It will be 59.6km long and 17m wide in the first phase, with its four lanes allowing a maximum speed of 80km per hour. It will be expanded to 24.7m in the second phase, when the speeds will go up to 100-120km per hour. It will cost VND8 trillion (US$358.7 million) for the first phase and VND6.9 trillion (US$309.4 million) for the second. The expressway will be part of National Highway No. 20, which runs from Dau Giay to Lam Dong province. It is used by 17,595 vehicles daily, while 7,244 use the Dau Giay-Tan Phu section. By 2020, the highway is expected to be overloaded, making the Dau Giay-Tan Phu Expressway necessary to ease traffic, the board said. Due to the limited funds available and difficulties in obtaining Japanese official development assistance, the work would be done in BOT mode, it said. A toll of VND1,500 per kilometre is planned for 22 years and six months. If the expressway gets the green light, construction will begin in the first quarter of next year and be completed in three years.