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Key Words$B!'(Blong-life pavements, modified asphalt, life-cycle-cost analysis

ECONOMIC ASSESSMENT AND USE POLICIES OF MODIFIED ASPHALT PAVEMENT

Kimio MARUYAMA and Hideto TAKEMOTO

This study proposes policies for the use of type-II modified asphalt mixture, by assessing the long-term service performance of such pavement and the economic efficiency of using the mixture to extend the pavement lifespan.
   Based on data from a tracking survey, quantitative assessment of long-term service performance has confirmed that modified asphalt mixture extends the period between repairs and the pavement lifespan. Furthermore, life-cycle cost analysis for a 40-year service life revealed that use of such mixture affords cost reductions for road administrators and road users.