In　this　paper,　we　propose　a　self-organization　approach　to　the　framework　of　the　Cyber-Physical　System　(CPS)　for　future　Intelligent　Transportation　System　(ITS),　and　apply　a　programming　language,　named　Modelica,　to　implement　the　Transportation　Cyber-Physical　System　(CPS-T).　First,　we　divide　the　physical　units　of　ITS　into　six　layers　by　analyzing　their　functions　in　this　system.　Furthermore,　based　on　the　control　objectives,　a　self-organization　approach　is　given　with　the　help　of　a　dynamic　weighed　directed　graph　and　the　distributed　hierarchical　control　theory.　Finally,　we　illustrate　the　feasibility　by　applying　the　programming　language　-　named　Modelica　-　to　the　modeling　and　simulation　of　CPS-T.　©　2014　American　Society　of　Civil　Engineers.