Well, my suggestion to myself and others is to get to know these students. Have a conversation with some of them and ask them about themselves, sharing a little too. I wouldn’t suggest doing this while the party is occurring or when they are walking home buzzed, but if an opportunity arises, offer an introduction, so they can feel part of the community and know when they behave certain ways they are impacting people they have met.
I would suggest calling the college to get contact information from those who have already established such routines and seen the results. They will likely be able to help you get started and offer much wiser advice than I can.
But the small amount of time you devote to this endeavor could go a long way to improving the quality of life in your neighborhood.
Stephen Bartlett may be reached at firstname.lastname@example.org