Road Condition Assessment Using SDI and IRI Methods in Brigjend. Pol. Imam Bachri Hadi Pranoto Street, Kediri

Abstract

Roads are essential infrastructure that support community mobility and economic growth. Road damage can reduce comfort, safety, and service life. One of the road segments in Kediri City that has suffered damage is Brigjend. Pol. Imam Bachri Hadi Pranoto Street, which serves a strategic function as an access route for distribution and tourism. This study aims to analyze road damage conditions using the Surface Distress Index (SDI) and International Roughness Index (IRI). The method employed involves surveys SDI assessment based on visual observations of the type and severity of surface damage. The IRI was measured using the Roadroid application to quantify road roughness. The condition of Brigjend. Pol. Imam Bachri Hadi Pranoto Street in Kediri City has an average SDI value of 110, indicating a lightly damaged condition that requires a Road Rehabilitation Program. The average IRI value obtained is 5.08, which falls into the moderately damaged category, thus necessitating a Periodic Maintenance Program. These differences between the two methods arise because the IRI value is derived from the vibrations experienced on the tire surface, which does not capture the entire surface condition, while the SDI is determined through visual assessment and weighted scoring.