The pavement strengths predicted by the formula and determined by applying standard pavement design guidelines were compared, and HDM-4 was judged to be an appropriate design tool for pavements, if properly calibrated.
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Based on these results, a formula was derived that predicts the optimal pavement strength as a function of axle loading, LED and level of maintenance insufficiency. LITERARURE REVIEW David Ashley et.al (1998) carried out a research to know the viability of privatized transportation project and developed a Project Scoring Table(PST). HDM-4 Version 2.10 Upgrade is now available free to registered HDM-4 Version 2 licence holders by downloading from the HDMGlobal website. Métodos de análisis En el HDM-4 existen dos opciones de análisis de inversiones a nivel de proyecto: 4.1.1. The extent to which pavement should be designed to be sturdier, in order to counteract the insufficient maintenance practices which are so prevalent in developing countries, was also quantified. HDM - 4 software tool developed by World Bank for global applications can be effectively utilized for identifying optimum maintenance strategy for highway. 29 Pautas metodológicas para uso y aplicación del HDM-4 en PIP del Sector Transportes sobre aspectos de mejora del diseño del proyecto que se pueden usar inmediatamente o en planificaciones futuras. It was found that pavement strategy should be more economical in developing countries, both for the initial design and the subsequent maintenance.
The LED affects the trade-off relationships between initial design and subsequent maintenance, and between road-user costs and agency costs. One of the programs that are most often used for this analysis, particularly in developing countries like Bosnia and Herzegovina, is the HDM model.
This paper investigates the relationship between optimal pavement design and maintenance strategy and the level of economic development (LED), using HDM-4.