There has always been a need to take good care of the railways but the ways that maintenance is undertaken are changing.  Bex and Dan find out more about how faults on the network are detected.

<p>There has always been a need to take good care of the railways but the ways that maintenance is undertaken are changing.&nbsp; Bex and Dan find out more about how faults on the network are detected.</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>