Mr. Hanna:  This is not exactly a new issue.......It's difficult, if not impossible, to balance all the conflicting interests involved here.  

There are "legitimately" homeless individuals who need real help:  suddenly unemployed; women fleeing abusive relationships; mentally illness, substance abuse; vets withPTSD, etc.......There are also  the "travelers", who have chosen the vagabond lifestyle and live off the largesse of others.  

And, of course,......we have businesses and community members who would like to enjoy the downtown w/o the hassle of dealing with all the "above."  

The idea of "no dogs" and "no smoking" really addresses No solutions to the issues and problems address those "legitimately" homeless individuals....it is NOT INTENDED to.  It's simply a means of discouraging the homeless from being in the downtown area.  Good idea? Bad idea? Perfectly legal? Unconstitutional?  Effective? Will just lead to cofrontations and arrests or citations?  WhoKnows?