bbc news. there are new warnings that the changing climate is testing the limits of the uk s rail and roads as more extreme weather increases the risk of landslips, flooding and other disruptive events. the government s official adviser on the subject wants a conversation around how much the taxpayer is prepared to spend, to keep the country moving. 0ur transport correspondent katy austin has more. this is what the impact of extreme weather on our transport works looks like. intense rainfall flooding roads. rail embankments slipping away. track buckling in the heat. it all adds up to disruption, including for train passengers. it is network rail s job to passengers. it is network rail sjob to monitor the thousands rail s job to monitor the thousands of miles of railway track up and down the country for any that could make it unsafe for trains to run. every
intense rainfall flooding roads, rail embankments slipping away, track buckling in the heat. it all adds up to disruption, including for train passengers. it is network rail s job to monitor the thousands of miles of railway track up and down the country for anything that could make it unsafe for trains to run. so every system that you are looking at is affected in some way by the weather. you will see the signalling equipment, we need to make sure that we maintain temperatures. we need to maintain power lines, because if the wires sag, they catch on the pantograph on top of the train. when the rails get too hot, the metal can warp. they are engineered to cope with britain s normal temperature range. last yea r s heatwaves tested the network s resilience. we are spending more money than ever before, but of course every year we see extremes of weather. we break records on heat, on rain, on wind, so we are really
bit. to the local authority are doing their bit. ., ., , the local authority are doing their bit. to louise jackson, thank you very much bit. to louise jackson, thank you very much indeed. and you can watch?! want to go home bbc wales investigates on iplayer now and on bbc one wales at 8pm tonight. 24 minutes past seven. we have been reporting so much over the last few weeks. it s been a summer of extreme weather, and there are fresh warnings that the changing climate is testing the limits of the uk s rail and roads. the government s official adviser on the subject wants a conversation around how much we re prepared to pay to keep the country moving. our transport correspondent katy austin has more. this is what the impact of extreme weather on our transport networks looks like. intense rainfall and flooding roads, rail embankments slipping away, track buckling in the heat. it all adds up to disruption, including for train passengers. it is network rail sjob