Working out what Eurostar is going to do – based on the numbers, not what the company says

Jon Worth cuts through some of the hype around the purchase of 30 Alstom Avelia Horizon double-deck trains by Eurostar. There's a lot of speculation about how these trains could be used and Jon's piece looks at their current fleet, the age they'd be when the Avelia Horizon trains get delivered in 2031 and some possible theories.