The 23rd World Congress on Intelligent Transport Systems, in Melbourne, has had a bigger than expected economic impact on the local economy and is now estimated to be US$34.5 million (AU$46.6 million), nearly twice the initial projection. The increase has been attributed to the higher than anticipated attendance figures. More than 11,500 Australian and international delegates participated, 4,500 registrations more than the target figure of 7,000. The high volume of visitors had a positive impact on the loca