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All Journal Jurnal Transportasi Enrichment: Journal of Multidisciplinary Research and Development
Purwantoro, Agus Budi
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Humanities Economics, Econometrics & Finance Engineering Health Professions Social Sciences Transportation

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ANALISIS LOKASI RAWAN KECELAKAAN REM BLONG Permatasari, Regita Intan; Budiharjo, Anton; Purwantoro, Agus Budi
Jurnal Transportasi Vol. 23 No. 3 (2023): Jurnal Transportasi
Publisher : Forum Studi Transportasi antar Perguruan Tinggi (FSTPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26593/jtrans.v23i3.7549.157 - 167

Abstract

Repeated brake failure accidents occur on the Buntu-Banyumas Road section, which features a 1 km downhill geometric condition. The braking force required increases with a vehicle's weight, speed, and elevation. This research aims to identify the causes of brake failure accidents related to the long downhill geometric condition of the road. The methods include fault tree analysis, road accident mapping, and safe speed calculation. The data used have road geometric data, vehicle speed, and vehicle weight. The research findings indicate that brake failure accidents on the Buntu-Banyumas Road section are caused by driver behavior, repeatedly applying brakes on a road with a slope exceeding the critical maximum gradient, leading to overheating and brake failure. Road authorities must maintain guardrails, install speed limit signs, and implement emergency escape ramps. ABSTRAK Kecelakaan rem blong terjadi secara berulang pada ruas Jalan Buntu-Banyumas yang memiliki kondisi geometrik berupa turunan sepanjang 1 km. Semakin berat suatu kendaraan, semakin tinggi kecepatan kendaraan dan semakin tinggi posisi kendaraan maka semakin besar daya pengereman yang dibutuhkan. Penelitian ini memiliki tujuan untuk mengetahui penyebab kecelakaan rem blong terkait dengan kondisi geometrik jalan berupa turunan panjang. Metode yang digunakan berupa Fault Tree Analysis, Road Accident Mapping dan perhitungan kecepatan aman. Data yang digunakan berupa data geometrik jalan, kecepatan kendaraan, dan berat kendaraan. Hasil penelitian menunjukan bahwa penyebab kecelakaan rem blong pada ruas Jalan Raya Buntu-Banyumas disebabkan karena perilaku pengemudi yang melakukan pengereman secara berulang pada kondisi jalan yang menurun melebihi batas maksimal kelandaian kritis sehingga menimbulkan overheat dan rem blong. Penanggung jawab jalan perlu memelihara guardrail, pemasangan rambu batas kecepatan dan emergency escape ramp.
Towards Smart Transportation: The Impact Of Transportation Policies On Mobility In The Outskirts (Case Study: Mijen Suburban Area In Semarang City) Purwantoro, Agus Budi; Ariani, Firga; Hutama, Adhiyaksa Satria
Enrichment: Journal of Multidisciplinary Research and Development Vol. 2 No. 7 (2024): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v2i7.179

Abstract

This study evaluates the success of transportation policies in addressing increased travel frequency, expanded travel distribution, and changes in transportation mode choices to achieve sustainable suburban transportation. The research was conducted through a mobility analysis survey in Mijen District, Semarang City, Indonesia. Data collection focused on two main areas: first, travel frequency was analyzed using a trip generation model (Y), factoring in variables such as car ownership (X1), motorcycle ownership (X2), travel efficiency (X3), safety (X4), comfort (X5), and environmental friendliness (X6) of public transport. Second, travel distribution and mode choice were analyzed to understand community preferences for travel destinations and modes of transport. The findings revealed that land use changes in Mijen resulted in a 32% improvement in road quality and increased mobility. Recent transportation policies, such as the introduction of Bus Rapid Transit (BRT) and online transportation services, significantly influenced mobility. Mobility grew by 23.8% per year, with changes in the travel frequency model: Y = 1.957 before BRT (2012-2014), Y' = 1.927 after BRT (2014-2016), and Y'' = 1.860 after online transportation (2016-present). Transportation service demand and capacity were balanced, with load factors of 69.7% before BRT, 54.1% after BRT, and 72% after online transportation. The share of public transport users increased from 36% before BRT to 60% after online transportation services. This research contributes to developing smart city and transportation concepts by providing insights into the impact of transportation policy changes in suburban areas.
Co-Authors Ariani, Firga Budiharjo, Anton Hutama, Adhiyaksa Satria Permatasari, Regita Intan