Virginia, July 11 (ANI): Union Road Transport and Highways Minister Nitin Gadkari on Monday said the Centre's resolve to double the existing national highways network presents a 'golden' opportunity for the former from the point of view of economic viability and return on investment. Gadkari, who is on a week-long official visit to the US, said the studies done all over the world on infrastructure development in India are appreciating the Modi government. The minister said that to control the road casualties in Indian, USA's intelligent traffic management system will be fruitful.