Engineers are rebuilding Acton Main Line station in west London so fast trains such as the Heathrow Express (this is unit number 332011) are having to share the relief lines with local services.
<a href="//commons.wikimedia.org/wiki/User:Geof_Sheppard" title="User:Geof Sheppard">Geof Sheppard</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>