Based　on　the　analysis　of　transfer　behavior　characteristics,　this　paper　classifies　different　transfer　types.　Two　transfer　types　that　passengers　must　spend　time　in　waiting　for　the　next　vehicle　are　studied:　(1)　passengers　who　arrive　and　leave　the　urban　public　transportation　terminal　in　a　group,　and　(2)　passengers　who　arrive　separately　at　the　terminal　and　leave　the　terminal　in　a　group.　This　paper　also　presents　the　equations　of　average　waiting　time　for　the　two　traffic　modes.　On　the　basis　of　the　equations,　some　measures　which　will　shorten　the　waiting　time　are　put　forward　in　order　to　improve　the　operation　efficiency　of　the　transit.　A　simulation　program　is　applied　to　validate　the　precision　of　the　equations.　The　results　show　the　higher　accuracy　of　the　equations　and　lower　workload.　©　ASCE.