Drivers have taken to Twitter to express their frustration, with Operation Stack in place on the M20 again.
Operation stack can't be on again?! I don't have time to sit in traffic jams all the time!!
It was implemented this morning due to traffic building up towards the Port of Dover and Eurotunnel.
The motorway is closed coastbound between junctions 8 and 9 to non freight traffic, with congestion building up to junction 7.
A petition to stop Operation Stack has received more than 15,000 signatures since it was launched two weeks ago.
Traffic congestion due to Operation Stack is building up as far back as junction 7 coastbound on the M20.
The motorway is closed to non freight traffic between junctions 8 and 9 coastbound.
Operation stack is being put in place on the M20 yet again due to traffic heading to the Port of Dover, according to police.
The emergency traffic measure, which sees lorries queuing on the motorway while non freight traffic is diverted, has been used several times in the last month.
Kent Police say the decision to implement it was made due to traffic building up towards the port and Eurotunnel. Coastbound traffic will be diverted at junction 8 and rejoin the M20 at junction 9.
[Dover] #OpStack on M20 J8-9 to be in place later this morning. We advise all non-freight traffic to use M2/A2 where possible to avoid delay
Kent Police is reminding lorry drivers that those at the front of the queue will get a ticket to continue their journey to the continent. Those who use the diversions for non-freight traffic in an attempt to get closer to the front, and who do not have a ticket, will be sent to the back of the Op Stack queue.
A labyrinth of forgotten Second World War tunnels built beneath the White Cliffs of Dover have revealed glimpses of wartime life. The Fan Bay Deep Shelter was carved out of chalk in just 100 days in the 1940s on Winston Churchill's orders. It was part of Dover's connected offensive and defensive gun batteries, aimed at foiling German shipping movements in the Channel.
Lying 75ft below the Kent coastline, the 3,500 sq feet of interconnecting tunnels, reinforced with iron girders and metal sheeting, accommodated four officers and up to 185 men during the war.
The shelter - personally inspected by Churchill in 1941 - was decommissioned in the 1950s before being filled in with rubble and soil and abandoned during the 1970s.
Kent Police say Operation Stack is likely to be implemented this afternoon due to a high volume of freight traffic heading to the Port of Dover and the Eurotunnel.
Police are warning of a weekend of motoring misery on Kent's roads.
Operation Stack is still in force on the M20 between junctions 8 and 9. Officers warn disruption is likely to cause problems for those trying to reach the Kent County Show.
The Port of Dover remains open for business with a full service operating to the Port of Calais with P&O Ferries and a full service operating to Dunkerque with DFDS Seaways.
Due to the disruption earlier in the week at the Channel Tunnel, the on-going situation at the Port of Calais and high volumes of freight traffic seeking to use all the Channel Ports, the Port of Dover would like to advise its passengers about potential traffic congestion on the M20.
All coastbound freight traffic is being directed to join the back of the queue at junction 8 (Hollingbourne). Any lorries approaching the ports without an Operation Stack ticket will be directed to the back of the queue at junction 8.
Non-freight traffic is being directed to come off the M20 coastbound at junction 8 to join the A20 and should follow the yellow circle diversion route. Alternative routes are expected to be busy so please allow plenty of time for your journey.
Tourist traffic heading for the Port of Dover is advised to use the A2/M2 route, but please allow plenty of time for your journey.
Traffic is flowing and the Port and the ferry operators are working hard to serve all customers travelling to and from the continent. We apologise for any delays or inconvenience as a result of the traffic congestion and we would like to reassure our local community we are playing our part to keep traffic, Dover and the UK economy moving.
We will continue to monitor the situation closely, but this issue affects us all and together with all partners are working hard in order to resume normal operations as soon as possible.
Phase 2 of Operation Stack has now been lifted having been re-implemented earlier this morning due to disruption at the French side of the channel tunnel.
The M20 is fully re-open.
There may still be residual delays in the area while the road network returns to normal.
Operation Stack phase 2 (M20 closed coast-bound junctions 8 to 9) has been implemented due to disruption at the Channel Tunnel. Eurotunnel services are therefore affected.
NO ferry traffic is being held in Operation Stack and the Port of Dover remains open for business with a full service operating to the Port of Calais with P&O Ferries and a full service operating to Dunkerque with DFDS Seaways.
Customers are still advised to contact their chosen ferry operator before travelling.
The Port of Dover remains open as normal with regular sailings following a series of industrial action in France.
As the Port of Calais continues to operate two berths only, P&O Ferries continues to run a full service to Calais, whilst DFDS Seaways operates a full service to Dunkerque, with an additional vessel diverted to the route to help accommodate heavy traffic.
"P&O Ferries and DFDS Seaways have done a fantastic job at keeping the traffic moving in recent days, with the re-routing of vessels and the short-term use of Boulogne. The recent disruption to this vital international trade corridor cost the national economy £250million per day in lost trade. From Kent Police, Highways England, Kent County Council, the ferry companies and port staff to the local community, I would like to thank all involved for a positive partnership approach to tackle a very difficult situation."