CRISAFA, AFDAN NASHA (2026) PEMANFAATAN KONTUR DIGITAL HASIL FOTOGRAMETRI UNTUK PERENCANAAN RE-ALIGNMENT JALAN (STUDI KASUS : RUAS JALAN SIGAR BENCAH KOTA SEMARANG). S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
This study was conducted on the Imam Soeparto Road section (Sigar Bencah), Semarang City, which is identified as having existing geometric conditions that may not fully comply with the Circular Letter of the Director General of Highways No. 20 of 2021 on Road Geometric Guidelines, thereby potentially increasing traffic accident risk. This research aims to: (1) evaluate the compliance of existing road geometric elements with the applicable standards, (2) analyze the relationship between road geometric conditions and accident occurrence using the Equivalent Accident Number (EAN) method, and (3) develop a safer road realignment alternative based on photogrammetry-derived digital contour data using Autodesk Civil 3D. The research variables include variable X, representing road geometric conditions (curve radius and longitudinal grade), and variable Y, representing accident level expressed through EAN values. Primary data were obtained from a photogrammetry survey covering approximately ±200 ha, consisting of 3,215 aerial photographs and 15 Ground Control Points (GCPs). Secondary data were accident records for the period 2021–2025, obtained from the Semarang Police Traffic Unit. The sampling technique applied was purposive sampling, where the study location was selected due to its accident-prone characteristics and steep terrain conditions. The results indicate that several road segments do not meet the minimum geometric criteria, particularly regarding curve radius and maximum longitudinal grade, suggesting a potential contribution to accident occurrence. The proposed realignment provides an alternative alignment that better satisfies geometric standards and is expected to improve road user safety and driving comfort. Keyword: Photogrammetry, DTM, Road Geometry, Realignment, Civil 3D Penelitian ini dilakukan pada Ruas Jalan Imam Soeparto (Sigar Bencah), Kota Semarang, yang teridentifikasi memiliki kondisi geometrik eksisting yang diduga belum sepenuhnya memenuhi ketentuan Surat Edaran Direktur Jenderal Bina Marga No.20 Tahun 2021 tentang Pedoman Geometrik Jalan, sehingga berpotensi meningkatkan risiko kecelakaan lalu lintas. Penelitian ini bertujuan untuk: (1) mengevaluasi kesesuaian elemen geometrik jalan eksisting terhadap standar yang berlaku, (2) menganalisis keterkaitan kondisi geometrik dengan angka kecelakaan menggunakan metode Equivalent Accident Number (EAN), serta (3) merencanakan alternatif desain re-alignment yang lebih aman berbasis kontur digital hasil fotogrametri menggunakan Autodesk Civil 3D. Variabel penelitian meliputi variabel X berupa kondisi geometrik jalan (radius tikungan dan kelandaian memanjang), serta variabel Y berupa tingkat kecelakaan yang dinyatakan dalam nilai EAN. Data primer diperoleh melalui survei fotogrametri seluas ±200 ha dengan 3.215 foto udara dan 15 titik Ground Control Point (GCP), sedangkan data sekunder berupa rekap kecelakaan periode 2021–2025 dari Satlantas Polrestabes Semarang. Teknik pengambilan sampel menggunakan purposive sampling dengan pemilihan lokasi berdasarkan karakteristik ruas rawan kecelakaan dan kondisi medan menanjak. Hasil analisis menunjukkan beberapa segmen jalan tidak memenuhi kriteria geometrik minimum, terutama pada jari-jari tikungan dan kelandaian maksimum, yang mengindikasikan adanya potensi pengaruh terhadap kejadian kecelakaan. Alternatif re-alignment yang direncanakan menghasilkan trase yang lebih sesuai standar, sehingga diharapkan dapat meningkatkan keselamatan dan kenyamanan pengguna jalan. Kata Kunci : Fotogrametri; DTM; Geometrik Jalan; Re-Alignment; Civil 3D
| Item Type: | Thesis (S1) |
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| NIM/NIDN Creators: | 41123120073 |
| Uncontrolled Keywords: | Fotogrametri; DTM; Geometrik Jalan; Re-Alignment; Civil 3D |
| Subjects: | 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 622 Mining and Related Operations/Operasi Pertambangan dan Operasi Terkait > 622.5 Mine Drainage/Drainase Pertambangan 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 624 Civil Engineering/Teknik Sipil 700 Arts/Seni, Seni Rupa, Kesenian > 720 Architecture/Arsitektur > 721 Architectural Structure/Struktur Arsitektur > 721.8 Other Elements/Elemen Lainnya > 721.84 Extensions/Jalan Pintas |
| Divisions: | Fakultas Teknik > Teknik Sipil |
| Depositing User: | khalimah |
| Date Deposited: | 20 Feb 2026 04:27 |
| Last Modified: | 20 Feb 2026 04:27 |
| URI: | http://repository.mercubuana.ac.id/id/eprint/101044 |
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