Authors : Franky Unmehopa; Andi Asnudin; Adnan Fadjar

Volume/Issue : Volume 11 - 2026, Issue 6 - June

Google Scholar : https://tinyurl.com/2rspb3pt

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DOI : https://doi.org/10.38124/ijisrt/26jun928

Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.

Abstract : Inter-regional connectivity, population mobilization, and smooth logistics distribution are highly dependent on the existence of secondary arterial roads. However, the process of designing this infrastructure in Palu City faces significant challenges due to environmental uncertainty stemming from the city's vulnerability to natural disasters, including earthquakes, tsunamis, liquefaction, and floods. The lack of optimal integration of risk management in the road project design phase exacerbates this phenomenon. To overcome these problems, this study is designed to map various triggering factors, determine the dominant risk level in the secondary arterial road project in Palu City, identify the sequence of preventive measures, and determine the risk tolerance limit in accordance with ISO 31000:2018. The preparation of this study applies a qualitative descriptive method by raising specific cases in the planning of secondary arterial roads in the Palu City area. The field investigation relied on a combination of instruments, including questionnaires, in-depth interviews, direct observations, and secondary document review. All collected data passed reliability and validity tests before being analyzed using descriptive techniques and risk matrix mapping, which combined probability parameters and impact magnitude in accordance with ISO 31000:2018 guidelines. The inventory session successfully captured 24 types of risk across five major groups: technical dimensions, environmental aspects, social dynamics, economic conditions, and institutional governance. Using matrix calculations, 15 risk variables had high (significant) values, while the other 9 were at medium levels. The priority of mitigation actions is fully directed to the high-risk group, which is divided into 4 parameters (16) and 11 parameters (12). The medium-level risk group comprises 8 parameters with a score of 9 and 1 parameter with a score of 6. The final findings confirm that the internalization of ISO 31000:2018 principles during the secondary arterial road planning period is crucial to sharpen policy accuracy, minimize technical constraints on the ground, and realize the provision of resilient and sustainable infrastructure. As a next step, the research agenda is recommended to formulate a more detailed mitigation scheme and expand the scope of the investigation to include the physical and operational development stages of the road.

Keywords : Risk Management, ISO 31000:2018, Road Infrastructure Planning, Secondary Arterial Roads, Risk Mitigation.

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