produced phenomenal amounts of rain. and also injuly, frightening scenes from zhengzhou in china, where the floods that followed a year's worth of rain in just three days trapped people in an underground metro system and on flooded trains. thankfully, on a far less extreme scale, the transport network here in london was hit with flash flooding in summer. and with climate scientists warning of more frequent bouts of intense rainfall, in a moment i'll be asking transport for london what they are doing to keep travellers safe. water cascades into london's covent garden underground station injuly, just one of a number of flood—related incidents last summer. to be catastrophic, and as one scientist told me, it's it's a problem which transport for london says has the potential to be catastrophic, and as one scientist told me, it's a problem compounded by increasing population, building, and an ageing drainage system.