"Facilitating value-added re-use of public sector information will be conducive to the development of Hong Kong as a knowledge-based economy," the spokesman said.

Users will benefit from accessing real-time traffic data of the main roads such as the average traffic speeds of the main roads in Hong Kong, up-to-date traffic news and images of real-time traffic situation in the fast track city.

"We believe that public sector information is not only a valuable source of reference, but may also generate valuable applications.

"The data provided on Data.One are all downloadable and some are even in the XML format for convenient data transfer and processing by computers. Users will also be assisted by the portal's guidance on downloading. The downloaded data can be used for academic researches or developing various innovative services or applications, such as mobile applications showing the road traffic situation."