FJS:  You make an important distinction which is important to any discussion of this issue.  I would carry it a step further and emphasize that the component populations making up the "homeless" population need very different services: the temporarily unemployed; abused women; young adolescents escaping abusive homes; chronic alcoholics and drug addicts; the mentally ill; the mentally and physically disabled; returning vets with PTSD, et al, all need services directed to address their particular needs.  While temporary placement is necessary, the real key is to address the precursers..the causes of an individual's homelessness.

I agree, a first step is to filter out the "travelers"....they represent a whole different issue.  regards, Gary