rail technology vs railroading

rail technology and railroading both are nouns.

Word	Noun	Adjective	Verb	Adverb
rail technology	Yes	No	No	No
railroading	Yes	No	No	No

As nouns, rail technology and railroading are synonyms defined as:

rail technology and railroading: the activity of designing and constructing and operating railroads

rail technology (noun)	railroading (noun)
the activity of designing and constructing and operating railroads	the activity of designing and constructing and operating railroads