Tram had been widely used in South Korea until 1960s; however, introduction of automobiles made the tram disappear. KRRI (Korea Railroad Research Institute) has developed wireless tram in order to enhance transporting capacity in large city. Continuously supported and embedded track system supports load from a wireless tram. The track system is composed of concrete slab or precast concrete and groove rail. Surface of the track is usually constructed by asphalt concrete. The asphalt concrete layer is about 5 cm in depth and constructed between rails of which width is 1435 mm. Adhesion between concrete slab and asphalt concrete layer and constructability, which affects performance, were investigated through actual construction and testing at test-bed. Four different types of mixtures and structures were used. After construction, adhesion tests were performed including basic material tests. Guss-asphalt with SMA showed the best adhesion and constructability.

The innovative and environment-friendly tram vehicle and it’s trackway system are developed based on the government’s R&D funding. Accordingly, in order for the test drive of developed vehicle, a tram trackway as test-bed, is being constructed in Osong, where is located inside Korea Rail Network Authority in Chungcheongbuk-Do. In this paper, the construction method of trackway for wireless and low-floored tram vehicle is introduced for the first time in Korea.