FADILLAH, FADLAN (2025) ANALISIS PERBANDINGAN DATA LIDAR DENGAN METODE AERIAL MAPPING DAN GNSS DENGAN METODE TERRESTRIS UNTUK PERENCANAAN KONSTRUKSI JALAN TOL (Studi Kasus : Proyek Pembangunan Jalan Tol Transpapua Trase Memberamo - Elelim). S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
This study addresses the challenges of topographic data acquisition in extreme terrains for the Trans Papua Toll Road (Mamberamo–Elelim section), where conventional terrestrial surveys (GNSS/Total Station) are time-consuming, pose safety risks, and have limited coverage. The aim is to compare the accuracy, time efficiency, and costeffectiveness of LiDAR (Light Detection and Ranging) aerial mapping with terrestrial surveys. Data were collected via UAV DJI M300 RTK with GreenValley X3C-H LiDAR sensor and terrestrial GNSS surveys at 20 control points. LiDAR data processing included trajectory matching, boresight calibration, ground point classification, DEM generation, and contour extraction. Analyses covered vertical accuracy testing, survey time and cost comparison, and cut-and-fill volume estimation. Results show LiDAR achieved RMSE 0.100 m, mean error 0.010 m, and absolute accuracy 0.165 m at 95% confidence, meeting BIG Regulation No. 1/2020 standards. The LiDAR survey was completed in ±10 days, faster than terrestrial methods (±40 days), reducing costs by ~9.04% (IDR 83,000/ha). Earthwork volumes were more realistic, with a construction cost difference of IDR 2.28 billion. LiDAR is recommended for large-scale infrastructure projects in hard-to-access areas. Keywords: cost efficiency, LiDAR, road infrastructure, terrestrial survey, topographic mapping, vertical accuracy Penelitian ini membahas tantangan pengambilan data topografi di medan ekstrem pada perencanaan Jalan Tol Trans Papua ruas Mamberamo–Elelim, di mana metode survei konvensional (GNSS/Total Station) memakan waktu lama, berisiko terhadap keselamatan, dan terbatas cakupannya. Tujuan penelitian adalah membandingkan akurasi, efisiensi waktu, dan biaya metode LiDAR (Light Detection and Ranging) dengan aerial mapping terhadap survei terestris. Data dikumpulkan melalui survei udara menggunakan UAV DJI M300 RTK dengan sensor GreenValley X3C-H LiDAR, serta survei terestris pada 20 titik kontrol GNSS. Data LiDAR diolah melalui trajectory matching, kalibrasi boresight, klasifikasi titik tanah, pembuatan DEM, dan ekstraksi kontur. Analisis meliputi uji akurasi vertikal, perbandingan waktu, biaya, dan estimasi volume cut and fill. Hasil menunjukkan LiDAR memiliki RMSE 0,100 m, mean error 0,010 m, dan akurasi absolut 0,165 m pada tingkat kepercayaan 95% (memenuhi standar BIG No. 1/2020). Survei LiDAR selesai ±10 hari, lebih cepat dari metode terestris ±40 hari, serta menghemat biaya ±9,04% (Rp 83.000/ha). Estimasi volume tanah lebih realistis, dengan selisih biaya konstruksi Rp 2,28 miliar. LiDAR direkomendasikan untuk proyek besar di wilayah sulit diakses. Kata Kunci: akurasi vertikal, efisiensi biaya, infrastruktur jalan, LiDAR, pemetaan topografi, survei terestris.
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