Many operators of passenger public transportation maintain an exclusion or trespass policy that effectively bans violators from using the system for a period of time in conjunction with, or in lieu of, other penalties related to the violation. Exclusion policies vary in scope, qualifiers, purpose, and approach. TCRP Synthesis 173: Transit Exclusion Policies in Public Transportation Systems , from TRB’s Transit Cooperative Research Program, documents the practice of the use of transportation exclusio…