capital of Jakarta, Tangerang City is one of the areas with a high rate of economic growth marked by the growing number of industries, the business district and the number of motor vehicles. Currently the number and use of motor vehicles increased with an average growth rate of 10% per year. Tangerang city government plans to build facilities Bus Rapid Transit (BRT) in order to overcome the problem of traffic jam. It certainly will have an impact on the reduction of emissions resulting from the transport sector due to reduced use of private vehicles are switching to BRT. There are three scenarios modeling made in this study is Business As Usual scenario, BRT one corridor scenario, and BRT five corridor Scenario. The three scenario is also projected in five years until 2021. Emissions Inventory at Tangerang Segmentation 2016 without scenario is 270.292 tonnes / year for pollutants CO. NOx pollutants by 23.857 tonnes / year. PM10 pollutants by 3.349 tons / year and pollutants SO2 by 571 tons / year. Results from the study showed that average reduction value of BRT one corridor scenario in 2016 is 1.5%. For the projected 2021 of BRT one corridor scenario by 5.6%. While the BRT five corridor scenario for an average reduction of emissions burden quite by 16%. Key words: emission inventory, road network modeling, bus rapid transit

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