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Pavement Management Based on Eco-friendly Performance and Cooperation with Local Governments in Seoul Metropolitan Area

Park, JinㆍYoon-Hye Lee

Although eco-friendly pavement technologies have been developed to cope with climate change, they have not been activated in Korea. It is necessary to apply eco-friendly pavements on roads that occupy 23% of the total area in Seoul. Warm-mix asphalt, quiet pavement, recycled aggregate pavement, and the reduction in pollutant emissions from asphalt plants were investigated as the most important and urgent technologies in Seoul. The core features of eco-friendly pavement were durability, reductions in carbon/air pollutant emissions, and eco-friendly performance standards.

There is a need for a standard to measure and evaluate the performance of eco-friendly functionality. There should be local government standards for the maintenance of road pavements. Standardisation and certification for eco-friendly performance should be promoted at the same time using the following steps 1: Establish an institutional foundation and promote the standardisation of eco-friendly performance evaluation methods, 2: expand eco-friendly certification items, and 3: integrate information on certification and develop governance. To evaluate the long-term performance of eco-friendly functionality, it is necessary for the Seoul government to participate in the test-bed project and support long-term monitoring.

Ascon has restrictions on its transport distance after production. It must be consumed within the production region. Ascon is mostly consumed by the public, so the policy direction of local governments in the metropolitan area must be consistent to enhance policy effectiveness. To invest facilities and manpower to produce eco-friendly asphalt products, information on demand must be disclosed through a mid to long-term roadmap. The economic feasibility is expected to increase as economies of scale are achieved based on cooperation with local governments. A council of local governments is needed for the standardisation and certification of eco-friendly pavement.

The current pavement management in Seoul is focused on aging management based on road flatness. To expand eco-friendly road pavement, incentives are needed for public officials or autonomous districts who choose eco-friendly pavement. Guidelines for eco-friendly pavement should be prepared so that suitable pavement technology is applied under various conditions. Once the guidelines are prepared, the pavement management, which is currently controlled by the SPI(Seoul Pavement Index), should be updated to include eco-friendly performance.