Last summer, your idiot correspondent chose one of the hottest days of the year to ride lots of types of public transport to see how hot it gets. This winter, on one of the coldest nights of the year, we rode the full length of the Jubilee line to find out if a tube train is where you should go to warm up. Here's a chart to document our temperature findings, but that still doesn't do justice to the fact that we still needed gloves until we got to Swiss Cottage...
Video: How Warm Is A Tube Train In Winter?
Last Updated 14 February 2016