The current road length in Korea is 106,000km, and the demand for new road construction is nearly reaching its limits. Even the policy of the road is on the turning point of new construction to maintenance and management. The need of effective maintenance for existing road infra is increasing, and as for new road, the paradigm is changing to characterized road construction. The development of technology for customized road system through modularization is actively tried out to satisfy the needs of multi-functional roads. In this study, the required performance about joint of modular road system was researched