the meaning of "unseemly traffic" and "a bookie who worked the college crowd"

[kjc0123]

What is the meaning of "unseemly traffic" and "a bookie who worked the college crowd" in the following sentences?

 

Crawford's office was above a bar his brother owned near the campus. It was a nice bar, with a menu and unpainted windows, live music on the weekends, no unseemly traffic other than a bookie who worked the college crowd.

[jno]

It appears to mean there was nobody unpleasant or annoying around, except for a bookmaker who took money by encouraging college students to gamble.

[Peter Pedant]

unseemly traffic - low down people like the japanese yakuza,

so the sentence says that there was no-one the author did not like except one - the bookie = book maker or betting shop owner, who worked the college crowd = he took bets from the students

i am not sure why a book maker for students should be unseemly....

 

PP