Critical Gap Estimation and its Implication on Capacity and Safety of High-Speed Un-Signalized T-Intersection Under Mixed Traffic Conditions

Bhatt, Khushbu; Gore, Ninad; Shah, Jiten

doi:10.2139/ssrn.4043689

Cited by 2 publications

(1 citation statement)

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“…Pengambilan data dilakukan selama 7 hari, dengan interval pengamatan 15 menit dan durasi 5 jam/hari (pukul 07.00-12.00). Pada model kapasitas berdasarkan Gap acceptance, nilai Gap kritis yang rendah, menghasilkan nilai kapasitas yang tinggi (Bhatt et al, 2022). Dalam penelitian ini, perhatian utama ditujukan pada nilai Gap kritis untuk kendaraan ringan, karena kemampuan manuver Lokasi Penelitian sepeda motor dan kendaraan berat bisa memengaruhi distribusi rata-rata celah pada arus lalu lintas secara keseluruhan, yang kemudian akan berdampak pada penentuan kapasitas.…”

Section: Metode Pengambilan Dataunclassified

Analisis Kinerja Bukaan Median (U-Turn) Berdasarkan Model Kapasitas Siegloch dan Harder

Purnama,

Rustan,

Puspaningtyas

2024

Borneo.Engineering

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Bukaan median di Jalan Jenderal Sudirman, Pomalaa, Kabupaten Kolaka, menghadapi tantangan unik terkait proporsi penggunaannya karena berperan sebagai titik akhir jalur alternatif terpendek dari pelabuhan menuju area pertambangan PT ANTAM dan PT VALE. Fasilitas ini menerima beban lalu lintas dari jalur bypass dan arah menuju Kabupaten Kolaka Timur. Penelitian ini menggunakan pendekatan Gap acceptance dengan model kapasitas Siegloch dan Harder untuk menganalisis kinerja fasilitas bukaan median.Hasil analisis menunjukkan bahwa nilai gap kritis dan arus lawan melebihi batas yang disyaratkan, sementara kinerja fasilitas putar balik arah pada jam puncak sangat rendah. Model kapasitas Siegloch dan Harder memberikan hasil kapasitas hampir identik, dengan pengaruh yang signifikan pada nilai gap kritis dan jumlah arus arah lawan terhadap kapasitas fasilitas. Dari data yang dianalisis, terungkap bahwa kinerja fasilitas bukaan median kurang memuaskan pada interval waktu antara pukul 07:00 hingga 08:30. Dengan nilai DS0.85Â Hal tersebut juga diperkuat dari nilai gap kritis yang mencapai 14.12 detik, melampaui standar rentang headway antar kendaraan untuk ruas 4/2 D sebesar 14 detik. serta nilai arus lawan maksimum mencapai 600 skr/jam pada putaran balik, menunjukkan kondisi yang melampaui batas maksimum yang ditetapkan sebesar 500 Skr/jam.

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Section: Metode Pengambilan Dataunclassified

Analisis Kinerja Bukaan Median (U-Turn) Berdasarkan Model Kapasitas Siegloch dan Harder

Purnama,

Rustan,

Puspaningtyas

2024

Borneo.Engineering

View full text Add to dashboard Cite

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Drivers’ Dilemma at High-Speed Unsignalized Intersections

Bhatt

Gore

Shah

et al. 2023

Transportation Research Record: Journal of the Transportation R

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At unsignalized intersections, drivers typically reject smaller gaps and accept larger gaps in traffic. However, drivers experience a dilemma or confusion over a wide range of gaps, since incorrect decisions by them can lead to crashes. The present study quantifies the drivers’ dilemma at high-speed unsignalized intersections. Traffic data on gap size (temporal and spatial), driver’s decision (acceptance or rejection), the waiting time of the offending vehicle, the offending and conflicting vehicle types, and the speed of the conflicting vehicle are extracted from recorded video. The decisions by drivers to accept or reject gaps are modeled as a function of the gap size, the waiting time of the offending vehicle, and the speed of the conflicting vehicle using binary logit regression. The results reveal that the probability of rejection decreases as the gap size and waiting time of the subject vehicle increases. On the contrary, as the speed of the conflicting vehicle increases, the probability of rejection increases. The length and location of the dilemma zone were investigated using vehicle type, right-turning movement, and the speed of the conflicting vehicle, and a significant effect was noted. Moreover, the length and location of the dilemma zone are analytically quantified based on drivers’ compliance with a driver assistance system (DAS). The length of the dilemma decreases as the proportion of drivers’ compliance with the DAS increases. Further, the location of the dilemma zone shifts upstream of the intersection with an increase in drivers’ compliance with the DAS.

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Critical Gap Estimation and its Implication on Capacity and Safety of High-Speed Un-Signalized T-Intersection Under Mixed Traffic Conditions

Cited by 2 publications

References 0 publications

Analisis Kinerja Bukaan Median (U-Turn) Berdasarkan Model Kapasitas Siegloch dan Harder

Analisis Kinerja Bukaan Median (U-Turn) Berdasarkan Model Kapasitas Siegloch dan Harder

Drivers’ Dilemma at High-Speed Unsignalized Intersections

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