spur vs spur track

spur and spur track both are nouns.

Word	Noun	Adjective	Verb	Adverb
spur	Yes	No	Yes	No
spur track	Yes	No	No	No

As nouns, spur and spur track are synonyms defined as:

Other synonyms of spur include branch line.

spur (noun)	spur track (noun)
a sharp prod fixed to a rider's heel and used to urge a horse onward	a railway line connected to a trunk line
a railway line connected to a trunk line
a verbalization that encourages you to attempt something
tubular extension at the base of the corolla in some flowers
any sharply pointed projection