Currently,　the　study　on　access　design　has　not　yet　conducted　widely　in　large　cities　such　as　Beijing.　As　a　result,　there　is　no　specification　or　criterion　to　dictate　the　layout　and　design　of　driveways　connecting　to　roadways.　Generally,　these　driveways　are　closely　located　to　the　signalized　intersection.　The　egress　and　ingress　of　vehicles　will　greatly　impact　the　operation　of　traffic　at　the　intersection.　In　addition,　this　type　of　design　brings　about　serious　safety　problems.　The　objective　of　this　study　is　to　determine　the　minimum　spacing　between　access　and　signalized　intersection　of　Beijing　based　on　corner　clearance　technology.　As　is　known,　corner　clearance　technology　is　one　of　the　access　management　strategy.　By　analyzing　the　constraints　on　the　corner　clearance　of　the　intersection,　the　influencing　factors　are　determined.　On　this　basis,　a　minimum　spacing　model　between　the　access　and　the　intersection　is　established　in　the　paper.　In　order　to　analyze　the　influencing　factors　on　corner　clearance　of　urban　major　roadways,　the　simulation　model　is　used.　The　delay　is　regarded　as　an　evaluation　index.　The　simulation-based　minimum　corner　clearance　is　determined.　The　result　of　this　study　can　help　traffic　engineers　to　make　sensible　decision　on　the　layout　and　design　of　accesses　near　the　signalized　intersections　of　Beijing.　©　ASCE.