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PENGEMBANGAN METODOLOGI PERENCANAAN TRANSPORTASI BARANG REGIONAL Mahmudah, Noor; Malkhamah, Siti; Parikesit, Danang; Priyanto, Sigit
Jurnal Transportasi Vol 11, No 3 (2011)
Publisher : Jurnal Transportasi

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This paper attempts to elaborate the relationship of the economics activities of commodities toward export -specifically the production of goods and services that generate freight transportation. The spatial data of commodities related to the economicsâ activities (resources, factories, and outlets), the transportation data(infrastructures, modes, and services), and government regulations, are use in formulating the method for freight transportation planning utilizing intermodality concept, to produce efficient freight movements and to enhance sustainable mobility and economic development in the regional scale.Keywords: economics activities, freight transportation, sustainable mobility.

PENGEMBANGAN MODEL BIAYA KEMACETAN BAGI PENGGUNA MOBIL PRIBADI DI DAERAH PUSAT PERKOTAAN YOGYAKARTA Sugiyanto, Gito; Munawar, Ahmad; Malkhamah, Siti; Sutomo, Heru
Jurnal Transportasi Vol 11, No 2 (2011)
Publisher : Jurnal Transportasi

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Traffic congestion on the road occurred when travel demand exceeds the capacity of the road. This study aims to estimate and develop a model of congestion costs for private car users in the area of Jalan Malioboro, Yogyakarta, with a length of 1.414 km. The study was limited to the congestion charge for private car users only. The results show that the generalized cost of private car transportation on the actual conditions in the Malioboro area, Yogyakarta, is Rp. 5,513.77 per trip and on the conditions of free flow speed is Rp. 2,598.78 per trip, so that the congestion charge for private car users in this region is Rp. 2,914.99 per trip. The form of congestion charge model for private car users in the area of Malioboro, Yogyakarta, is an exponential function, with the lower the actual traffic speed, the greater the cost of traffic congestion caused.Keywords: congestion charge, private car, the combined cost of transportation, vehicle operating costs,the cost of travel time.

MODEL PEMILIHAN MODA ANTARA MOBIL PRIBADI DAN BIS TRANSJOGJA AKIBAT PENERAPAN BIAYA KEMACETAN Sugiyanto, Gito; Malkhamah, Siti
Jurnal Transportasi Vol 9, No 2 (2009)
Publisher : Jurnal Transportasi

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Traffic congestion can be a serious problem in major cities around the world, especially in centrall urban area. Congestion results not only in time lost while sitting in traffic jams but also constitutes a disruption to company supply chains and the general flow of commerce. Idling vehicles contribute as well to air pollution which reduces the quality of health. The aim of this paper is to formulate mode choice model between privatepassenger cars and TransJogja Bus service as a result of the application of a congestion cost in a congested road along the region of Malioboro, Yogyakarta. The amount of the congestion cost represents the difference between perceived and actual generalized cost in traffic jam condition. In this study the congestion cost is only applied to the private passenger cars, as they are expected to shift to TransJogja Bus and, therefore, thepublic transport usage will increas. The mode choice model was developed based on users preferences of service as indicated by travel attributes. The logit binomial model was used to formulate the individual behavior based on stated preference data from passenger car users in Malioboro, Yogyakarta. The modelpredicts the probability of choosing a particular mode of transportation. The result show that five travel attributes assumed to have high influences toward mode choice behavior. These attributes are travel cost, congestion cost, travel time, parking cost, and walking time to the bus stop of TransJogja.Keywords: binomial logit model, congestion cost, stated preference, traffic congestion, TransJogja

REGIONAL FREIGHT TRANSPORTATION MODEL FOR CRUDE PALM OIL IN CENTRAL KALIMANTAN Mahmudah, Noor; Malkhamah, Siti; Parikesit, Danang; Priyanto, Sigit
Jurnal Transportasi Vol 10, No 3 (2010)
Publisher : Jurnal Transportasi

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This study attempts to model freight transportation of specific commodity in the regional scale, particularly to identify the shortest route of Crude Palm Oil (CPO) commodities, which are transported from factories to ports using different transportation network and mode. Several activities were performed, includingidentifying the location of palm plantations and factories supporting CPO industries, identifying intermediate points in the road and river networks, and determining the access route of CPO transportation from factory to the road or river networks. In determining the shortest route, various transportation networks and modes are simulated using Geographical Information System analysis by considering travel distance, time, and costas the variables influencing transportation systems. There are 113 of CPO factories identified, then be classified into three classes by considering their production capacity. It is found that 80 factories are classified as small (71%), 26 factories are medium (23%), and 7 factories are big (6%). The shortest route is identified through both road and river networks. The analysis of the shortest routes shows that road networks have shorter travel distance and time compared to the rivers. Nevertheless, river transportation offers a cheaper price compared to road transportation. Therefore, there is a competition between these two transportation modes, in which about 51% of factories probably use road networks and 49% use river networks. Moreover, it is predicted that about 70% of total CPO in Central Kalimantan is transported to Sampit port and only 30% is transported to Kumai port.Keywords: freight transportation, shortest route, Geographical Information System

PELAYANAN DAN TARIF KERETA API PERKOTAAN DI YOGYAKARTA Hariwahyudi, Risky; Suprapto, Dewi Fatmawati; Malkhamah, Siti
Jurnal Transportasi Vol 16, No 3 (2016)
Publisher : Jurnal Transportasi

AbstractÂ High mobility of vehicles in Yogyakarta city causes a lot of traffic problems. Therefore, urban railways are needed along with urban buses to reduce congestion. This study was conducted to understand the ability to pay and the willingness to pay of urban rail users and to develop service scenarios to determine the fares. Data were obtained through interviews with the stated preference survey method, that include 4 scenarios with combination of fares, waiting time, and travel time. The results show that the first scenario is the best one. Scenario 1 indicates that 53% students who use Trans Jogja and 50.8% students who use motorcycle will switch to use the train. The probability of all Trans Jogja users and all motorcyclists to use the train is 39.9% for scenario 1 and 59% for scenario 3, respectively.Â Keywords: urban rail, urban bus, stated preference, traffic congestion.Â Â AbstrakÂ Tingginya mobilitas kendaraan di dalam kota serta dari dan ke Yogyakarta menyebabkan banyak perma-salahan lalulintas. Oleh karena itu perlu dijajaki kemungkinan pengoperasian kereta api perkotaan untuk melengkapi bus perkotaan guna mengurangi kemacetan lalulintas. Sebagai langkah awal, perlu diketahui tingkat daya beli dan kesediaan membayar kereta api perkotaan serta penerapan skenario pelayanan sebagai pertimbangan penetapan tarif. Data diperoleh melalui wawancara dengan metode survei stated preference, yang mencakup sekenario pelayanan 1, 2, 3, dan 4 dengan kombinasi tarif, waktu tunggu, dan waktu tempuh. Hasil penelitian ini menunjukkan bahwa skenario 1 merupakan skenario yang paling banyak dipilih. Pada skenario 1 ini, 53% pelajar pengguna Trans Jogja dan 50,8% pelajar pengguna sepeda motor akan beralih untuk menggunakan kereta api. Secara umum, pengguna Trans Jogja dan pengguna sepeda motor mempunyai probabilitas untuk menggunakan kereta api masing-masing sebesar 39,9% pada skenario 1 dan sebesar 59% pada skenario 3.Â Kata-kata kunci: kereta api perkotaan, bus perkotaan, stated preference, kemacetan lalulintas

PENGEMBANGAN METODOLOGI PERENCANAAN TRANSPORTASI BARANG REGIONAL Mahmudah, Noor; Malkhamah, Siti; Parikesit, Danang; Priyanto, Sigit
Jurnal Transportasi Vol 11, No 3 (2011)
Publisher : Jurnal Transportasi

This paper attempts to elaborate the relationship of the economics activities of commodities toward export -specifically the production of goods and services that generate freight transportation. The spatial data of commodities related to the economicsâ activities (resources, factories, and outlets), the transportation data(infrastructures, modes, and services), and government regulations, are use in formulating the method for freight transportation planning utilizing intermodality concept, to produce efficient freight movements and to enhance sustainable mobility and economic development in the regional scale.Keywords: economics activities, freight transportation, sustainable mobility.

PENGEMBANGAN MODEL BIAYA KEMACETAN BAGI PENGGUNA MOBIL PRIBADI DI DAERAH PUSAT PERKOTAAN YOGYAKARTA Sugiyanto, Gito; Munawar, Ahmad; Malkhamah, Siti; Sutomo, Heru
Jurnal Transportasi Vol 11, No 2 (2011)
Publisher : Jurnal Transportasi

Traffic congestion on the road occurred when travel demand exceeds the capacity of the road. This study aims to estimate and develop a model of congestion costs for private car users in the area of Jalan Malioboro, Yogyakarta, with a length of 1.414 km. The study was limited to the congestion charge for private car users only. The results show that the generalized cost of private car transportation on the actual conditions in the Malioboro area, Yogyakarta, is Rp. 5,513.77 per trip and on the conditions of free flow speed is Rp. 2,598.78 per trip, so that the congestion charge for private car users in this region is Rp. 2,914.99 per trip. The form of congestion charge model for private car users in the area of Malioboro, Yogyakarta, is an exponential function, with the lower the actual traffic speed, the greater the cost of traffic congestion caused.Keywords: congestion charge, private car, the combined cost of transportation, vehicle operating costs,the cost of travel time.

MODEL PEMILIHAN MODA ANTARA MOBIL PRIBADI DAN BIS TRANSJOGJA AKIBAT PENERAPAN BIAYA KEMACETAN Sugiyanto, Gito; Malkhamah, Siti
Jurnal Transportasi Vol 9, No 2 (2009)
Publisher : Jurnal Transportasi

Traffic congestion can be a serious problem in major cities around the world, especially in centrall urban area. Congestion results not only in time lost while sitting in traffic jams but also constitutes a disruption to company supply chains and the general flow of commerce. Idling vehicles contribute as well to air pollution which reduces the quality of health. The aim of this paper is to formulate mode choice model between privatepassenger cars and TransJogja Bus service as a result of the application of a congestion cost in a congested road along the region of Malioboro, Yogyakarta. The amount of the congestion cost represents the difference between perceived and actual generalized cost in traffic jam condition. In this study the congestion cost is only applied to the private passenger cars, as they are expected to shift to TransJogja Bus and, therefore, thepublic transport usage will increas. The mode choice model was developed based on users preferences of service as indicated by travel attributes. The logit binomial model was used to formulate the individual behavior based on stated preference data from passenger car users in Malioboro, Yogyakarta. The modelpredicts the probability of choosing a particular mode of transportation. The result show that five travel attributes assumed to have high influences toward mode choice behavior. These attributes are travel cost, congestion cost, travel time, parking cost, and walking time to the bus stop of TransJogja.Keywords: binomial logit model, congestion cost, stated preference, traffic congestion, TransJogja

REGIONAL FREIGHT TRANSPORTATION MODEL FOR CRUDE PALM OIL IN CENTRAL KALIMANTAN Mahmudah, Noor; Malkhamah, Siti; Parikesit, Danang; Priyanto, Sigit
Jurnal Transportasi Vol 10, No 3 (2010)
Publisher : Jurnal Transportasi

This study attempts to model freight transportation of specific commodity in the regional scale, particularly to identify the shortest route of Crude Palm Oil (CPO) commodities, which are transported from factories to ports using different transportation network and mode. Several activities were performed, includingidentifying the location of palm plantations and factories supporting CPO industries, identifying intermediate points in the road and river networks, and determining the access route of CPO transportation from factory to the road or river networks. In determining the shortest route, various transportation networks and modes are simulated using Geographical Information System analysis by considering travel distance, time, and costas the variables influencing transportation systems. There are 113 of CPO factories identified, then be classified into three classes by considering their production capacity. It is found that 80 factories are classified as small (71%), 26 factories are medium (23%), and 7 factories are big (6%). The shortest route is identified through both road and river networks. The analysis of the shortest routes shows that road networks have shorter travel distance and time compared to the rivers. Nevertheless, river transportation offers a cheaper price compared to road transportation. Therefore, there is a competition between these two transportation modes, in which about 51% of factories probably use road networks and 49% use river networks. Moreover, it is predicted that about 70% of total CPO in Central Kalimantan is transported to Sampit port and only 30% is transported to Kumai port.Keywords: freight transportation, shortest route, Geographical Information System

FAKTOR PEMICU PERSEPSI DAN SIKAP TOLERAN PENGENDARA TERHADAP RISIKO KECELAKAAN da Costa, Don Gaspar Noesaku; Malkhamah, Siti; Suparma, Latif Budi
Jurnal Transportasi Vol 18, No 1 (2018)
Publisher : Jurnal Transportasi

AbstractÂ Impact speed was believed to be the factor that associated with fatal accident. On the other hand, a number of riders believe that their braking capabilities could reduce the risk. The perception should be studied deeply. Therefore, this paper was focused to identify variables influencing riderâs risk tolerance due to speeding behavior. The risk tolerance analysis was conducted based on the values of safety factor and margin of safety, due to the differences in braking capability. Safety factor was defined as the ratio of the available stopping sight distance to a minimum stopping sight distance; whilst the margin of safety was the different between safety factor and its optimum safety criteria. All the input data were collected from the result of literature review. The result showed that vehicle deceleration, due to engine brake force, influence the vehicle speed before braking significantly, and end up with a decreasing in impact speed. Since the risk might be reduced by increasing the braking capability, the awareness of it was indicated to be the triggering factor of an accident risk toleranceâs level.Â Keywords: braking capability, minimum margin of safety, risk tolerance, speeding behaviorÂ Â AbstrakÂ Impact speed diyakini merupakan faktor yang memengaruhi kecelakaan fatal. Di lain pihak, sejumlah pengendara meyakini bahwa kemampuan pengereman mereka dapat menurunkan tingkat risiko tersebut. Persepsi tersebut perlu dipelajari lebih mendalam. Penelitian ini difokuskan pada identifikasi variabel yang memengaruhi tingkat toleransi pengendara terhadap risiko yang ditimbulkan oleh perilaku speeding. Analisis toleransi terhadap risiko tersebut didasarkan pada nilai safety factor dan margin of safety akibat perbedaan kemampuan pengereman. Safety factor merupakan rasio antara jarak pandang henti tersedia dan jarak pandang henti minimum, sedangkan margin of safety merupakan selisih antara safety factor dan kriteria keselamatan optimumnya. Seluruh data input untuk studi ini diperoleh dari hasil kajian literatur. Hasil studi menunjukkan bahwa perlambatan kendaraan akibat tahanan mesin berdampak signifikan pada penurunan kecepatan kendaraan sesaat sebelum pengereman dan berujung pada penurunan impact speed. Karena risiko tersebut dapat dikurangi melalui peningkatan kemampuan pengereman, pemahaman akan hal ini terindikasi menjadi faktor pemicu tingkat toleransi terhadap risiko kecelakaan.Â Kata-kata kunci: kemampuan pengereman, margin keselamatan minimum, toleransi risiko, perilaku mempercepat

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