tailieunhanh - Optimal maintenance strategies for bituminous pavements: A case study in Vietnam using HDM-4 with gradient methods

The paper presents a systematic approach to find optimal maintenance strategies for pavement management systems by using the World Bank’s Highway Development and Management System (HDM-4) combined with gradient methods proposed by Tsunokawa et al (2005). The optimal maintenance strategy is defined as the set of optimal maintenance options corresponding to different traffic levels and various initial pavement conditions, which minimizes the sum of agency costs and road user costs in present value or maximizes the net benefit to society over an analysis period. | Journal of the Eastern Asia Society for Transportation Studies Vol. 6 pp. 1123 - 1136 2005 OPTIMAL MAINTENANCE STRATEGIES FOR BITUMINOUS PAVEMENTS A CASE STUDY IN VIETNAM USING HDM-4 WITH GRADIENT METHODS Dinh Van HIEP Lecturer Dept. of Highway Traffic Engineering Hanoi University of Civil Engineering 55 Giaiphong Str. Hanoi Vietnam. E-mail dinhhiepvan@ Koji TSUNOKAWA Professor Dept. of Civil Environmental Engineering Saitama University 255 Shimo-Okubo Sakura-ku Saitama-shi 338-8570 Japan Fax 81-48-858-3825 E-mail koji-t@ Abstract The paper presents a systematic approach to find optimal maintenance strategies for pavement management systems by using the World Bank s Highway Development and Management System HDM-4 combined with gradient methods proposed by Tsunokawa et al 2005 . The optimal maintenance strategy is defined as the set of optimal maintenance options corresponding to different traffic levels and various initial pavement conditions which minimizes the sum of agency costs and road user costs in present value or maximizes the net benefit to society over an analysis period. The basic data for the analysis was derived from the Vietnamese conditions and the most sensitive parameters in HDM-4 were calibrated into the local conditions for a basic application. The findings may help highway agencies in better applying the right maintenance work at the right time and thus result in savings with regard to the total transport costs to the society. Key Words PMS Vietnam HDM-4 pavement maintenance optimal maintenance strategy 1. INTRODUCTION The Highway Development and Management System HDM-4 2003 which was developed by the World Bank and other international organizations has been widely used in over one hundred countries including developed countries. Also it is recognized as a state-of-the-art system for the analysis of road management and investment alternatives because of the following advantages 1 the incorporation of both agency .

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