Comparative Analysis of Cost and Time in the Implementation of Rigid and Flexible Road Pavements on the Sambeng–Kedewan Road Section, Bojonegoro Regency

Abstract

The Sambeng–Kedewan area in Bojonegoro Regency is an agrarian region that is developing in both the agricultural and energy sectors. However, it faces challenges in road infrastructure. Inadequate road access affects the distribution of agricultural products and logistical efficiency, particularly in the Kasiman and Kedewan sub-districts. Therefore, an evaluation of the most technically and economically feasible type of pavement is required. This study utilizes the 2017 Manual for Pavement Design (MDPJ) for flexible pavement and the PDT-14 2003 guidelines for rigid pavement. The analysis is based on several collected data, including soil data, average daily traffic, and design life spans of 20 and 40 years. The comparison covers aspects such as pavement structure, thickness, estimated construction time, and cost estimation (RAB). The research results show that for a 20-year design life, the cost of flexible pavement is IDR 14,968,896,000, while the cost of rigid pavement is IDR 12,154,372,000—resulting in a cost efficiency difference of IDR 2,814,524,000 or 18.8%. For a 40-year design life, the cost of flexible pavement reaches IDR 27,358,928,000, while rigid pavement costs IDR 18,974,693,000, indicating a cost efficiency of IDR 8,384,235,000 or 30.6%. In terms of time, flexible pavement requires 98 days to construct, whereas rigid pavement takes 110 days. Thus, rigid pavement demonstrates greater long-term cost efficiency, although it requires slightly more construction time.