rootbrowseIAC-17D2session 9-D6.29-D6.2. Joint-Session Creating Safe Transportation Systems for Sustainable Commercial Human SpaceflightPapers1. Defining Safety criteria for crew transportation systems and Human Spaceflight missions2. From Here to There: Developing an International Network of Commercial Spaceports3. Preliminary analysis of commercial space tourist operation safety issues for systems with conventional takeoff and landing4. Utility of jet-fans for advanced space propulsion systems5. Equatorial Launch Australia - A Commercial Space Centre6. Comparison of spaceplanes with vertical-landing reusable rockets7. Reusability architectures in a constant demand environment