The Highways Agency has released a time-lapse video of work to make it quicker and easier to pay the toll for using the Dartford Crossing between Essex and Kent.
The video shows the installation of five new gantries that have been installed at the entrance to the Dartford tunnels and on the Queen Elizabeth II bridge.
The gantries will hold cameras and sensors for the new Dart Charge being introduced in October. That will allow drivers to pre-pay the charge or pay online so they won't need to stop at the toll booths.
The Highways Agency says 170,000 vehicles a day use the crossing and the new system will improve journeys and reduce congestion.
Every day thousands of motorists use either the Queen Elizabeth the 2nd bridge or the Dartford tunnel to get to and from Essex to Kent.
But from this weekend, there's going to be a big rise in toll charges. And there'll be another in two years time to help fund a £500m scheme to remove the tolls - increases that have been criticised by local haulage companies. Malcolm Robertson reports.
Charges are to be changed for the Dartford-Thurrock Crossing in a move the Government say will reduce congestion and improve journey times.
From October it'll cost an extra 50p if you pay by cash and travel by car. Those using the dart-tag charge will also see an increase - but not as much - from £1.00 to £1.33.
The Dartford-Thurrock River Crossing is a vital piece of transport infrastructure that has brought huge economic benefits to the country. But currently it can’t meet the growing demands of drivers so we need to plan properly for the longer term.
– Roads Minister Mike Penning MP
The government say free-flow charging will help traffic to flow faster. It should be introduced by Autumn 2014.
The Roads Minister's plans include:
A full review of the Local Residents' Discount Scheme