ABSTRACT
ABSTRACT: In many countries, efficient use of mechanistic-empirical methods in pavement design is hampered by rigorous construction control often by component. Little effort is given to the performance of the road as a whole. Some of the tests used are outdated and incorrectly tailored to pavement performance prediction. This seems to work in a conservative way as more and hard to get material is needed for the construction. The present paper discusses some aspects of functional criteria and how natural resources may be utilized better. A case study is presented where unbound material was compacted to a high degree so that the overall quality could be improved. Findings include that functional criteria are well suited to be accepted by industry and authorities alike. Strain criteria for bound layer fatigue is useful for assessing salvage values and remaining life. The top of subgrade strain criterion however, is actually too generic and needs to be revised.
