SUAB meaning in Regional ?

Answer: What is Southern Alabama Railroad mean?

The Southern Alabama Railroad (reporting mark SUAB) was a shortline railroad formerly operating between a connection with CSX Transportation at Troy to Goshen, Alabama, about 15 miles (24 km). The railroad currently exists as the Conecuh Valley Railroad subsidiary of Gulf and Ohio Railways.

The railroad was controlled by Richard Abernathy, the owner of several shortlines in the South. The Southern Alabama railroad operated only at Troy, with the remainder of the line to Goshen embargoed for the majority of the shortline's operational history.

reference

Full Form	Category
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Southern Alabama Railroad Company Inc	Regional
Southern Alabama Railroad	Regional