The Position Light
A blog devoted to explaining the ins and outs of North American railroad signaling, past, present and future. This blog seeks to preserve through photo documentation the great diversity and technical ingenuity of 20th century signaling and interlocking hardware and technology. Related topics cover interlocking towers and railroad communications infrastructure. Note, due to a web hosting failure some of the photos and links may be unavailable.
Note from The WilderNet: I don't understand how this is possible but this is a blog that has been posting since 2011 and they consistently post exactly 49 posts every year.
Recent posts
- THORN Tower Just Won't Die
- NS Files to Replace Cab Signals with Back Door CBTC
- Amtrak Zephyr Trip Report: The More Things Stay The Same
- Amtrak Electrification Primer
- I 'C' You - Caltrain Adopts SP Commuter Plates?
- NS Re-Signaling Old NKP West of Cleveland
- Protecting Sharp Curves Before PTC
- Position Lights Replaced at QUEENS Interlocking
- Reading and Northern's Flexible CTC
- Automatic Signals To Be Axed From NY Penn Station Lines 1 and 2