Weary London commuters were tonight offered little in the way of hope as another 48-hour tube strike appeared inevitable.
Members of the RMT union are due to stop work on Monday evening in protest at ticket office closures and job losses.
London Underground warned of significant disruption as it published its emergency timetable.
Many stations in Zone 1 are expected to be closed with both the Central and Piccadilly Lines at a standstill in central London.
The proposed closure of 254 ticket offices was the subject of further talks between LU managers and the four main tube unions but there was no sign of a breakthrough.
The two sides have had almost 50 meetings since the last strike in February.
Tube bosses believe the key sticking point is the RMT’s refusal to accept any cut in jobs despite the promise of no compulsory redundancies.
Managers want to scrap 950 ticket office jobs but say 1,100 workers have applied for or expressed an interest in voluntary redundancy.
London Underground said 13% of its workforce voted for the industrial action, prompting renewed calls from Tories on the London Assembly for new strike laws.