RAC Foundation director Professor Stephen Glaister said: "We welcome today's pothole pledge, recognising the importance of maintaining the roads we have with building the new roads we need.
"But the timetable is critical. We are still talking about action taking place over the medium term, not today and tomorrow. And we still don't know exactly where the money is coming from. We have been waiting more than a year for a review of road funding to be published. That wait continues.
"Crucially, by giving the Highways Agency corporation status, the Government is finally acknowledging the need to set long-term plans for our strategic roads, just as they have always done for the railways."
The Government must "pull its finger out and start building", Labour said in the wake of today's raft of infrastructure announcements.
Pothole repairs and improvement plans for the A21 in Kent, junctions on the M4, the M23 Gatwick and the A27 Chichester bypass announced.