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All Journal Jurnal Konstruksi
Walujodjati , Eko
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Civil Engineering, Building, Construction & Architecture

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Pengaruh Karakteristik Lalu Lintas terhadap Kondisi Perkerasan Jalan Menggunakan IRI dan SDI Mulyana, Subhan; Walujodjati , Eko; Fauzyah, Salma
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2871

Abstract

Population growth and increased economic activity have led to higher traffic volumes on roads, including on Jalan Limbangan–Leuwigoong in Garut Regency. This condition puts excessive pressure on flexible pavements, causing damage, reducing driving comfort, and increasing maintenance costs. This study aims to analyze the effect of vehicle volume and speed on road conditions using the International Roughness Index (IRI) and Surface Distress Index (SDI) indicators. Data were collected through traffic surveys, speed measurements, the RoadLab Pro application for IRI, and visual surveys based on Bina Marga guidelines for SDI. Simple linear regression analysis was used after classical assumption tests were not met in multiple regression. The results showed that vehicle volume and speed did not significantly affect IRI. Conversely, both had a significant effect on SDI, with a strong relationship: volume (R = 0.740; R² = 54.8%) and speed (R = 0.759; R² = 57.5%). This study confirms that traffic characteristics have a greater effect on road surface damage (SDI) than road roughness (IRI).
Co-Authors Fauzyah, Salma Mulyana, Subhan