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All Journal Jurnal Transportasi Jurnal Teknik Sipil Jurnal Jalan Jembatan
Febri Zukhruf
Fakultas Teknik Sipil dan Lingkungan Institut Teknologi Bandung
Civil Engineering, Building, Construction & Architecture Transportation

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IMPROVING ROAD NETWORK CONSIDERING RICE SUPPLY CHAIN NETWORK Maulana, Andrean; Sjaruddin, Ade; Frazila, Russ Bona; Zukhruf, Febri
Jurnal Transportasi Vol. 24 No. 1 (2024): Jurnal Transportasi
Publisher : Forum Studi Transportasi antar Perguruan Tinggi (FSTPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26593/jtrans.v24i1.7911.62-73

Abstract

The stakeholders involved in the rice supply chain, who rely on transportation networks, have a shared objective of enhancing their operational efficiency to maximise surplus. This paper presents a model that aims to evaluate the impact of road network improvement on the stakeholders involved in the rice supply chain network. The entities considered as related stakeholders in this context encompass collectors, wholesalers, and retailers, that have a distinct logistics cost structure and profit ratio.The model is developed within the framework of bi-level optimization, in which the upper level decides the road network improvement action and the lower level describes the optimality conditions of the rice supply chain network. The method of successive averages (MSA) is proposed to solve the lower-level problem, where a full enumeration-based approach is conducted in the upper-level problem The case study is situated in the Cugenang District of the Cianjur Regency, an area renowned for its productivity value in the rice farming sector, surpassing other sectors in economic significance. The numerical experiment evaluates three alternatives for road development, with the alternative consisting of solid connectivity to stakeholders yielding the greatest surplus, refer to Alternative 1 with highest surplus investment ratio (0.0000232).
ANALISIS DAMPAK LALU LINTAS AKIBAT DISRUPSI PADA SAAT ACARA BESAR DENGAN MENGGUNAKAN MODEL SIMULASI MIKRO Zukhruf, Febri; Maulana, Andrean; Nugroho, Taufiq Suryo; Purwanti, Oka; Santoso, Satya Ananda; Khaerul Ikhsan, Robby Septiandi
Jurnal Jalan Jembatan Vol 41 No 2 (2024)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58499/jatan.v41i2.1219

Abstract

This paper discusses traffic performance under major and disruption events on the road network. Traffic on the road network is modelled based on a microsimulation model by considering conditions without disruption, with disruption, and with disruption accompanied by the mitigation schemes. The simulation model used in this paper models the driving behaviour at the micro level that can be used to simulate interactions between vehicles and traffic performance in response to changes in road capacity due to disruption. The model is tested on a road network with significant sports events and potential natural disasters. Traffic flow is estimated based on information from previous events. The results of the microsimulation modelling show that the disruption scenario can reduce road network performance by up to 43%, with total delays that can increase up to five times. In addition, the mitigation schemes to reduce the disruption contribute to maintaining good traffic performance. This paper's framework can potentially be used to assess the impact of traffic disruptions during significant events. Furthermore, it can evaluate alternative strategies to overcome the disruption.
Commuter Travelers Perception of Toll Roads During the Ramp Up Period in Indonesia Dharmawan, Weka Indra; Sjafruddin, Ade; Frazila, Russ Bona; Zukhruf, Febri
Jurnal Teknik Sipil Vol 30 No 3 (2023): Jurnal Teknik Sipil
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2023.30.3.2

Abstract

Abstract Studies on the travelers’ perceptions to toll roads during the ramp-up period are still rare, whereas they are important to assess toll road investment. The paper aims to establish a first approach in modeling the perceptions of individual commuter travelers during the learning process and adaptation to newly operating toll roads. Particularly, efforts to identify the attitudes and behaviors of individual commuter travelers towards interurban toll roads that connect between developing agglomeration areas. The data is collected through revealed and stated preference surveys using a snowball sampling technique with social media applications. Then we develop a binary logit model to explore commuter travelers’ perceptions to toll road during ramp-up period, and the results indicate that when doing commuter travel activities prefer to use the toll road, with the attributes that most influence on decision making respectively, travel time, travel costs, toll gate distance, travel distance, traveler's age, scenic beauty and the frequency of using toll roads. The paper also showed that the positive preference of toll roads during the ramp-up period is not always related to traffic congestion such as in dense urban areas, the presence of sightseeing traffic is very potential. Keywords: Route choice behavior, binary logit model, toll road, ramp-up period Abstrak Studi mengenai persepsi masyarakat terhadap jalan tol selama periode ramp-up masih jarang dilakukan, hal ini penting untuk menilai kelayakan investasinya. Makalah ini bertujuan untuk menetapkan pendekatan pertama dalam memodelkan persepsi individu pelaku perjalanan komuter selama periode tersebut sebagai proses belajar dan beradaptasi terhadap jalan tol yang baru beroperasi. Khususnya, upaya untuk mengidentifikasi sikap dan perilaku individu pelaku perjalanan terhadap jalan tol antar kota penghubung kawasan aglomerasi yang sedang berkembang. Pengumpulan data dilakukan melalui survei revealed dan stated preference dengan teknik bola salju (snowball sampling) yang menggunakan media sosial. Kemudian kami mengembangkan model logit-biner untuk mengeksplorasi persepsi penumpang komuter terhadap jalan tol pada periode ramp-up dan hasilnya menunjukkan bahwa ketika melakukan aktivitas perjalanan, pelaku perjalanan komuter lebih memilih menggunakan jalan tol dengan atribut yang paling berpengaruh terhadap pengambilan keputusan masing-masing adalah, waktu tempuh, biaya perjalanan, jarak gerbang tol, jarak tempuh, umur penumpang, keindahan pemandangan dan frekuensi penggunaan jalan tol. Makalah ini juga menunjukkan bahwa preferensi positif terhadap jalan tol pada periode ramp-up tidak selalu terkait dengan kemacetan lalu lintas seperti di wilayah perkotaan yang padat, keberadaan lalu lintas tamasya sangat potensial mempengaruhi. Kata-kata kunci: Perilaku pemilihan rute, model logit-biner, jalan tol, periode ramp-up
Co-Authors Ade Sjafruddin Aine Kusumawati Burhani, Jzolanda Tsavalista Estiyani Windra Kusumowardani Ferry Rusgiyarto Ferry Rusgiyarto Gunawan Wicaksono Harun Al Rasyid S. Lubis, Harun Al Rasyid S. Khaerul Ikhsan, Robby Septiandi Maulana, Andrean Muhammad Farda Purwanti, Oka Russ Bona Frazila Russ Bona Frazila Samantha Ag, Rafika Almira Santoso, Satya Ananda Sjaruddin, Ade Sony S . Wibowo Sony S . Wibowo Sony Sulaksono Wibowo Taufiq Suryo Nugroho Weka Indra Dharmawan Wicaksono, Gunawan