SVG vector diagram of a differential maximum permitted speed sign, drawn according to standards set by the Railway Safety and Standards Board. Shows a limit of 70mph for passenger trains and light traffic and a limit of 40mph for all other trains.
<a href="//commons.wikimedia.org/w/index.php?title=User:Neontrix&amp;action=edit&amp;redlink=1" class="new" title="User:Neontrix (page does not exist)">Neontrix</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>