I've come across these codes on bridges etc. but don’t know anything about their origins. I assume they originated with the civil engineer's department. These are the codes to report if you witness a bridge strike or other incident. Do they date from BR days or go back to the pre-1948 companies?
When I lived in the Calder Valley, bridges carried plates marked MVN, which I was told stood for Manchester Victoria and Normanton Line (even though of course no passenger trains now cover the whole route).
Where I live now I see the LSWR main line is described as BAE – I assume Basingstoke and Exeter - and why does the GW main line have the code MLN?
When I lived in the Calder Valley, bridges carried plates marked MVN, which I was told stood for Manchester Victoria and Normanton Line (even though of course no passenger trains now cover the whole route).
Where I live now I see the LSWR main line is described as BAE – I assume Basingstoke and Exeter - and why does the GW main line have the code MLN?