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Tjutjup Suparna, Balikpapan City","","Urban road infrastructure requires periodic planning and maintenance to ensure serviceability and public safety. Jalan H. Tjutjup Suparna, a main road in Balikpapan City, is selected for a planned asphalt overlay to address surface degradation and enhance driving comfort. The study reviews the technical design and estimates project cost using engineering drawings and Bill of Quantity (BoQ) data. It analyzes design dimensions, pavement layer composition, and related unit costs to assess documentation efficiency. 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Tjutjup Suparna, Balikpapan City  \nLogiska Pakartika Putri Hemastuti 1, Tukimun 2 and Eswan 3  \nFaculty of Civil Engineering, 17 Agustus 1945 University of Samarinda, 75124, East Kalimantan, Indonesia  \nEmail: [logiskaputri@yahoo.com](logiskaputri@yahoo.com1)[1](logiskaputri@yahoo.com1), [moonix.mg@gmail.com](moonix.mg@gmail.com2)[2](moonix.mg@gmail.com2), [eswan887@yahoo.co.id](eswan887@yahoo.co.id3)[3](eswan887@yahoo.co.id3)  \n* Correspondence: [logiskaputri@yahoo.com](logiskaputri@yahoo.com)  \nCitations: Hemastuti, Logiska Pakartika Putri., Tukimun, Tukimun., & Eswan, Eswan.,(2026) . Design Review and Cost Estimation of Planned Asphalt Overlay on Jalan H. Tjutjup Suparna, Balikpapan City. World Journal of Entrepreneurship Project and Digital Management, 6(1), 51-55.  \nAcademic Editor:  \nReceived: 13 October 2025 Accepted: 29 October 2025 Published: 31 October 2025  \nAbstract: Urban road infrastructure requires periodic planning and maintenance to ensure serviceability and public safety. Jalan H. Tjutjup Suparna, one of the main roads in Balikpapan City, has been selected fora planned asphalt overlay project to address surface degradation and improve driving comfort. This study aims to review the technical design and estimate the cost of the proposed overlay based on engineering drawings, including layout plans, cross-sections, and detailed drawings, as well as Bill of Quantity (BoQ) data. A comprehensive analysis of the design dimensions, planned pavement layers, and associated unit costs is conducted to evaluate the efficiency and consistency of the project documentation. The findings are expected to serve as a reference for improving the accuracy of early-stage planning in similar urban infrastructure projects.  \nKeywords: Asphalt Overlay; Balikpapan City; Cost Estimation; Design Review; Road H. Tjutjup Suparna; Road Infrastructure  \nCopyright: © 2022 by the author. Submitted for possible open access publication under the terms and conditions of the Creative Commons Attribution (CC BY) license ([https://creativecommons.org/licenses/by/4.0/](https://creativecommons.org/licenses/by/4.0/)).  \n1. Introduction  \nUrban road infrastructure plays a vital role in supporting transportation systems, economic activities, and community mobility (El-Sherif, 2021; Yannis & Chaziris, 2022) . To ensure roads function optimally, regular planning and maintenance are essential (Lee & Yoon, 2021; Liu et al., 2017), especially in rapidly developing cities such as Balikpapan. Asphalt overlay is one of the most widely used methods in road rehabilitation (Elseifi et al., 2016; Huang, 2004) . It involves the application of a new layer of asphalt to improve surface quality and extend the pavement's service life (Kabir et al., 2014; Kuźnia, 2025) without the need for complete reconstruction (Gong et al., 2022; Johnson, 2000) .  \nJalan H. Tjutjup Suparna is a primary arterial road in Balikpapan City that serves both residential and commercial areas. Due to increasing traffic volume, natural wear, and aging pavement, this road has been identified as a candidate for surface rehabilitation through asphalt overlay (Sol-Sánchez et al., 2017; Wanget al., 2021) . As of the time of this study, the overlay project is still in the planning phase, with no physical implementation having been conducted. Therefore, a comprehensive review of the design documents and cost estimation is crucial to ensure that the project planning is technically sound and economically efficient.  \nThis study aims to review the technical design and estimate the cost of the planned overlay using available data, including layout drawings, cross-sections, detail plans, and the Bill of Quantity (RAB) . Thereview process will assess the consistency between design dimensions, selec","cbCaiquTqw99pWTe","https://ap.wps.com/l/cbCaiquTqw99pWTe","pdf",378420,"English","# Introduction\n## Background and purpose\n## Study scope\n# Materials and Methods\n## Data collection\n## Design review method\n## Cost estimation method","[{\"question\":\"What road project is evaluated in the study?\",\"answer\":\"The study evaluates the planned asphalt overlay on Jalan H. Tjutjup Suparna in Balikpapan City to address pavement surface degradation and improve service quality.\"},{\"question\":\"What data sources are used for the design review?\",\"answer\":\"Design review uses secondary planning data including technical drawings (site map, existing and proposed layouts, cross-sections and details) and photographs of current road conditions.\"},{\"question\":\"How is the project cost estimated?\",\"answer\":\"Cost estimation is based on the BoQ/RAB document by identifying and reviewing unit costs for each work item and calculating the total estimated cost.\"}]","Design Review and Cost Estimation of Planned Asphalt Overlay on Jalan H. Tjutjup Suparna, Balikpapan City | PDF",13]