Marbun, Frendy Moranatha (2025) Pengaruh Waktu Siklus Terhadap Efektivitas Dan Efisiensi Alat Berat Pada Pembangunan Jalan Bandar Picak (batas Kabupaten Rohul) – Pendalian - Rokan. Other thesis, Universitas Islam Riau.

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Abstract

Infrastructure development is one of the government's efforts to improve the quality of life of the community and encourage economic growth in each region. Flexible roads are one of the infrastructure developments. In the implementation of large-scale flexible road development, heavy equipment is needed to facilitate human work. In its implementation, the cycle time of heavy equipment has an influence on the productivity of each heavy equipment. The purpose of this study is to determine the activities of heavy equipment, determine the cycle time of heavy equipment, determine the productivity of heavy equipment, and determine the effect of cycle time on the productivity of heavy equipment. The method used in productivity analysis is the time study method. The time study method is a work measurement technique by collecting data based on the time needed to complete a job. Based on the results of the Analysis on the AC-BC layer and the AC-WC layer. On the AC-BC layer, for dump trucks with a cycle time of 239.39 minutes and a productivity analysis of 3.81 tons/hour, Asphalt finisher with a cycle time of 7.66 minutes and a productivity of 120.495 tons/hour, Tandem roller with a cycle time of 3.03 minutes and a productivity of 116.119 tons/hour, and pneumatic tire roller with a cycle time of 2.81 minutes and a productivity of 76.708 tons/hour. Analysis Results on AC-WC Layer, for dump trucks with a cycle time of 237.72 minutes and a productivity analysis of 3.835 tons/hour, Asphalt finisher with a cycle time of 15.7 minutes and a productivity of 58.433 tons/hour, Tandem roller with a cycle time of 3.63 minutes and a productivity of 66.045 tons/hour, and pneumatic tire roller with a cycle time of 3.47 minutes and a productivity of 41.396 tons/hour. The effect of cycle time on productivity is where the longer the cycle time, the smaller the productivity. Field analysis obtained a total cost of renting heavy equipment for AC-BC and AC-WC asphalt layer work of 106.071.506,72 rupiah, while the total cost of renting heavy equipment according to the implementation time schedule was 551,740,610.4 rupiah, The difference in total rental costs between the analysis and the planner according to the time schedule was 445.669.103,68 rupiah.

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