Korea Expressway Corporation has been in operation for 50 years. Pavement maintenance, which was initially conducted by manpower, reached its limits due to the increase of highway extension. Therefore, the introduction of the pavement management system in the 1990s was considered. The pavement management system has become the foundation for conducting the budget. In the 2010s, the concentrated maintenance system, which closes traffic for a long time, was being applied to efficiently manage the distressed pavement.

• 이경하(한국도로공사 도로교통연구원 포장연구실) | Lee Kyung-ha