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Julianto Lubis
Universitas Graha Nusantara
Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education Social Sciences

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ANALISIS PENINGKATAN RUAS JALAN DESA TATENGGER KECAMATAN ANGKOLA MUARA TAIS KABUPATEN TAPANULI SELATAN Alfiansyah Harahap; Julianto Lubis; Ferawati Artauli Hasibuan
STATIKA Vol. 9 No. 1 (2026): Statika Vol 9 No 1 April 2026
Publisher : Fakultas Teknik Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/statika.v9i1.1802

Abstract

Roads are one of the most important land transportation infrastructures; therefore, a good pavement design is essential. In addition to connecting one place to another, a well-designed road pavement is also expected to provide safety and comfort for drivers, especially in supporting smooth traffic flow. The high growth of traffic resulting from economic development can create serious problems if it is not balanced with improvements in the quality of existing road facilities and infrastructure. Therefore, road conditions greatly affect the comfort and safety of every road user. The objective of this thesis is to identify the types of damage found on the Tatengger Village Road section in Angkola Muara Tais and to determine the appropriate maintenance treatment and the required thickness of flexible pavement for future road improvement or rehabilitation. The methods used in this research are the Indonesian Highway Capacity Manual Method and the component analysis method. Based on the results of the data analysis, it can be concluded that the types of damage found on the Tatengger Village Road section in Angkola Muara Tais include hairline cracks, potholes, patches, alligator cracks, waves, depressions, and longitudinal cracks, with a total damage percentage of 6.11%. The appropriate maintenance treatment is routine maintenance. Meanwhile, the required flexible pavement thickness for future improvement or rehabilitation consists of a 5 cm surface layer, a 20 cm base course layer, and a 10 cm subbase layer, with a planned service life of 20 years.
Sosialisasi Sistem Informasi Manajemen Dan Analisis Data Daerah Aliran Sungai (DAS) Terintegrasi Untuk Mendukung Rehabilitasi Lahan Dan Pengendalian Banjir Didas Desa Garoga Noni Paisah; Erwina Azizah Hasibuan; Sahrul Harahap; Julianto Lubis
Jurnal Pengabdian kepada Masyarakat Radisi Vol 6 No 1 (2026)
Publisher : Yayasan Kajian Riset dan Pengembangan RADISI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55266/pkmradisi.v6i1.668

Abstract

The flash flood that struck Garoga Village, Batang Toru District, South Tapanuli Regency, North Sumatra, on November 25, 2025, was one of the most severe hydrometeorological disasters in the region over the past three decades. The disaster caused 43 fatalities, displaced hundreds of residents, and cut off road access for 23 days. Studies indicate that the disaster was triggered by severe ecological degradation in the upper Batang Toru Watershed, including 72,938 hectares of deforestation between 2016 and 2024 and the absence of an integrated watershed monitoring system at the village level. This community service program aimed to implement a WebGIS-based Integrated Watershed Management Information System (SIMDAST), develop a participatory spatial watershed database, and strengthen community capacity in watershed monitoring and flood preparedness. Activities included field surveys, hydrological data collection, Sentinel-2 land cover mapping, WebGIS development, and participatory training involving 20 participants. SIMDAST was successfully implemented with five functional modules. Spatial analysis identified 138 hectares of critical land requiring rehabilitation, while forest cover remained only 31% of the watershed area. Furthermore, 87% of participants were able to operate the system independently, with knowledge scores increasing by 114.7%. SIMDAST proved effective in supporting community-based watershed management and improving flood preparedness.
Co-Authors Alfiansyah Harahap Erwina Azizah Hasibuan, Erwina Azizah Ferawati Artauli Hasibuan Noni Paisah Sahrul Harahap