The expressway begins at Huangcun Bridge, north of Guangzhou City, and ends at the south of Shenzhen near Huanggang, where it connects with the northern section of Guangzhou City Expressway. It is a two-way six-lane highway 33.1 metres wide equipped with street lighting, with a length of 122.8 km and a speed limit of 120 km/h. It was designed for traffic volume of up to 60,000 vehicles per day. In 2012, data showed that the average daily traffic volume reached 400,000 vehicles.