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A full scale test embankment with EPS geofoam was constructed in the Finnish EPStress research program. The test embankment was on a heavily trafficked Highway 1 in muurla, but on its temporary road connection part. The aim of the muurla test embankment was to study, how an EPS embankment without a concrete plate works under a heavy traffic loading. Another aim was to develop better design methods for the EPS embankments. The tests showed that the EPS structure can be used without the covering concrete plate, if the pavement is carefully designed and the service life of the pavement is considered. In this article the performance of the structure is analysed with analytical and numerical calculation methods. The aim is to validate modeling and calculation methods for EPS structures