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All Journal BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan
Andhy Romdani
Jurusan Teknik Sipil, Fakultas Teknik, Universitas Siliwangi
Automotive Engineering Civil Engineering, Building, Construction & Architecture Education Energy Engineering Transportation Other

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PERFORMANCE ANALYSIS OF UNSIGNALIZED INTERSECTION OF DELAY USING GAP ACCEPTANCE METHOD Fajrina Aghnia Sya’bani; Andhy Romdani
PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan Vol. 12 No. 1 (2026): Journal Parentas Edisi Januari-Juni 2026
Publisher : Jurusan Pendidikan Teknologi Dan Kejuruan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/parentas.v12i1.26762

Abstract

Traffic movement problems often occur during peak hours in the morning to evening in Tasikmalaya City, as happened at the intersection of Ahmad Yani Street-Mohammad Hatta Street. The dense traffic flow at the intersection is due to Ahmad Yani Street-Mohammad Hatta Street is a connecting road between Ciamis Regency and Tasikmalaya City, this road is one of the accesses to the center of the economy, offices, to education. The condition of Ahmad Yani Street-Mohammad Hatta Street which is often traversed by large to small vehicles adds to the traffic density on the road. Gap acceptance is a state when the driver feels that he can safely perform the movement of joining the mainstream. While gap rejection is a situation when the driver slows down the speed of his vehicle due to a gap that is too small so he has to wait to be able to join the main stream. From the results of the study for 16 days obtained a critical gap value at the intersection of Ahmad Yani Street-Mohammad Hatta Street amounted to 7.50 seconds and the delay time to the crossing conflict at the intersection of three no signal using the gap acceptance method is equal to 12,37 seconds. Meanwhile, with the Indonesian Road Capacity Guideline Method 2023, a delay value of 10,01 seconds/SMP is obtained.
ANALYSIS OF COORDINATION BETWEEN SIGNALLED INTERSECTIONS (CASE STUDY: RANCABANGO INTERSECTION AND BANTAR INTERSECTION, TASIKMALAYA CITY) Mentari Pagi Febriana; Andhy Romdani; Empung
PARENTAS: Jurnal Mahasiswa Pendidikan Teknologi dan Kejuruan Vol. 11 No. 2 (2025): Journal Parentas Edisi Juli-Desember 2025
Publisher : Jurusan Pendidikan Teknologi Dan Kejuruan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/parentas.v11i2.23769

Abstract

The large number of intersections in Tasikmalaya City, particularly the nearby Rancabango and Bantar intersections, causes vehicles to frequently stop at each intersection due to red lights. To reduce delays and queues, an analysis of coordination between signalized intersections was conducted. Data was collected through field surveys conducted from April 21, 2025, to May 6, 2025, covering geometric data, signal timing, traffic volume, and vehicle speed. The analysis was conducted using the 2023 Indonesian Road Capacity Guidelines. The results showed that the two intersections were not yet coordinated. From the three plans, a new cycle time of 71 seconds was obtained with an offset of 60 seconds between the Rancabango Intersection and the Bantar Intersection and a bandwidth of 18 seconds for the direction of movement from the Rancabango Intersection to the Bantar Intersection and 31 seconds for the opposite direction. With the implementation of coordination between signalized intersections, intersection performance showed improvement, marked by a decrease in vehicle queue length from 69.22 meters to 62.39 meters and a decrease in average delay from 36.75 seconds/SMP to 35.63 seconds/SMP.
SOIL IMPROVEMENT ANALYSIS FOR CONTAINER YARD USING PREFABRICATED VERTICAL DRAINS (PVD) AND PRELOADING: A CASE STUDY OF RECLAIMED LAND IN THE MADURA STRAIT Muhammad Teja Pribadi Pamungkas; Andhy Romdani; Zakwan Gusnadi; Hery Setiyaji; Daniel Bara Padang Allo
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 14 No. 1 (2026): Journal Balanga Edisi Januari-Juni 2026
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v14i1.26433

Abstract

This study aims to analyze the effectiveness of the Prefabricated Vertical Drain (PVD) and Preloading methods in accelerating the consolidation process and improving subgrade stability. The analysis was conducted using two-dimensional Finite Element Method (FEM 2D) software. The soil conditions were dominated by clay with varying consistency to the SPT test depth. The simulation results showed that under unimproved conditions, the 90% settlement reached 1,34 m with a consolidation time of approximately ±39 years and landslides occurred on the slope, indicating unstable conditions. After improvement, the main settlement of 1,64 m occurred during a waiting period of 420 days. The remaining settlement during the operational period was 27,84 cm, still below the design limit of 30 cm, with the FK value increasing to 1,617 (FK > 1.3) during the construction period and 1,617 (FK > 1,5) during the operational period. The results show that the combination of PVD and preloading methods effectively accelerates consolidation, controls settlement, and improves the stability of soft soil in container terminal reclamation projects
Co-Authors Daniel Bara Padang Allo Empung Fajrina Aghnia Sya’bani Hery Setiyaji Mentari Pagi Febriana Muhammad Teja Pribadi Pamungkas Zakwan Gusnadi