New technology can be used to find faults on the track – but when it comes to fixing things, it still needs help from some very heavy machinery!

<p>New technology can be used to find faults on the track &ndash; but when it comes to fixing things, it still needs help from some very heavy machinery!</p>

We're the UK's children's radio station. Listen across the UK on DAB Digital Radio, on mobile and online at funkidslive.com.

<p>We're the UK's children's radio station. Listen across the UK on DAB Digital Radio, on mobile and online at funkidslive.com.</p>