The roundabout interchange will be built in five months at a total cost of VND600 billion (US$26.3 million).
With a diameter of 80 metres, the upper roundabout allows cars from directions to get on or off the Da Nang-Quang Ngai Expressway and the Chu Lai-Truong Hai Mechanical Automobile Industrial Zone, as well as for those travelling from the expressway and the industrial zone to cross the North-South railway and enter National Highway 1A and Chu Lai Port.
The smaller ground roundabout, having a diameter of 50m, is open for cars moving from directions on National Highway 1A into Chu Lai Port.
In addition, a 3.5m-wide reinforced concrete railway crossing flyover, connecting the Chu Lai-Truong Hai Mechanical Automobile Industrial Zone and National Highway 1A, will also be constructed during the project.
The roundabout interchange project aims to improve road and railway traffic safety, whilst enhancing the circulation capacity on National Highway 1A and the arterial road connecting Chu Lai Port, the Chu Lai-Truong Hai Mechanical Automobile Industrial Zone, and the Da Nang-Quang Ngai Expressway, contributing to completing the transport network as planned and creating a driver for socio-economic development in Quang Nam province.