Ded Rekonstruksi Jalan Bluluk – Sukorame

Ded Reconstruction of Bluluk – Sukorame Road

Abstract

This study examines the redesign of the Bluluk-Sukorame road section in Lamongan Regency, East Java, which has suffered severe damage due to heavy traffic loads, lack of maintenance, and inadequate drainage. The objectives of the study were to determine the optimal pavement thickness, using both flexible and rigid pavement approaches, and to analyze the reconstruction budget requirements. The methods used included analysis of average daily traffic (ADR), traffic growth factors, design life, and soil testing using a Dynamic Cone Penetrometer (DCP) to obtain the CBR value of the subgrade. Calculations were performed using the 2017 Bina Marga Flexible Pavement Design Guidelines and the Cement Concrete Road Pavement Guidelines Pd T-14-2003.

The results indicate that the total required flexible pavement thickness is 53 cm, with a composition of Laston layers (AC-WC, AC-BC, AC-Base) and aggregates for the top and bottom foundations. Meanwhile, the rigid pavement design resulted in a concrete slab thickness that takes into account repeated traffic loads, concrete flexural tensile stresses, and subbase requirements. A cost analysis indicates that the road reconstruction budget requirement reaches IDR 30.6 billion, with a life cycle cost evaluation highlighting the importance of long-term maintenance efficiency.

This research is expected to serve as a technical reference for road reconstruction planning in areas with similar traffic characteristics. By implementing appropriate pavement design, road service life can be extended, costs can be optimized, and transportation sustainability and local economic growth can be better assured.