[Grammar] Campus

[constantinusphilo]

Why is the article often omitted with 'campus', as 'on the edge of campus' (The Secret History by Donna Tartt)

 

[emsr2d2]

Why is the article often omitted with 'campus', as in 'on the edge of campus'? (The Secret History by Donna Tartt)

Note my corrections above. Remember to italicise book titles and to use closing punctuation. Please give us the complete sentence in which that fragment appears.