Commuters have suffered a second day of travel disruption as rail workers on three networks continue to strike.
Up to 40% of South Western Railway services are to be affected by industrial action along with interruptions on Greater Anglia and Southern.
It comes as members of the Rail, Maritime and Transport union (RMT) continued their dispute over the role of guards and driver-only trains on Thursday.
Commuters in the capital battled long delays and cancelled services when the two-day strikes began on Wednesday.
Picket lines were mounted outside stations again, with RMT saying support was still solid.
On Wednesday, union Aslef announced its members had agreed a deal with Southern over the driver dispute.
The agreement incurred a 28.5% pay rise for its members over a five-year period.
But Aslef was accused of selling out and putting wages ahead of customer safety.
Southern's 300,000 passengers had faced months of strike action since the dispute began in April 2016, causing commuter misery.
But RMT general secretary Mick Cash said the public was backing the union's campaign and he again accused the Government of blocking talks, which ministers deny.
"Our members know what is at stake and are not prepared to abandon the disabled, the vulnerable and women travelling alone to their fate on a railway run solely for profit," he said.
"Social media shows that public support is flooding in as our communities choose to stand by their guards against the financially and politically motivated drive to throw safety-critical staff off our trains.
"The public are telling us that they are disgusted that this minority Government are prepared to sit back and cheer on overseas operators who are robbing British passengers blind while sacrificing basic safety standards in order to subsidise transport services in Paris, Amsterdam and Hong Kong."
The strikes will end at midnight on Thursday.