Identification of National Road Maintenance Needs Based on Strategic Plan of Directorate General of Bina Marga (2015-2019)

Ardhiarini, Rizky · 2016 · DOAJ

DOI: 10.22146/jcef.26583

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Summary

This study addresses the need for a proactive, strategic approach to national road maintenance in South Sumatra, Indonesia, moving away from reactive, year-by-year budgeting. Motivated by the Directorate General of Bina Marga’s 2015–2019 Strategic Plan and the Master Plan for Acceleration and Expansion of Indonesia's Economic Development (MP3EI), the research aims to identify maintenance necessities that optimize road performance and pavement conditions. The primary objective is to enhance connectivity along economic corridors by ensuring roads meet specific performance targets, such as travel speeds exceeding 60 km/h and travel times under 1.6 hours per 100 km. The methodology employs Multi-Criteria Analysis (MCA) to evaluate the national road network in South Sumatra from 2015 to 2019. The analysis integrates two main categories: technical road conditions and the development importance of the areas traversed. Technical parameters include roadway width, traffic flow, Volume/Capacity (V/C) ratio, travel speed, travel time, International Roughness Index (IRI), and Surface Distress Index (SDI). These variables are rated on a scale from 1 to 6. Area importance is assessed based factors such as proximity to national strategic areas, economic corridors, and tourism zones, rated on a scale of 1 to 4. The MCA combines these scores to prioritize maintenance programs, including routine maintenance, rehabilitation, reconstruction, and capacity enhancement (widening). The results indicate that maintenance needs were overwhelmingly dominated by routine maintenance. In 2015, routine maintenance accounted for 95.86% of the total road length, with this figure rising to nearly 100% from 2016 to 2019. Significant achievements were recorded in structural and pavement conditions: by 2019, 100% of the road length achieved a minimum width of 7.0 meters, and 90.37% met the IRI target of less than 4.0 m/km. Additionally, 97.83% of the network achieved a V/C ratio below 0.75. However, performance targets related to speed and travel time remained largely unmet. Only 18.50% of the road length achieved travel speeds greater than 60 km/h, and merely 17.32% met the travel time target of less than 1.6 hours per 100 km. The study concludes that while the proposed management program successfully improved pavement quality and roadway width, it failed to significantly enhance travel speed and reduce travel time. This discrepancy is attributed to the absence of maintenance requirements addressing substandard road geometry, which limits vehicle speed despite good pavement conditions. The findings suggest that future road management programs must incorporate geometric improvements, such as flyovers, underpasses, or bypasses, and require more detailed segment-by-segment analysis to effectively meet performance targets for economic connectivity.

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