Electricity line crossing track The red and white markers spanning the track alert to electricity cables overhead. They function as height guides to prevent high loads fouling the transmission lines.
<a rel="nofollow" class="external text" href="https://www.geograph.org.uk/profile/14840">Evelyn Simak</a>
CC BY-SA 2.0
From <a rel="nofollow" class="external text" href="https://www.geograph.org.uk/photo/1339797">geograph.org.uk</a>