A second day of diversions will be in place on the M20 this morning due to problems at the Channel Tunnel.
Non-freight traffic travelling in the direction of Folkestone and Dover will be diverted onto the A20 from Junction 8 (Hollingbourne) and rejoin the motorway at Junction 9 (Ashford West).
This allows backed-up freight traffic to park on the coast-bound carriageway.
Kent Police say drivers should leave more time or find alternative routes as 'Operation Stack' continues.
What is Operation Stack?
Operation Stack is where parts of the M20 are used to queue lorries travelling towards the continent, to avoid causing gridlock across Kent's road network.
It is introduced as an emergency measure.
The disruption at London Bridge Station is expected to last until the end of service tonight, National Rail have said.
Before tonight's rush-hour, Boris Johnson met executives from Network Rail. He said:
I know Network Rail are very apologetic for any inconvenience and delays passengers have experienced.
This is a vast project which will produce massive benefits for all travellers at and into London Bridge. It involves the total rebuilding of the oldest commuter railway station in the world.
There will inevitably be disruption from these huge improvements, but they have reassured us that they are straining every muscle to keep that disruption to an absolute minimum.
National Rail Enquiries says that the disruption is likely to last until at least 10pm.
Passengers are being allowed to use their tickets on buses between London Bridge and East Croydon, Purley and Caterham, on London Overground and London Underground services on 'reasonable routes' and the Tramlink between Beckenham Junction and East Croydon.
We apologise for disruption again tonight. If any minor consolation, we hope at least your experience on the station was improved tonight.
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