The introduction of toll Island mold is combined with the standard production of 1.7m or 2.2m wide Island head and island tail structure style used in Expressway import and export. Because the toll Island length is more than 4m, it is suitable for direct pouring on site. The introduction of toll Island mold is made in the form of cast-in-place. This method can effectively ensure the efficiency of construction, and further save the cost and time of secondary handling of products. Moreover, the use of the mold is mainly carried out by splicing, so it is very fast in construction. Through the use of toll Island, the ramp becomes more stable.