Passengers are getting their first chance to use a revolutionary transport link in Kent involving a fleet of buses running along a dedicated lane.
Dartford is linked into the new Fastrack bus service
The first phase of the Fastrack system between Dartford and Bluewater opened on Sunday, with the 25-year project eventually stretching across Thameside.
It involves a combination of newly built and existing roads.
Only vehicles fitted with special satellite tracking equipment to trigger the traffic signals will use the lanes.
The first section will link Garrick Street, in Gravesend, with Northfleet, Swanscombe, Greenhithe, Darent Valley Hospital, Bluewater and Dartford, with buses leaving every 10 minutes.
Project manager David George described it as "a step change in public transport".
"We've built high quality busways, which give a very good level of priority to these vehicles so that they run free from other traffic.
"That is unusual and a very new and innovative approach outside the major cities," he said.