In　this　paper,　we　present　a　modeling　framework　for　complex　networks,　which　is　called　Dynamic　Graph　Hybrid　System　(DGHS　for　short).　First,　we　give　a　descriptive　definition　of　DGHS.　Furthermore,　as　a　typical　motivational　example　of　DGHS,　we　apply　it　to　model　urban　traffic　signal　control　(UTSC)　network,　and　the　UTSC　network　model　we　propose　is　in　fact　a　development　of　the　well-known　cell　transmission　model　(CTM)　in　traffic　flow　theory.　In　addition,　the　problem　of　combination　of　vertices　of　UTSC　network　is　considered.