New Delhi, July 14 - A separate authority will be constituted soon for expediting development of expressways, Road Transport and Highways Minister Kamal Nath said here Tuesday.

'I am examining the possibility of setting up an expressway authority,' Kamal Nath said at a conclave on national highways.

'There is a highway authority. Let there be an expressway authority as well.'

The minister also said that road building meant a lot more to the country than just ensuring connectivity.

'We have to understand that with the world economy in stress, road building is not just a connectivity activity but also an economic stimulus,' he said.

Talking to reporters on the sidelines of the conference, Kamal Nath also noted that there was need to make radical changes in the way his ministry operated.