Transport chiefs have claimed that most people support plans to close London Underground ticket offices, as passengers brace themselves for disruption caused by strikes over the issue next week.
A survey of more than 1,000 adults for Transport for London showed that 82% supported proposals to move staff out of under-used ticket offices into ticket halls and platforms.
Nine out of 10 backed plans to launch all-night Tube services in the capital next year.
Union leaders disputed the findings and called on London mayor Boris Johnson to hold direct talks with them in an attempt to avert two 48-hour walkouts.
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The 24-year-old was unarmed and the incident is not being treated as terror-related.
Some platforms have been taken out of service with disruption expected to continue until the end of the day.
The Met Office has extended its weather warnings for snow and ice to cover vast swathes of the country, including London and the South East.