The amount of information transmitted globally over the internet looks set to double each year over the next five years, according to research released by IDC.

In 2002, the traffic volume was 180 petabits per day (one petabit = one million gigabits). This will increase to 5,175 petabits per day by 2007, according to IDC.

The main driver will be a move to broadband access by current users rather than growth in subscribers to the internet and broadband adoption by consumers will be the largest and fastest-growing sector of the internet traffic market by 2007.

By that time, consumers will account for 60 percent of all internet traffic compared to 40 percent for business users. Despite the growth of hotspots and the introduction of new roaming connection technologies, mobile internet users will have a minimal effect on traffic volumes.