Britain will begin rehearsals for the possible chaos of a “no-deal” Brexit on Monday by testing how the road network copes with a tailback of around 150 lorries caused by disruption at its most important trading gateway, the Channel port of Dover, to continental Europe.
Even if no withdrawal deal with the EU is sealed, Britain is due to leave the European Union on March 29.
It is unclear what the government may do if parliament fails to ratify the treaty.
