At this month’s meeting, guest presenter Andrew Martin spoke about railway signalling.
![](https://www.mrarc.org.au/wp-content/uploads/sites/4/2023/03/IMG_6034.jpg)
It was a fascinating romp through the history of technologies used to make it safe for trains to navigate complex track networks without banging in to each other.
![](https://www.mrarc.org.au/wp-content/uploads/sites/4/2023/03/Rail-signalling.jpg)
![](https://www.mrarc.org.au/wp-content/uploads/sites/4/2023/03/Rail-relay.jpg)
There were many questions and we all learned a lot about the focus on reliability and safety that underpins a rail network.
![](https://www.mrarc.org.au/wp-content/uploads/sites/4/2023/03/Bush-40.jpg)
Some members do home construction and there are plans afoot for a group project. Stay tuned for more information.