Strikes are picking up pace in the run-up to Christmas as workers squeezed by rising costs fight for higher pay.
Rail workers will walk out for a second day, while Royal Mail employees and driving examiners are also striking.
Tuesday’s walkout by rail staff left services running at about a fifth of capacity, on a day when snow, ice and fog hampered road and air travel.
Around half of rail lines will be shut again on Wednesday, with no services at all in most of Scotland and Wales.
The first-ever nationwide strike by nurses is also expected to go ahead this week.
And on Friday, rail workers, buses, baggage handlers, highway workers and driving examiners will walk out.
The government’s emergency Cobra committee will hold its second meeting of the week later to discuss how to minimise the impact of the wave of industrial action.
Industrial action by 115,000 members of the Communication Workers Union (CWU) coincides with the busiest time of year for Royal Mail when people and…