TAILIEUCHUNG - Optimal Pavement Preservation Strategies: An Investigation for a National Road Network

Overall objective: Road asset networks throughout the world are extensively deteriorated due to increasing demands while allocated resources to develop and preserve them are reduced in developed countries and constrained in developing countries; Option evaluation (OE) systems1) have been widely used to support decision making for management of investmen. | The 11th International Summer Symposium JSCE Optimal Pavement Preservation Strategies An Investigation for a National Road Network Presenter Dinh Van Hiep PhD Co-authors . Rashid PhD Candidate Koji Tsunokawa Professor raduate School of Science Engineering Saitama University . .Management of road asset Overall objective s Road asset networks throughout the world are extensively deteriorated due to increasing demands while allocated resources to develop and preserve them are reduced in developed countries and constrained in developing countries. s Option evaluation OE systems1 have been widely used to support decision making for management of investments on road asset in order to maximize benefits to society Overall objective - To enhance the use of OE systems on management of investments on road asset in an effective manner. 1 Examples of OE systems include HDM-III RTIM HERS and HDM-4. Contents s Overview OE systems and some approaches GSOE COSM developed by authors to enhance the use of OE systems s Present a methodology for investigating optimal pav. preservation strategies PPSs s Demonstrate the methodology using a case study with Vietnamese road network s Give conclusions recommendation for further study 2 OE systems Advantages OE systems have been widely used in more than one hundred countries over the last four decades due to their advantages Based on life cycle cost analysis LCCA Use a coherent framework of economic evaluation Provide a transparency of analysis s Among OE systems HDM-4 Highway Development Management System has been recognized as a state-of-the-art tool. See for example Riley et al. 1994 Liautaud Faiz 1996 Tsunokawa Ul-Islam 2003 Veeraragavan Reddy 2003 3 Capuruọo Tighe 2004 Hiep Tsunokawa 2005 and Jain et al. 2006 Problems solutions sOE systems predict the optimal strategies by comparing a small number of alternatives specified by users. s Since there is a huge number of possible alternatives it is impossible to consider and .

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